[GRASS-SVN] r57600 - sandbox/turek/scatter_plot

svn_grass at osgeo.org svn_grass at osgeo.org
Thu Sep 5 08:30:54 PDT 2013


Author: turek
Date: 2013-09-05 08:30:53 -0700 (Thu, 05 Sep 2013)
New Revision: 57600

Modified:
   sandbox/turek/scatter_plot/README.txt
   sandbox/turek/scatter_plot/testing_patch.diff
Log:
scatter plot: bugs fixing

Modified: sandbox/turek/scatter_plot/README.txt
===================================================================
--- sandbox/turek/scatter_plot/README.txt	2013-09-05 14:16:48 UTC (rev 57599)
+++ sandbox/turek/scatter_plot/README.txt	2013-09-05 15:30:53 UTC (rev 57600)
@@ -17,27 +17,28 @@
 TODO suggestions:
 
 Scatterplot:
-- don't allow to go on when no subgroup is present:
-    - error message about missing subgroup in group <%s>
-    - fall back to group selection dialog + error message about missing
+- don't allow to go on when no subgroup is present: 
+    - error message about missing subgroup in group <%s> #DONE
+    - fall back to group selection dialog + error message about missing #DONE
 
-- Dialog "Add scatter plot"
-   Band 1 (x axis)  <<- add
-   Band 2 (y axis)  <<- add
+- Dialog "Add scatter plot" 
+   Band 1 (x axis)  <<- add #DONE
+   Band 2 (y axis)  <<- add #DONE
 
 - Scatter plot toolbar:
-  - put "Add SP" icon to the left
-  - when in "Select area" mode, un-highlight zoom + pan icons
+  - put "Add SP" icon to the left #DONE
+  - when in "Select area" mode, un-highlight zoom + pan icons 
+  - zoom to extend in toolbar
 
 - Scatter plot window
-  - zoom icon: also allow for zoom box
-  - mouse wheel: 0.1 zoom step (not 0.5)
-  - add values to axis
-  - plot legend: strip @mapset off
+  - zoom icon: also allow for zoom box #DONE
+  - mouse wheel: 0.1 zoom step (not 0.5)#DONE
+  - add values to axis # it is possible but  IDEA show values in statusbar
+  - plot legend: strip @mapset off #DONE
   - second plot is falling out of the main window to the left
 
 - Add class
-  - rerendering zooms out, it should not
+  - rerendering zooms out, it should not #DONE
 
 - confidence ellipse
   - connect to "xx std dev" selection in toolbar

Modified: sandbox/turek/scatter_plot/testing_patch.diff
===================================================================
--- sandbox/turek/scatter_plot/testing_patch.diff	2013-09-05 14:16:48 UTC (rev 57599)
+++ sandbox/turek/scatter_plot/testing_patch.diff	2013-09-05 15:30:53 UTC (rev 57600)
@@ -1,682 +1,1285 @@
-Index: include/imagery.h
+Index: lib/vector/Vlib/open.c
 ===================================================================
---- include/imagery.h	(revision 57581)
-+++ include/imagery.h	(working copy)
-@@ -135,6 +135,56 @@
-     
- } IClass_statistics;
- 
-+/* Scatter Plot backend */
+--- lib/vector/Vlib/open.c	(revision 57599)
++++ lib/vector/Vlib/open.c	(working copy)
+@@ -240,7 +240,9 @@
+         }
+         else {
+             char file_path[GPATH_MAX];
+-            
++            /* reduce to current mapset if search path was set */
++            if(strcmp(Map->mapset, "") == 0)
++                Map->mapset = G_store(G_mapset());
+             /* temporary map: reduce to current mapset if search path
+              * was set */
+             if (strcmp(Map->mapset, "") == 0)
+Index: lib/imagery/scatt.c
+===================================================================
+--- lib/imagery/scatt.c	(revision 0)
++++ lib/imagery/scatt.c	(working copy)
+@@ -0,0 +1,746 @@
++/*!
++   \file lib/imagery/scatt.c
 +
-+#define SC_SCATT_DATA          0 
-+#define SC_SCATT_CONDITIONS    1
++   \brief Imagery library - functions for wx Scatter Plot Tool.
 +
++   Low level functions used by wx Scatter Plot Tool.
 +
-+/*! Holds list of all catagories. 
-+    It can contain selected areas for scatter plots (SC_SCATT_CONDITIONS type) or computed scatter plots (SC_SCATT_DATA type).
-+*/
-+struct scCats 
++   Copyright (C) 2013 by the GRASS Development Team
++
++   This program is free software under the GNU General Public License
++   (>=v2).  Read the file COPYING that comes with GRASS for details.
++
++   \author Stepan Turek <stepan.turek at seznam.cz> (Mentor: Martin Landa)
++ */
++
++#include <grass/raster.h>
++#include <grass/imagery.h>
++#include <grass/gis.h>
++#include <grass/glocale.h>
++
++#include <stdio.h>
++#include <stdlib.h>
++#include <math.h>
++#include <string.h>
++
++
++struct rast_row
 +{
-+    int type;        /*!< SC_SCATT_DATA -> computed scatter plots, SC_SCATT_CONDITIONS -> set conditions for scatter plots to be computed*/
++    CELL * row;
++    char * null_row;
++    struct Range rast_range; /*Range of whole raster.*/
++};
 +
-+    int n_cats;      /*!< number of alocated categories */
++/*!
++   \brief Create pgm header.
++
++   Scatter plot internally generates pgm files. These pgms have header in format created by this function.
 +    
-+    int n_bands;     /*!< number of analyzed bands */
-+    int n_scatts;    /*!< number of possible scattter plot which can be created from bands */
++   \param region region to be pgm header generated for 
++   \param [out] header header of pgm file
++ */
++static int get_cat_rast_header(struct Cell_head * region, char * header){
++    return sprintf(header, "P5\n%d\n%d\n1\n", region->cols, region->rows);
++}
 +
-+    int   n_a_cats;  /*!< number of used/active categories */
-+    int * cats_ids;  /*!< (cat_idx->cat_id) array index is internal idx (position in cats_arr) and id is saved in it's position*/
-+    int * cats_idxs; /*!< (cat_id->cat_idx) array index is id and internal idx is saved in it's position*/
++/*!
++   \brief Create category raster conditions file.
++    
++   \param cat_rast_region region to be file generated for
++   \param cat_rast path of generated category raster file
++ */
++int I_create_cat_rast(struct Cell_head * cat_rast_region,  const char * cat_rast)
++{
++    FILE * f_cat_rast;
++    char cat_rast_header[1024];//TODO magic number 
++    int i_row, i_col;
++    int head_nchars;
 +
-+    struct scScatts ** cats_arr; /*!< array of pointers to struct scScatts */
-+};
++    unsigned char * row_data;
 +
++    f_cat_rast = fopen(cat_rast, "wb");
++    if(!f_cat_rast) {
++        G_warning("Unable to create category raster condition file <%s>.", cat_rast);
++        return -1;
++    }
 +
-+/*! Holds list of all scatter plots, which belongs to category. 
++    head_nchars = get_cat_rast_header(cat_rast_region, cat_rast_header);
++
++    fwrite(cat_rast_header, sizeof(char), head_nchars/sizeof(char), f_cat_rast);
++    if (ferror(f_cat_rast)){
++        fclose(f_cat_rast);
++        G_warning(_("Unable to write header into category raster condition file <%s>."), cat_rast);
++        return -1;
++    }
++
++    row_data = (unsigned char *) G_malloc(cat_rast_region->cols * sizeof(unsigned char));
++    for(i_col = 0; i_col < cat_rast_region->cols; i_col++)
++        row_data[i_col] = 0 & 255;
++
++    for(i_row = 0; i_row < cat_rast_region->rows; i_row++) {
++        fwrite(row_data, sizeof(unsigned char), (cat_rast_region->cols)/sizeof(unsigned char), f_cat_rast);
++        if (ferror(f_cat_rast))
++        {
++            fclose(f_cat_rast);
++            G_warning(_("Unable to write into category raster condition file <%s>."), cat_rast);
++            return -1;
++        }
++    }
++
++    fclose(f_cat_rast);
++    return 0;
++}
++
++static int print_reg(struct Cell_head * intersec, const char * pref, int dbg_level)
++{
++    G_debug(dbg_level, "%s:\n n:%f\ns:%f\ne:%f\nw:%f\nns_res:%f\new_res:%f", pref, intersec->north, intersec->south, 
++               intersec->east, intersec->west, intersec->ns_res, intersec->ew_res);
++}
++
++/*!
++   \brief Find intersection region of two regions.
++
++   \param A pointer to intersected region
++   \param B pointer to intersected region
++   \param [out] intersec pointer to intersection region of regions A B (relevant params of the region are: south, north, east, west)
++
++   \return  0 if interection exists
++   \return -1 if regions does not intersect
++ */
++static int regions_intersecion(struct Cell_head * A, struct Cell_head * B, struct Cell_head * intersec)
++{
++
++    if(B->north < A->south) return -1;
++    else if(B->north > A->north) intersec->north = A->north;
++    else intersec->north = B->north;
++
++    if(B->south > A->north) return -1;
++    else if(B->south < A->south) intersec->south = A->south;
++    else intersec->south = B->south;
++
++    if(B->east < A->west) return -1;
++    else if(B->east > A->east) intersec->east = A->east;
++    else intersec->east = B->east;
++
++    if(B->west > A->east) return -1;
++    else if(B->west < A->west) intersec->west = A->west;
++    else intersec->west = B->west;
++
++    if(intersec->north == intersec->south) return -1;
++
++    if(intersec->east == intersec->west) return -1;
++
++    return 0;
++
++}
++
++/*!
++   \brief Get rows and cols numbers, which defines intersection of the regions.
++  
++   \param A pointer to intersected region
++   \param B pointer to intersected region (A and B must have same resolution)
++   \param [out] A_bounds rows and cols numbers of A stored in south, north, east, west, which defines intersection of A and B
++   \param [out] B_bounds rows and cols numbers of B stored in south, north, east, west, which defines intersection of A and B
++
++   \return  0 if interection exists
++   \return -1 if regions do not intersect
++   \return -2 resolution of regions is not same 
 +*/
-+struct scScatts
++static int get_rows_and_cols_bounds(struct Cell_head * A,  struct Cell_head * B, struct Cell_head * A_bounds,  struct Cell_head * B_bounds)
 +{
-+    int n_a_scatts;     /*!< number of used/active scatter plots*/
++    float ns_res, ew_res;
++
++    struct Cell_head intersec;
++
++    /* TODO is it right check? */
++    if(abs(A->ns_res - B->ns_res) > GRASS_EPSILON) {
++        G_debug(0, "'get_rows_and_cols_bounds' ns_res does not fit, A->ns_res: %f B->ns_res: %f", A->ns_res, B->ns_res);
++        return -2;
++    }
++
++    if(abs(A->ew_res - B->ew_res) > GRASS_EPSILON) {
++        G_debug(0, "'get_rows_and_cols_bounds' ew_res does not fit, A->ew_res: %f B->ew_res: %f", A->ew_res, B->ew_res);
++        return -2;
++    }
++
++    ns_res = A->ns_res;
++    ew_res = A->ew_res;
++
++    if(regions_intersecion(A, B, &intersec) == -1)
++        return -1;
++
++    A_bounds->north = ceil((A->north - intersec.north - ns_res * 0.5) / ns_res);
++    A_bounds->south = ceil((A->north - intersec.south - ns_res * 0.5) / ns_res);
++
++    A_bounds->east = ceil((intersec.east - A->west - ew_res * 0.5) / ew_res);
++    A_bounds->west = ceil((intersec.west - A->west - ew_res * 0.5) / ew_res);
++
++    B_bounds->north = ceil((B->north - intersec.north - ns_res * 0.5) / ns_res);
++    B_bounds->south = ceil((B->north - intersec.south - ns_res * 0.5) / ns_res);
++
++    B_bounds->east = ceil((intersec.east - B->west - ew_res * 0.5) / ew_res);
++    B_bounds->west = ceil((intersec.west - B->west - ew_res * 0.5) / ew_res);
++
++    return 0;
++}
++
++/*!
++   \brief Insert raster map patch into pgm file.
++  
++   \param patch_rast name of raster map
++   \param cat_rast_region region of category raster file
++   \param cat_rast path to category raster file
++
++   \return  0 on success
++   \return -1 on failure
++*/
++int I_insert_patch_to_cat_rast(const char * patch_rast, struct Cell_head * cat_rast_region,  const char * cat_rast)
++{
++
++    FILE * f_cat_rast;
++    struct Cell_head patch_region, patch_bounds, cat_rast_bounds;
++    char cat_rast_header[1024];//TODO magic number 
++    int i_row, i_col, ncols, nrows, cat_rast_col, patch_col, val;
++    int head_nchars, ret;
++    int fd_patch_rast, init_shift, step_shift;
++    unsigned char * patch_data;
++
++    char * null_chunk_row;
++
++    const char *mapset;
++
++    struct Cell_head patch_lines, cat_rast_lines;
++
++    unsigned char * row_data;
++
++    f_cat_rast = fopen(cat_rast, "rb+");
++    if(!f_cat_rast) {
++        G_warning(_("Unable to open category raster condtions file <%s>."), cat_rast);
++        return -1;
++    }
++
++    head_nchars = get_cat_rast_header(cat_rast_region, cat_rast_header);
++    if ((mapset = G_find_raster(patch_rast,"")) == NULL) {
++        fclose(f_cat_rast);
++        G_warning(_("Unable to find patch raster <%s>."), patch_rast);
++        return -1;
++    }
++
++    Rast_get_cellhd(patch_rast, mapset, &patch_region);
++    Rast_set_window(&patch_region);
++            
++    if ((fd_patch_rast = Rast_open_old(patch_rast, mapset)) < 0) {
++        fclose(f_cat_rast);
++        return -1;
++    }
++
++    ret = get_rows_and_cols_bounds(cat_rast_region, &patch_region, &cat_rast_bounds, &patch_bounds);
++    if(ret == -2) { 
++        G_warning(_("Resolutions of patch <%s> and patched file <%s> are not same."), patch_rast, cat_rast);
++
++        Rast_close(fd_patch_rast);
++        fclose(f_cat_rast);
++
++        return -1;
++    }
++    else if (ret == -1){
++
++        Rast_close(fd_patch_rast);
++        fclose(f_cat_rast);
++
++        return 0;
++    }
++
++    ncols = cat_rast_bounds.east - cat_rast_bounds.west;
++    nrows = cat_rast_bounds.south - cat_rast_bounds.north;
++
++    patch_data = (unsigned char *) G_malloc(ncols * sizeof(unsigned char));
++
++    init_shift = head_nchars + cat_rast_region->cols * cat_rast_bounds.north + cat_rast_bounds.west;
++
++    if(fseek(f_cat_rast, init_shift, SEEK_SET) != 0) {
++        G_warning(_("Corrupted  category raster conditions file <%s> (fseek failed)"), cat_rast);
++
++        Rast_close(fd_patch_rast);
++        G_free(null_chunk_row);
++        fclose(f_cat_rast);
++
++        return -1;
++    }
++
++    step_shift = cat_rast_region->cols - ncols;
++
++    null_chunk_row =  Rast_allocate_null_buf();
 +    
-+    int * scatts_bands; /*!< array of bands for which represents the scatter plots, 
-+                             every scatter plot has assigned two bads (size of array is n_a_scatts * 2)*/
-+    int * scatt_idxs;   /*!< (scatt_id->scatt_idx) internal idx of the scatter plot (position in scatts_arr)*/
++    for(i_row = 0; i_row < nrows; i_row++) {
++        Rast_get_null_value_row (fd_patch_rast, null_chunk_row, i_row + patch_bounds.north);
 +
-+    struct scdScattData ** scatts_arr; /*!< array of pointers to scdScattData */
-+};
++        for(i_col = 0; i_col < ncols; i_col++) {
++            patch_col = patch_bounds.west + i_col;
 +
-+/*! Holds scatter plot data.
++            if(null_chunk_row[patch_col] != 1) 
++                patch_data[i_col] = 1 & 255;
++            else {
++                patch_data[i_col] = 0 & 255;
++            }
++        }
++
++        fwrite(patch_data, sizeof(unsigned char), (ncols)/sizeof(unsigned char), f_cat_rast);
++        if (ferror(f_cat_rast))
++        {
++            G_warning(_("Unable to write into category raster conditions file <%s>"), cat_rast);
++            
++            Rast_close(fd_patch_rast);
++            G_free(null_chunk_row);
++            fclose(f_cat_rast);
++
++            return -1;
++        }
++        if(fseek(f_cat_rast, step_shift, SEEK_CUR) != 0) {
++            G_warning(_("Corrupted  category raster conditions file <%s> (fseek failed)"), cat_rast);
++            
++            Rast_close(fd_patch_rast);
++            G_free(null_chunk_row);
++            fclose(f_cat_rast);
++            
++            return -1;
++        }
++    }
++
++    Rast_close(fd_patch_rast);
++    G_free(null_chunk_row);
++    fclose(f_cat_rast);
++    return 0;
++}
++
++/*!
++   \brief Updates scatter plots data in category by pixels which meets category conditions.
++  
++   \param bands_rows data represents data describig one row from raster band
++   \param belongs_pix array which defines which pixels belongs to category (1 value) and which not (0 value)
++   \param [out] scatts pointer to scScatts struct of type SC_SCATT_DATA, which are modified according to values in belongs_pix
 +*/
-+struct scdScattData
++static inline void update_cat_scatt_plts(struct rast_row * bands_rows, unsigned short * belongs_pix, struct scScatts * scatts)
 +{
-+    int n_vals; /*!< Number of values in scatter plot. */
++    int band_axis_1, band_axis_2, i_scatt, array_idx, cat_idx, i_chunk_rows_pix, max_arr_idx;
 +
-+    unsigned char  * b_conds_arr; /*!< array of selected areas (used for SC_SCATT_CONDITIONS type) otherwise NULL */
-+    unsigned int  * scatt_vals_arr; /*!< array of computed areas (used for SC_SCATT_DATA type) otherwise NULL */
-+};
++    CELL * b_1_row;
++    CELL * b_2_row;
++    char * b_1_null_row,* b_2_null_row;
++    struct rast_row b_1_rast_row, b_2_rast_row;
 +
++    struct Range b_1_range, b_2_range;
++    int b_1_range_size;
 +
- #define SIGNATURE_TYPE_MIXED 1
- 
- #define GROUPFILE "CURGROUP"
-Index: include/defs/vedit.h
-===================================================================
---- include/defs/vedit.h	(revision 57581)
-+++ include/defs/vedit.h	(working copy)
-@@ -33,6 +33,8 @@
- int Vedit_merge_lines(struct Map_info *, struct ilist *);
- 
- /* move.c */
-+int Vedit_move_areas(struct Map_info *, struct Map_info **, int,
-+		     		 struct ilist *, double, double, double, int, double);
- int Vedit_move_lines(struct Map_info *, struct Map_info **, int,
- 		     struct ilist *, double, double, double, int, double);
- 
-Index: include/defs/imagery.h
-===================================================================
---- include/defs/imagery.h	(revision 57581)
-+++ include/defs/imagery.h	(working copy)
-@@ -110,6 +110,23 @@
- FILE *I_fopen_subgroup_ref_new(const char *, const char *);
- FILE *I_fopen_subgroup_ref_old(const char *, const char *);
- 
-+/* scatt_plt.c */
-+void I_sc_init_cats(struct scCats *, int, int);
-+void I_sc_free_cats(struct scCats *);
-+int I_sc_add_cat(struct scCats *);
-+int I_sc_insert_scatt_data(struct scCats *, struct scdScattData *, int, int);
++    int row_size = Rast_window_cols();
 +
-+void I_scd_init_scatt_data(struct scdScattData *, int, int, void *);
++    int * scatts_bands = scatts->scatts_bands;
 +
-+int I_compute_scatts(struct Cell_head *, struct scCats *, const char **, 
-+	                 const char **, int, struct scCats *, const char **);
++    for(i_scatt = 0; i_scatt < scatts->n_a_scatts; i_scatt++)
++    {   
++        b_1_rast_row = bands_rows[scatts_bands[i_scatt * 2]];
++        b_2_rast_row = bands_rows[scatts_bands[i_scatt * 2 + 1]];
 +
-+int I_create_cat_rast(struct Cell_head *, const char *);
-+int I_insert_patch_to_cat_rast(const char *, struct Cell_head *,  const char *);
++        b_1_row = b_1_rast_row.row;
++        b_2_row = b_2_rast_row.row;
 +
-+int I_id_scatt_to_bands(const int, const int, int *, int *);
-+int I_bands_to_id_scatt(const int, const int, const int, int *);
++        b_1_null_row =  b_1_rast_row.null_row;
++        b_2_null_row =  b_2_rast_row.null_row;
 +
- /* sig.c */
- int I_init_signatures(struct Signature *, int);
- int I_new_signature(struct Signature *);
-Index: gui/wxpython/vdigit/wxdigit.py
-===================================================================
---- gui/wxpython/vdigit/wxdigit.py	(revision 57581)
-+++ gui/wxpython/vdigit/wxdigit.py	(working copy)
-@@ -17,7 +17,7 @@
- (and NumPy would be an excellent candidate for acceleration via
- e.g. OpenCL or CUDA; I'm surprised it hasn't happened already).
- 
--(C) 2007-2011 by the GRASS Development Team
-+(C) 2007-2011, 2013 by the GRASS Development Team
- 
- This program is free software under the GNU General Public License
- (>=v2). Read the file COPYING that comes with GRASS for details.
-@@ -27,6 +27,8 @@
- 
- import grass.script.core as grass
- 
-+from grass.pydispatch.signal import Signal
++        b_1_range = b_1_rast_row.rast_range;
++        b_2_range = b_2_rast_row.rast_range;
++        
++        b_1_range_size = b_1_range.max - b_1_range.min + 1;
++        max_arr_idx = (b_1_range.max -  b_1_range.min + 1) * (b_2_range.max -  b_2_range.min + 1);
 +
- from core.gcmd        import GError
- from core.debug       import Debug
- from core.settings    import UserSettings
-@@ -176,7 +178,21 @@
-         
-         if self.poMapInfo:
-             self.InitCats()
--        
++        for(i_chunk_rows_pix = 0; i_chunk_rows_pix < row_size; i_chunk_rows_pix++)
++        {
++            /* pixel does not belongs to scatter plot or has null value in one of the bands */
++            if(!belongs_pix[i_chunk_rows_pix] || 
++                b_1_null_row[i_chunk_rows_pix] == 1 || 
++                b_2_null_row[i_chunk_rows_pix] == 1)                
++                continue;
 +
-+        self.emit_signals = False
++            /* index in scatter plot array */
++            array_idx = b_1_row[i_chunk_rows_pix] - b_1_range.min + (b_2_row[i_chunk_rows_pix] - b_2_range.min) * b_1_range_size;
 +
-+        # signals which describes features changes during digitization, 
-+        # activate them using EmitSignals method 
-+        #TODO signal for errors?
-+        self.featureAdded = Signal('IVDigit.featureAdded')
-+        self.areasDeleted = Signal('IVDigit.areasDeleted')
-+        self.vertexMoved = Signal('IVDigit.vertexMoved')
-+        self.vertexAdded = Signal('IVDigit.vertexAdded')
-+        self.vertexRemoved = Signal('IVDigit.vertexRemoved')
-+        self.featuresDeleted = Signal('IVDigit.featuresDeleted')
-+        self.featuresMoved = Signal('IVDigit.featuresMoved')
-+        self.lineEdited = Signal('IVDigit.lineEdited')
++            if(array_idx < 0 || array_idx >= max_arr_idx) {
++                        G_warning ("Data inconsistent. Value computed for scatter plot is out of initialized range.");
++                continue;
++            }
 +
-     def __del__(self):
-         Debug.msg(1, "IVDigit.__del__()")
-         Vect_destroy_line_struct(self.poPoints)
-@@ -188,7 +204,12 @@
-             Vect_close(self.poBgMapInfo)
-             self.poBgMapInfo = self.popoBgMapInfo = None
-             del self.bgMapInfo
--        
++            /* increment scatter plot value */
++            ++scatts->scatts_arr[i_scatt]->scatt_vals_arr[array_idx];
++        }
++    }
++}
++
++/*!
++   \brief Computes scatter plots data from chunk_rows.
++
++   \param scatts pointer to scScatts struct of type SC_SCATT_DATA, where are computed scatter plots stored
++   \param scatt_conds pointer to scScatts struct of type SC_SCATT_CONDITIONS, where are selected areas (condtitions)stored
++
++   \param chunk_rows data arrays of chunk_rows from analyzed raster bands (all data in chunk_rows, null_chunk_rows and belongs_pix arrays represents same region)
++   \param null_chunk_rows null data arrays of chunk_rows from analyzed raster bands
++   \param row_size size of data in chunk_rows, null_chunk_rows and belongs_pix arrays
++   \param f_cats_rasts_conds file which stores selected areas (conditions) from mapwindow see I_create_cat_rast() and I_pa
++   \param fd_cats_rasts array of openedraster maps which represents all selected pixels for category
++   \param region analysis region
++
++   \return  0 on success
++   \return -1 on failure
++*/
++static inline int compute_scatts_from_chunk_row(struct Cell_head *region, struct scCats * scatt_conds, 
++                                                FILE ** f_cats_rasts_conds, struct rast_row * bands_rows, 
++                                                struct scCats * scatts, int * fd_cats_rasts)
++{
++
++    int i_rows_pix, i_cat, i_scatt, n_a_scatts, n_pixs;
++    int cat_id, scatt_plts_cat_idx, array_idx, max_arr_idx;
++    char * b_1_null_row,* b_2_null_row;
++    struct rast_row b_1_rast_row, b_2_rast_row;
++    CELL * cat_rast_row;
++
++    struct scScatts * scatts_conds;
++    struct scScatts * scatts_scatt_plts;
++    struct scdScattData * conds;
++
++    struct Range b_1_range, b_2_range;
++    int b_1_range_size;
++
++    int * scatts_bands;
++    struct scdScattData ** scatts_arr;
++
++    CELL * b_1_row;
++    CELL * b_2_row;
++    unsigned char * i_scatt_conds;
++
++    int row_size = Rast_window_cols();
++
++    unsigned short * belongs_pix = (unsigned short *) G_malloc(row_size * sizeof(unsigned short)); 
++    unsigned char * rast_pixs = (unsigned char *) G_malloc(row_size * sizeof(unsigned char));
++    cat_rast_row =  Rast_allocate_c_buf();
++
 +     
-+    def EmitSignals(self, emit):
-+        """!Activate/deactivate signals which describes features changes during digitization.
-+        """
-+        self.emit_signals = emit
++    for(i_cat = 0; i_cat < scatt_conds->n_a_cats; i_cat++)
++    {
++        scatts_conds = scatt_conds->cats_arr[i_cat];
 +
-     def CloseBackgroundMap(self):
-         """!Close background vector map"""
-         if not self.poBgMapInfo:
-@@ -394,7 +415,6 @@
-         
-         @return tuple (number of added features, feature ids)
-         """
--        
-         layer = self._getNewFeaturesLayer()
-         cat = self._getNewFeaturesCat()
-         
-@@ -419,10 +439,14 @@
-             return (-1, None)
-         
-         self.toolbar.EnableUndo()
--        
--        return self._addFeature(vtype, points, layer, cat,
--                                self._getSnapMode(), self._display.GetThreshold())
--    
++        cat_id = scatt_conds->cats_ids[i_cat];
 +
-+        ret = self._addFeature(vtype, points, layer, cat,
-+                               self._getSnapMode(), self._display.GetThreshold())
-+        if ret[0] > -1 and self.emit_signals:
-+            self.featureAdded.emit(new_bboxs = [self._createBbox(points)], new_areas_cats = [[{layer : [cat]}, None]])
++        scatt_plts_cat_idx = scatts->cats_idxs[cat_id];
++        if(scatt_plts_cat_idx < 0)
++            continue;
++        scatts_scatt_plts = scatts->cats_arr[scatt_plts_cat_idx];
 +
-+        return ret
++        G_zero(belongs_pix, row_size * sizeof(unsigned short));
 +
-     def DeleteSelectedLines(self):
-         """!Delete selected features
- 
-@@ -434,16 +458,27 @@
-         # collect categories for deleting if requested
-         deleteRec = UserSettings.Get(group = 'vdigit', key = 'delRecord', subkey = 'enabled')
-         catDict = dict()
++        /* if category has no conditions defined, scatter plots without any constraint are computed (default scatter plots) */
++        if(!scatts_conds->n_a_scatts && !f_cats_rasts_conds[i_cat]) {
++            for(i_scatt = 0; i_scatt < scatts_scatt_plts->n_a_scatts; i_scatt++)
++            {       
++                /* all pixels belongs */
++                for(i_rows_pix = 0; i_rows_pix < row_size; i_rows_pix++)                
++                    belongs_pix[i_rows_pix] = 1;
++            }
++        }
++        /* compute belonging pixels for defined conditions */
++        else
++        {
++            scatts_bands = scatts_conds->scatts_bands;
 +
-+        old_bboxs = []
-+        old_areas_cats = []
-         if deleteRec:
-             for i in self._display.selected['ids']:
-+                
-                 if Vect_read_line(self.poMapInfo, None, self.poCats, i) < 0:
-                     self._error.ReadLine(i)
-                 
--                cats = self.poCats.contents
--                for j in range(cats.n_cats):
--                    if cats.field[j] not in catDict.keys():
--                        catDict[cats.field[j]] = list()
--                    catDict[cats.field[j]].append(cats.cat[j])
-+                if self.emit_signals:
-+                    ret = self._getLineAreaBboxCats(i)
-+                    if ret:
-+                        old_bboxs += ret[0]
-+                        old_areas_cats += ret[1]
-+                
-+                # catDict was not used -> put into comment
-+                #cats = self.poCats.contents
-+                #for j in range(cats.n_cats):
-+                #    if cats.field[j] not in catDict.keys():
-+                #        catDict[cats.field[j]] = list()
-+                #    catDict[cats.field[j]].append(cats.cat[j])
-         
-         poList = self._display.GetSelectedIList()
-         nlines = Vedit_delete_lines(self.poMapInfo, poList)
-@@ -456,7 +491,10 @@
-                 self._deleteRecords(catDict)
-             self._addChangeset()
-             self.toolbar.EnableUndo()
--        
++            /* check conditions from category raster condtitions file */
++            if(f_cats_rasts_conds[i_cat]) {
++                n_pixs = fread(rast_pixs, sizeof(unsigned char), (row_size)/sizeof(unsigned char), f_cats_rasts_conds[i_cat]);
 +
-+            if self.emit_signals:
-+                self.featuresDeleted.emit(old_bboxs = old_bboxs, old_areas_cats = old_areas_cats)
++                if (ferror(f_cats_rasts_conds[i_cat]))
++                {
++                    G_free(rast_pixs);
++                    G_free(belongs_pix);
++                    G_warning(_("Unable to read from category raster condtition file."));
++                    return -1;
++                }
++                if (n_pixs != n_pixs) {
++                    G_free(rast_pixs);
++                    G_free(belongs_pix);
++                    G_warning(_("Invalid size of category raster conditions file."));
++                    return -1;
 +
-         return nlines
-             
-     def _deleteRecords(self, cats):
-@@ -512,22 +550,173 @@
- 
-         @return number of deleted 
-         """
-+        if len(self._display.selected['ids']) < 1:
-+            return 0
-+        
-         poList = self._display.GetSelectedIList()
-         cList  = poList.contents
-         
-         nareas = 0
-+        old_bboxs = []
-+        old_areas_cats = []
++                }
 +
-         for i in range(cList.n_values):
++                for(i_rows_pix = 0; i_rows_pix < row_size; i_rows_pix++)
++                {
++                    if(rast_pixs[i_rows_pix] != 0 & 255)
++                        belongs_pix[i_rows_pix] = 1;
++                }
++            }
 +
-             if Vect_get_line_type(self.poMapInfo, cList.value[i]) != GV_CENTROID:
-                 continue
--            
++            /* check condtions defined in scatter plots*/
++            for(i_scatt = 0; i_scatt < scatts_conds->n_a_scatts; i_scatt++)
++            {   
++                b_1_rast_row = bands_rows[scatts_bands[i_scatt * 2]];
++                b_2_rast_row = bands_rows[scatts_bands[i_scatt * 2 + 1]];
 +
-+            if self.emit_signals:
-+                area = Vect_get_centroid_area(self.poMapInfo, cList.value[i]);
-+                if area > 0: 
-+                    bbox, cats = self._getaAreaBboxCats(area)
-+                    old_bboxs += bbox
-+                    old_areas_cats += cats
++                b_1_row = b_1_rast_row.row;
++                b_2_row = b_2_rast_row.row;
 +
-             nareas += Vedit_delete_area_centroid(self.poMapInfo, cList.value[i])
-         
-         if nareas > 0:
-             self._addChangeset()
-             self.toolbar.EnableUndo()
-+            if self.emit_signals:
-+                self.areasDeleted.emit(old_bboxs = old_bboxs, old_areas_cats = old_areas_cats)        
++                b_1_null_row =  b_1_rast_row.null_row;
++                b_2_null_row =  b_2_rast_row.null_row;
 +
-+        return nareas
++                b_1_range = b_1_rast_row.rast_range;
++                b_2_range = b_2_rast_row.rast_range;
++
++                b_1_range_size = b_1_range.max - b_1_range.min + 1;
++                max_arr_idx = (b_1_range.max -  b_1_range.min + 1) * (b_2_range.max -  b_2_range.min + 1);
++
++                i_scatt_conds = scatts_conds->scatts_arr[i_scatt]->b_conds_arr;
++
++                for(i_rows_pix = 0; i_rows_pix < row_size; i_rows_pix++)
++                {
++                    /* pixels already belongs to category from category raster conditions file or contains null value in one of the bands */
++                    if(belongs_pix[i_rows_pix] || 
++                       b_1_null_row[i_rows_pix] == 1 || 
++                       b_2_null_row[i_rows_pix] == 1)
++                        continue;
++
++                    array_idx = b_1_row[i_rows_pix] - b_1_range.min + (b_2_row[i_rows_pix] - b_2_range.min) * b_1_range_size;
++                    if(array_idx < 0 || array_idx >= max_arr_idx) {
++                        G_warning ("Data inconsistent. Value computed for scatter plot is out of initialized range.");
++                        continue;
++                    }
++                    /* pixels meets condtion defined in scatter plot */
++                    if(i_scatt_conds[array_idx])
++                        belongs_pix[i_rows_pix] = 1;
++                }                
++            }
++        }
++
++        /* update category raster with belonging pixels */
++        if(fd_cats_rasts[i_cat] >= 0) {
++            Rast_set_null_value(cat_rast_row, Rast_window_cols(), CELL_TYPE); 
++
++            for(i_rows_pix = 0; i_rows_pix < row_size; i_rows_pix++)
++                if(belongs_pix[i_rows_pix])
++                    cat_rast_row[i_rows_pix] = belongs_pix[i_rows_pix];
++
++            Rast_put_c_row (fd_cats_rasts[i_cat], cat_rast_row); 
++        }
++
++        /* update scatter plots with belonging pixels */
++        update_cat_scatt_plts(bands_rows, belongs_pix, scatts_scatt_plts);
++    }
++
++    G_free(cat_rast_row);
++    G_free(rast_pixs);
++    G_free(belongs_pix);
++
++    return 0;
++}
++
++/*!
++   \brief Get list if bands needed to be opened for analysis from scCats struct.
++*/
++static void get_needed_bands(struct scCats * cats, int * b_needed_bands)
++{
++    // results in b_needed_bands - array of bools - if item has value 1, band (defined by item index) is needed to be opened
++    int i_cat, i_scatt, cat_id;
++
++    for(i_cat = 0;  i_cat < cats->n_a_cats; i_cat++)
++    {   
++        for(i_scatt = 0;  i_scatt < cats->cats_arr[i_cat]->n_a_scatts; i_scatt++)
++        {   
++            G_debug(3, "Active scatt %d in catt %d", i_scatt, i_cat);
++
++            b_needed_bands[cats->cats_arr[i_cat]->scatts_bands[i_scatt * 2]] = 1;
++            b_needed_bands[cats->cats_arr[i_cat]->scatts_bands[i_scatt * 2 + 1]] = 1;
++        }
++    }
++    return;
++}
++
++/*!
++   \brief Helper function for clean up.
++*/
++static void free_compute_scatts_data(int * fd_bands, struct rast_row * bands_rows, int n_a_bands, int * bands_ids, 
++                                     int * fd_cats_rasts, FILE ** f_cats_rasts_conds, int n_a_cats)
++{
++    int i, band_id;
++
++    for(i = 0; i < n_a_bands; i++)
++    {   
++        band_id = bands_ids[i];
++        if(band_id >= 0) {
++            Rast_close(fd_bands[i]);
++            G_free(bands_rows[band_id].row);
++            G_free(bands_rows[band_id].null_row);
++        }
++    }
++     
++    if(f_cats_rasts_conds)
++        for(i = 0; i < n_a_cats; i++)
++            if(f_cats_rasts_conds[i])
++                fclose(f_cats_rasts_conds[i]);
++
++    if(fd_cats_rasts)
++        for(i = 0; i < n_a_cats; i++)
++            if(fd_cats_rasts[i] >= 0)
++                Rast_close(fd_cats_rasts[i]);
++
++}
++
++/*!
++   \brief Compute scatter plots data.
++
++    If category has not defined no category raster condition file and no scatter plot with consdtion,
++    default scatter plot is computed.
++
++   \param region analysis region, beaware that all input data must be prepared for this region (bands (their ranges), cats_rasts_conds rasters...)
++   \param region function calls Rast_set_window for this region
++   \param scatt_conds pointer to scScatts struct of type SC_SCATT_CONDITIONS, where are stored selected areas (conditions) in scatter plots
++   \param cats_rasts_conds paths to category raster conditions files representing selected areas (conditions) in rasters for every category 
++   \param cats_rasts_conds index in array represents corresponding category id
++   \param cats_rasts_conds for manupulation with category raster conditions file see also I_id_scatt_to_bands() and I_insert_patch_to_cat_rast()
++   \param bands names of analyzed bands, order of bands is defined by their id
++   \param n_bands number of bands
++   \param [out] scatts pointer to scScatts struct of type SC_SCATT_DATA, where are computed scatter plots stored
++   \param [out] cats_rasts array of raster maps names where will be stored all selected pixels for every category
++
++   \return  0 on success
++   \return -1 on failure
++*/
++int I_compute_scatts(struct Cell_head *region, struct scCats * scatt_conds, const char ** cats_rasts_conds,
++                     const char ** bands, int n_bands, struct scCats * scatts, const char ** cats_rasts) 
++{
++    const char *mapset;
++    char header[1024];
++
++    int fd_cats_rasts[scatt_conds->n_a_cats];
++    FILE * f_cats_rasts_conds[scatt_conds->n_a_cats];
++
++    struct rast_row bands_rows[n_bands];
++
++    RASTER_MAP_TYPE data_type;
++
++    int nrows, i_band, n_a_bands, band_id, 
++        i, i_row, head_nchars, i_cat, id_cat;
 +   
-+    def _getLineAreaBboxCats(self, ln_id):
-+        ltype = Vect_read_line(self.poMapInfo, None, None, ln_id)
++    int fd_bands[n_bands];
++    int bands_ids[n_bands];
++    int b_needed_bands[n_bands];  
 +
-+        if ltype == GV_CENTROID:
-+            #TODO centroid opttimization, can be adited also its area -> it will appear two times in new_ lists
-+            return self._getCentroidAreaBboxCats(ln_id)
-+        else: 
-+            return [self._getBbox(ln_id)], [self._getLineAreasCategories(ln_id)]
++    Rast_set_window(region);
 +
++    for(i_band = 0; i_band < n_bands; i_band++)
++        fd_bands[i_band] = -1;
++    
++    for(i_band = 0; i_band < n_bands; i_band++)
++        bands_ids[i_band] = -1;
 +
-+    def _getCentroidAreaBboxCats(self, centroid):
-+        if not Vect_line_alive(self.poMapInfo, centroid):
-+            return None
++    if (n_bands != scatts->n_bands ||
++        n_bands != scatt_conds->n_bands)
++        return -1;
 +
-+        area = Vect_get_centroid_area(self.poMapInfo, centroid)  
-+        if area > 0:
-+            return self._getaAreaBboxCats(area)
-+        else:
-+            return None
++    memset(b_needed_bands, 0, (size_t)n_bands * sizeof(int));
 +
-+    def _getaAreaBboxCats(self, area):
++    get_needed_bands(scatt_conds, &b_needed_bands[0]);
++    get_needed_bands(scatts, &b_needed_bands[0]);
 +
-+        po_b_list = Vect_new_list()
-+        Vect_get_area_boundaries(self.poMapInfo, area, po_b_list);
-+        b_list = po_b_list.contents
++    n_a_bands = 0;
 +
-+        geoms = []
-+        areas_cats = []
++    /* open band rasters, which are needed for computation */
++    for(band_id = 0; band_id < n_bands; band_id++)
++    {
++        if(b_needed_bands[band_id])
++        {
++            G_debug(3, "Opening raster no. %d with name: %s", band_id, bands[band_id]);
 +
-+        if b_list.n_values > 0:
-+            for i_line in range(b_list.n_values):
++            if ((mapset = G_find_raster2(bands[band_id],"")) == NULL) {
++                free_compute_scatts_data(fd_bands, bands_rows, n_a_bands, 
++                                         bands_ids, NULL, NULL, scatt_conds->n_a_cats);
++                G_warning(_("Unbale to read find raster <%s>"), bands[band_id]);
++                return -1;
++            }
++            
++            if ((fd_bands[n_a_bands] = Rast_open_old(bands[band_id], mapset)) < 0) {
++                free_compute_scatts_data(fd_bands, bands_rows, n_a_bands, 
++                                         bands_ids, NULL, NULL, scatt_conds->n_a_cats);
++                G_warning(_("Unbale to open raster <%s>"), bands[band_id]);
++                return -1;
++            }
 +
-+                line = b_list.value[i_line];
++            data_type = Rast_get_map_type(fd_bands[n_a_bands]);
++            if(data_type != CELL_TYPE) {
++                G_warning(_("Raster <%s> type is not <%s>"), bands[band_id], "CELL");
++                return -1;
++            }
 +
-+                geoms.append(self._getBbox(abs(line)))
-+                areas_cats.append(self._getLineAreasCategories(abs(line)))
-         
--        return nareas
-+        Vect_destroy_list(po_b_list);
++            bands_rows[band_id].row =  Rast_allocate_c_buf();
++            bands_rows[band_id].null_row =  Rast_allocate_null_buf();
 +
-+        return geoms, areas_cats
++            if(Rast_read_range(bands[band_id], mapset, &bands_rows[band_id].rast_range) != 1){
++                free_compute_scatts_data(fd_bands, bands_rows, n_a_bands, 
++                                         bands_ids, NULL, NULL, scatt_conds->n_a_cats);
++                G_warning(_("Unable to read range of raster <%s>"), bands[band_id]);
++                return -1;
++            }      
 +
-+    def _getLineAreasCategories(self, ln_id):
-+        if not Vect_line_alive (self.poMapInfo, ln_id):
-+            return []
++            bands_ids[n_a_bands] = band_id;
++            ++n_a_bands;
++        }
++    }
 +
-+        ltype = Vect_read_line(self.poMapInfo, None, None, ln_id)
-+        if ltype != GV_BOUNDARY:
-+            return []
++    /* open category rasters condition files and category rasters */
++    for(i_cat = 0; i_cat < scatts->n_a_cats; i_cat++)
++    {
++        id_cat = scatts->cats_ids[i_cat];
++        if(cats_rasts[id_cat]) {
++            fd_cats_rasts[i_cat] = Rast_open_new(cats_rasts[id_cat], CELL_TYPE);   
++        }
++        else
++            fd_cats_rasts[i_cat] = -1;
 +
-+        cats = [None, None]
++        if(cats_rasts_conds[id_cat]) {
++            f_cats_rasts_conds[i_cat] = fopen(cats_rasts_conds[id_cat], "r");
++            if(!f_cats_rasts_conds[i_cat]) {
++                free_compute_scatts_data(fd_bands, bands_rows, n_a_bands, bands_ids, 
++                                         f_cats_rasts_conds, f_cats_rasts_conds, scatt_conds->n_a_cats);
++                G_warning(_("Unable to open category raster condtition file <%s>"), bands[band_id]);
++                return -1;
++            }
++        }
++        else
++            f_cats_rasts_conds[i_cat] = NULL;
++    }
 +
-+        left = c_int()
-+        right = c_int()
++    head_nchars =  get_cat_rast_header(region, header);
++    for(i_cat = 0; i_cat < scatt_conds->n_a_cats; i_cat++)
++        if(f_cats_rasts_conds[i_cat])
++            if( fseek(f_cats_rasts_conds[i_cat] , head_nchars, SEEK_SET) != 0) {
++                G_warning(_("Corrupted category raster conditions file (fseek failed)"));
++                return -1;
++            }
 +
-+        if Vect_get_line_areas(self.poMapInfo, ln_id, pointer(left), pointer(right)) == 1:
-+            areas = [left.value, right.value]
++    nrows = Rast_window_rows();
 +
-+            for i, a in enumerate(areas):
-+                if a > 0: 
-+                    centroid = Vect_get_area_centroid(self.poMapInfo, a)
-+                    if centroid <= 0:
-+                        continue
-+                    c = self._getCategories(centroid)
-+                    if c:
-+                        cats[i] = c
++    /* analyze bands by rows */
++    for (i_row = 0; i_row < nrows; i_row++)
++    {
++        for(i_band = 0; i_band < n_a_bands; i_band++)
++        {   
++            band_id = bands_ids[i_band];
++            Rast_get_c_row(fd_bands[i_band], bands_rows[band_id].row, i_row);
++            Rast_get_null_value_row (fd_bands[i_band], bands_rows[band_id].null_row, i_row);
++        }
++        if(compute_scatts_from_chunk_row(region, scatt_conds, f_cats_rasts_conds, bands_rows, scatts, fd_cats_rasts) == -1) 
++        {
++            free_compute_scatts_data(fd_bands, bands_rows, n_a_bands, bands_ids, fd_cats_rasts, 
++                                     f_cats_rasts_conds, scatt_conds->n_a_cats);
++            return -1;
++        }
++ 
++    }
++    free_compute_scatts_data(fd_bands, bands_rows, n_a_bands, bands_ids, 
++                             fd_cats_rasts, f_cats_rasts_conds, scatt_conds->n_a_cats); 
++    return 0;    
++}
+\ No newline at end of file
+Index: lib/imagery/scatt_sccats.c
+===================================================================
+--- lib/imagery/scatt_sccats.c	(revision 0)
++++ lib/imagery/scatt_sccats.c	(working copy)
+@@ -0,0 +1,405 @@
++/*!
++   \file lib/imagery/scatt_cat_rast.c
 +
-+        return cats
++   \brief Imagery library - functions for manipulation with scatter plot structs.
 +
-+    def _getCategories(self, ln_id):
-+        if not Vect_line_alive (self.poMapInfo, ln_id):
-+            return none
++   Copyright (C) 2013 by the GRASS Development Team
 +
-+        poCats = Vect_new_cats_struct()
-+        if Vect_read_line(self.poMapInfo, None, poCats, ln_id) < 0:
-+            Vect_destroy_cats_struct(poCats)
-+            return None
++   This program is free software under the GNU General Public License
++   (>=v2).  Read the file COPYING that comes with GRASS for details.
 +
-+        cCats = poCats.contents
++   \author Stepan Turek <stepan.turek at seznam.cz> (Mentor: Martin Landa)
++ */
 +
-+        cats = {}
-+        for j in range(cCats.n_cats):
-+            if cats.has_key(cCats.field[j]):
-+                cats[cCats.field[j]].append(cCats.cat[j])
-+            else:
-+                cats[cCats.field[j]] = [cCats.cat[j]]
-     
-+        Vect_destroy_cats_struct(poCats)
-+        return cats
++#include <grass/raster.h>
++#include <grass/imagery.h>
++#include <grass/gis.h>
 +
-+    def _getBbox(self, ln_id):
-+        if not Vect_line_alive (self.poMapInfo, ln_id):
-+            return None
++#include <stdio.h>
++#include <stdlib.h>
++#include <math.h>
++#include <string.h>
 +
-+        poPoints = Vect_new_line_struct()
-+        if Vect_read_line(self.poMapInfo, poPoints, None, ln_id) < 0:
-+            Vect_destroy_line_struct(poPoints)
-+            return []
++/*!
++   \brief Compute band ids from scatter plot id.
 +
-+        geom = self._convertGeom(poPoints)
-+        bbox = self._createBbox(geom)
-+        Vect_destroy_line_struct(poPoints)
-+        return bbox
++    Scatter plot id describes which bands defines the scatter plot.
 +
-+    def _createBbox(self, points):
++    Let say we have 3 bands, their ids are 0, 1 and 2.
++    Scatter plot with id 0 consists of band 1 (b_1_id) 0 and  band 2 (b_2_id) 1.
++    All scatter plots:
++    scatt_id b_1_id b_2_id
++    0        0      1
++    1        0      2
++    2        1      2
 +
-+        bbox = {}
-+        for pt in points:
-+            if not bbox.has_key('maxy'):
-+                bbox['maxy'] = pt[1]
-+                bbox['miny'] = pt[1]
-+                bbox['maxx'] = pt[0]
-+                bbox['minx'] = pt[0]
-+                continue
-+                
-+            if   bbox['maxy'] < pt[1]:
-+                bbox['maxy'] = pt[1]
-+            elif bbox['miny'] > pt[1]:
-+                bbox['miny'] = pt[1]
-+                
-+            if   bbox['maxx'] < pt[0]:
-+                bbox['maxx'] = pt[0]
-+            elif bbox['minx'] > pt[0]:
-+                bbox['minx'] = pt[0]
-+        return bbox
++   \param scatt_id scatter plot id
++   \param n_bands number of bands
++   \param [out] b_1_id id of band1
++   \param[out] b_2_id id of band2
 +
-+    def _convertGeom(self, poPoints):
++   \return 0
++ */
++int I_id_scatt_to_bands(const int scatt_id, const int n_bands, int * b_1_id, int * b_2_id)
++{   
++    int n_b1 = n_bands - 1;
 +
-+        Points = poPoints.contents
++    * b_1_id = (int) ((2 * n_b1 + 1 - sqrt((double)((2 * n_b1 + 1) * (2 * n_b1 + 1) - 8 * scatt_id))) / 2);
 +
-+        pts_geom = []
-+        for j in range(Points.n_points):
-+            pts_geom.append((Points.x[j], Points.y[j]))
++    * b_2_id = scatt_id - ((* b_1_id) * (2 * n_b1 + 1) - (* b_1_id) * (* b_1_id)) / 2 + (* b_1_id) + 1;
 +
-+        return pts_geom
++    return 0;
++}
 +
-     def MoveSelectedLines(self, move):
-         """!Move selected features
- 
-@@ -536,16 +725,45 @@
-         if not self._checkMap():
-             return -1
-         
-+        nsel = len(self._display.selected['ids'])
-+        if nsel < 1:
-+            return -1   
-+        
-         thresh = self._display.GetThreshold()
-         snap   = self._getSnapMode()
-         
-         poList = self._display.GetSelectedIList()
 +
-+        if self.emit_signals:
-+            old_bboxs = []
-+            old_areas_cats = []
-+            for sel_id in self._display.selected['ids']:
-+                ret = self._getLineAreaBboxCats(sel_id)
-+                if ret:
-+                    old_bboxs += ret[0]
-+                    old_areas_cats += ret[1]
-+        
-+            Vect_set_updated(self.poMapInfo, 1)
-+            n_up_lines_old = Vect_get_num_updated_lines(self.poMapInfo)
-+        
-         nlines = Vedit_move_lines(self.poMapInfo, self.popoBgMapInfo, int(self.poBgMapInfo is not None),
-                                   poList,
-                                   move[0], move[1], 0,
-                                   snap, thresh)
++/*!
++   \brief Compute scatter plot id from band ids.
 +
-         Vect_destroy_list(poList)
--        
++    See also I_id_scatt_to_bands().
 +
-+        if nlines > 0 and self.emit_signals:
-+            new_bboxs = []
-+            new_areas_cats = []
-+            n_up_lines = Vect_get_num_updated_lines(self.poMapInfo)
-+            for i in range(n_up_lines_old, n_up_lines):
-+                new_id = Vect_get_updated_line(self.poMapInfo, i)
-+                ret = self._getLineAreaBboxCats(new_id)
-+                if ret:
-+                    new_bboxs += ret[0]
-+                    new_areas_cats += ret[1]
++   \param n_bands number of bands
++   \param b_1_id id of band1
++   \param b_1_id id of band2
++   \param [out] scatt_id scatter plot id
 +
-         if nlines > 0 and self._settings['breakLines']:
-             for i in range(1, nlines):
-                 self._breakLineAtIntersection(nlines + i, None, changeset)
-@@ -553,7 +771,13 @@
-         if nlines > 0:
-             self._addChangeset()
-             self.toolbar.EnableUndo()
--        
-+            
-+            if self.emit_signals:
-+                self.featuresMoved.emit(new_bboxs = new_bboxs,
-+                                        old_bboxs = old_bboxs, 
-+                                        old_areas_cats = old_areas_cats, 
-+                                        new_areas_cats = new_areas_cats)
++   \return 0
++ */
++int I_bands_to_id_scatt(const int b_1_id, const int b_2_id, const int n_bands, int * scatt_id)
++{   
++    int n_b1 = n_bands - 1;
 +
-         return nlines
- 
-     def MoveSelectedVertex(self, point, move):
-@@ -571,12 +795,21 @@
-         
-         if len(self._display.selected['ids']) != 1:
-             return -1
--        
++    * scatt_id = (b_1_id * (2 * n_b1 + 1) - b_1_id * b_1_id) / 2 + b_2_id - b_1_id - 1;
 +
-+        # move only first found vertex in bbox 
-+        poList = self._display.GetSelectedIList()
++    return 0;
++}
 +
-+        if self.emit_signals:
-+            cList = poList.contents
-+            old_bboxs = [self._getBbox(cList.value[0])]
-+            old_areas_cats = [self._getLineAreasCategories(cList.value[0])]
++/*!
++   \brief Initialize structure for storing scatter plots data.
 +
-+            Vect_set_updated(self.poMapInfo, 1)
-+            n_up_lines_old = Vect_get_num_updated_lines(self.poMapInfo)
++   \param cats pointer to scCats struct 
++   \param n_bands number of bands
++   \param type SC_SCATT_DATA - stores scatter plots 
++   \param type SC_SCATT_CONDITIONS - stores selected areas in scatter plots
++ */
++void I_sc_init_cats(struct scCats * cats, int n_bands, int type)
++{
++    int i_cat;
 +
-         Vect_reset_line(self.poPoints)
-         Vect_append_point(self.poPoints, point[0], point[1], 0.0)
--        
--        # move only first found vertex in bbox 
--        poList = self._display.GetSelectedIList()
++    cats->type = type;
 +
-         moved = Vedit_move_vertex(self.poMapInfo, self.popoBgMapInfo, int(self.poBgMapInfo is not None),
-                                   poList, self.poPoints,
-                                   self._display.GetThreshold(type = 'selectThresh'),
-@@ -584,7 +817,17 @@
-                                   move[0], move[1], 0.0,
-                                   1, self._getSnapMode())
-         Vect_destroy_list(poList)
--        
++    cats->n_cats = 100;
++    cats->n_a_cats = 0;
 +
-+        if moved > 0 and self.emit_signals:
-+            n_up_lines = Vect_get_num_updated_lines(self.poMapInfo)
++    cats->n_bands = n_bands;
++    cats->n_scatts = (n_bands - 1) * n_bands / 2;
 +
-+            new_bboxs = []
-+            new_areas_cats = []
-+            for i in range(n_up_lines_old, n_up_lines):
-+                new_id = Vect_get_updated_line(self.poMapInfo, i)
-+                new_bboxs.append(self._getBbox(new_id))
-+                new_areas_cats.append(self._getLineAreasCategories(new_id))
++    cats->cats_arr = (struct scScatts **) G_malloc(cats->n_cats * sizeof(struct scScatts *));
++    memset(cats->cats_arr, 0, cats-> n_cats * sizeof(struct scScatts *));
 +
-         if moved > 0 and self._settings['breakLines']:
-             self._breakLineAtIntersection(Vect_get_num_lines(self.poMapInfo),
-                                           None)
-@@ -592,7 +835,13 @@
-         if moved > 0:
-             self._addChangeset()
-             self.toolbar.EnableUndo()
--        
++    cats->cats_ids = (int *)  G_malloc(cats->n_cats * sizeof(int));
++    cats->cats_idxs =(int *)  G_malloc(cats->n_cats * sizeof(int));
 +
-+            if self.emit_signals:
-+                self.vertexMoved.emit(new_bboxs = new_bboxs,  
-+                                      new_areas_cats = new_areas_cats, 
-+                                      old_areas_cats = old_areas_cats, 
-+                                      old_bboxs = old_bboxs)
++    for(i_cat = 0; i_cat < cats->n_cats; i_cat++)
++        cats->cats_idxs[i_cat] = -1;
 +
-         return moved
- 
-     def AddVertex(self, coords):
-@@ -681,6 +930,10 @@
-             self._error.ReadLine(line)
-             return -1
-         
-+        if self.emit_signals:
-+            old_bboxs = [self._getBbox(line)]
-+            old_areas_cats = [self._getLineAreasCategories(line)]
++    return;
++}
 +
-         # build feature geometry
-         Vect_reset_line(self.poPoints)
-         for p in coords:
-@@ -696,6 +949,9 @@
-         
-         newline = Vect_rewrite_line(self.poMapInfo, line, ltype,
-                                     self.poPoints, self.poCats)
-+        if newline > 0 and self.emit_signals:
-+            new_geom = [self._getBbox(newline)]
-+            new_areas_cats = [self._getLineAreasCategories(newline)]
-         
-         if newline > 0 and self._settings['breakLines']:
-             self._breakLineAtIntersection(newline, None)
-@@ -703,7 +959,13 @@
-         if newline > 0:
-             self._addChangeset()
-             self.toolbar.EnableUndo()
--        
++/*!
++   \brief Free data of struct scCats, the structure itself remains alocated.
++
++   \param cats pointer to existing scCats struct
++ */
++void I_sc_free_cats(struct scCats * cats)
++{
++    int i_cat;
++
++    for(i_cat = 0; i_cat < cats->n_a_cats; i_cat++)
++    {        
++        if(cats->cats_arr[i_cat])
++        {   
++            G_free(cats->cats_arr[i_cat]->scatt_idxs);
++            G_free(cats->cats_arr[i_cat]->scatts_bands);
++            G_free(cats->cats_arr[i_cat]->scatts_arr);
++            G_free(cats->cats_arr[i_cat]);
++        }
++    }
++
++    G_free(cats->cats_ids);
++    G_free(cats->cats_idxs);
++    G_free(cats->cats_arr);
++
++    cats->n_cats = 0;
++    cats->n_a_cats = 0;
++    cats->n_bands = 0;
++    cats->n_scatts = 0;
++    cats->type = -1;
++
++    return;
++}
++
++#if 0
++void I_sc_get_active_categories(int * a_cats_ids, int * n_a_cats, struct scCats * cats)
++{
++    a_cats_ids = cats->cats_ids;
++    * n_a_cats = cats->n_a_cats;
++}
++#endif
++
++/*!
++   \brief Add category.
 +    
-+            if self.emit_signals:
-+                self.lineEdited.emit(old_bboxs = old_bboxs, 
-+                                     old_areas_cats = old_areas_cats, 
-+                                     new_bboxs = new_bboxs, 
-+                                     new_areas_cats = new_areas_cats)
++    Category represents group of scatter plots.
 +
-         return newline
++   \param cats pointer to scCats struct
++
++   \return assigned category id (starts with 0)
++   \return -1 if maximum nuber of categories was reached
++ */
++int I_sc_add_cat(struct scCats * cats)
++{
++    int i_scatt, i_cat_id, cat_id;
++    int n_a_cats = cats->n_a_cats;
++
++    if(cats->n_a_cats >= cats->n_cats)
++        return -1;
++
++    for(i_cat_id = 0; i_cat_id < cats->n_cats; i_cat_id++)
++        if(cats->cats_idxs[i_cat_id] < 0) {
++            cat_id = i_cat_id;
++            break;
++        }
++
++    cats->cats_ids[n_a_cats] = cat_id;
++    cats->cats_idxs[cat_id] = n_a_cats;
++    
++    cats->cats_arr[n_a_cats] = (struct scScatts *) G_malloc(sizeof(struct scScatts));
++
++    cats->cats_arr[n_a_cats]->scatts_arr = (struct scdScattData **) G_malloc(cats->n_scatts * sizeof(struct scdScattData *));
++    memset((cats->cats_arr[n_a_cats]->scatts_arr), 0, cats->n_scatts * sizeof(struct scdScattData *));
++    
++    cats->cats_arr[n_a_cats]->n_a_scatts = 0;
++
++    cats->cats_arr[n_a_cats]->scatts_bands = (int *) G_malloc(cats->n_scatts * 2 * sizeof(int));
++     
++    cats->cats_arr[n_a_cats]->scatt_idxs = (int *) G_malloc(cats->n_scatts * sizeof(int));
++    for(i_scatt = 0; i_scatt < cats->n_scatts; i_scatt++)
++        cats->cats_arr[n_a_cats]->scatt_idxs[i_scatt] = -1;
++    
++    ++cats->n_a_cats;
++
++    return cat_id;
++}
++
++#if 0
++int I_sc_delete_cat(struct scCats * cats, int cat_id)
++{
++    int cat_idx, i_cat;
++
++    if(cat_id < 0 || cat_id >= cats->n_cats)
++        return -1;
++
++    cat_idx = cats->cats_idxs[cat_id];
++    if(cat_idx < 0)
++        return -1;
++
++    G_free(cats->cats_arr[cat_idx]->scatt_idxs);
++    G_free(cats->cats_arr[cat_idx]->scatts_bands);
++    G_free(cats->cats_arr[cat_idx]->scatts_arr);
++    G_free(cats->cats_arr[cat_idx]);
++
++    for(i_cat = cat_idx; i_cat < cats->n_a_cats - 1; i_cat++)
++    {
++        cats->cats_arr[i_cat] = cats->cats_arr[i_cat + 1];
++        cats->cats_ids[i_cat] = cats->cats_ids[i_cat + 1];
++    }
++    cats->cats_idxs[cat_id] = -1; 
++
++    --cats->n_a_cats;
++    
++    return 0;
++}
++#endif
++
++/*!
++   \brief Insert scatter plot data .
++    Inserted scatt_data struct must have same type as cats struct (SC_SCATT_DATA or SC_SCATT_CONDITIONS).
++
++   \param cats pointer to scCats struct
++   \param cat_id id number of category.
++   \param scatt_id id number of scatter plot.
++
++   \return  0 on success
++   \return -1 on failure
++ */
++int I_sc_insert_scatt_data(struct scCats * cats, struct scdScattData * scatt_data, int cat_id, int scatt_id)
++{
++    int band_1, band_2, cat_idx, n_a_scatts;
++    struct scScatts * scatts;
++
++    if(cat_id < 0 || cat_id >= cats->n_cats)
++        return -1;
++
++    cat_idx = cats->cats_idxs[cat_id];
++    if(cat_idx < 0)
++        return -1;
++
++    if(scatt_id < 0 && scatt_id >= cats->n_scatts)
++        return -1;
++
++    scatts = cats->cats_arr[cat_idx];
++    if(scatts->scatt_idxs[scatt_id] >= 0)
++        return -1;
++
++    if(!scatt_data->b_conds_arr && cats->type == SC_SCATT_CONDITIONS)
++        return -1;
++
++    if(!scatt_data->scatt_vals_arr && cats->type == SC_SCATT_DATA)
++        return -1;
++
++    n_a_scatts = scatts->n_a_scatts;
++
++    scatts->scatt_idxs[scatt_id] = n_a_scatts;
++
++    I_id_scatt_to_bands(scatt_id, cats->n_bands, &band_1, &band_2);
++
++    scatts->scatts_bands[n_a_scatts * 2] = band_1;
++    scatts->scatts_bands[n_a_scatts * 2 + 1] = band_2;
++
++    scatts->scatts_arr[n_a_scatts] = scatt_data;
++    ++scatts->n_a_scatts;
++
++    return 0;
++}
++
++#if 0
++int I_sc_remove_scatt_data(struct scCats * cats, struct scdScattData * scatt_data, int cat_id, int scatt_id)
++{
++    int cat_idx, scatt_idx, n_init_scatts, i_scatt;
++    struct scScatts * scatts;
++
++    if(cat_id < 0 && cat_id >= cats->n_cats)
++        return -1;
++
++    cat_idx = cats->cats_idxs[cat_id];
++    if(cat_idx < 0)
++        return -1;
++
++    if(scatt_id < 0 || scatt_id >= cats->n_scatts)
++        return -1;
++
++    scatts = cats->cats_arr[cat_idx];
++    if(scatts->scatt_idxs[scatt_id] < 0)
++        return -1;
++
++    scatt_data = scatts->scatts_arr[scatt_idx];
++
++    for(i_scatt = scatt_idx; i_scatt < scatts->n_a_scatts - 1; i_scatt++)
++    {
++        scatts->scatts_arr[i_scatt] = scatts->scatts_arr[i_scatt + 1];
++        scatts->scatts_bands[i_scatt * 2] = scatts->scatts_bands[(i_scatt + 1)* 2];
++        scatts->scatts_bands[i_scatt * 2 + 1] = scatts->scatts_bands[(i_scatt + 1) * 2 + 1];
++    }
++    scatts->scatts_arr[scatts->n_a_scatts] = NULL;
++
++    scatts->scatt_idxs[scatt_id] = -1;
++
++    scatt_data = scatts->scatts_arr[scatt_id];
++    scatts->n_a_scatts--;
++
++    return 0;
++}
++
++int I_sc_set_value(struct scCats * cats, int cat_id, int scatt_id, int value_idx, int value)
++{
++    int n_a_scatts = cats->cats_arr[cat_id]->n_a_scatts;
++    int cat_idx, scatt_idx, ret;
++
++    cat_idx = cats->cats_idxs[cat_id];
++    if(cat_idx < 0)
++        return -1;
++    
++    if(cats->cats_arr[cat_idx]->scatt_idxs[scatt_id] < 0)
++        return -1;
++
++    cat_idx = cats->cats_idxs[cat_id];
++    scatt_idx = cats->cats_arr[cat_idx]->scatt_idxs[scatt_id];
++
++    I_scd_set_value(cats->cats_arr[cat_idx]->scatts_arr[scatt_idx], value_idx, value);
++
++    return 0;
++}
++#endif
++
++/*!
++   \brief Insert scatter plot data.
++    
++   \param scatt_data pointer to existing struct scdScattData
++   \param type SC_SCATT_DATA for scatter plots or SC_SCATT_CONDITIONS for selected areas in scatter plot
++   \param n_vals number of data values
++   \param data array of values (unsigned char for SC_SCATT_CONDITIONS, unsigned int for SC_SCATT_DATA)
++ */
++void I_scd_init_scatt_data(struct scdScattData * scatt_data, int type, int n_vals, void * data)
++{
++    scatt_data->n_vals = n_vals;
++
++    if(type == SC_SCATT_DATA)
++    {   
++        if(data)
++            scatt_data->scatt_vals_arr = (unsigned int *) data;
++        else {
++            scatt_data->scatt_vals_arr = (unsigned int *) G_malloc(n_vals * sizeof(unsigned int));
++            memset(scatt_data->scatt_vals_arr, 0, n_vals * sizeof(unsigned int)); 
++        }
++        scatt_data->b_conds_arr = NULL;
++    }
++    else if(type == SC_SCATT_CONDITIONS)
++    {
++        if(data)
++            scatt_data->b_conds_arr = (unsigned char *) data;
++        else {
++            scatt_data->b_conds_arr = (unsigned char *) G_malloc(n_vals * sizeof(unsigned char));
++            memset(scatt_data->b_conds_arr, 0, n_vals * sizeof(unsigned char));
++        }
++        scatt_data->scatt_vals_arr = NULL;
++    }
++
++    return;
++}
++
++
++#if 0
++void I_scd_get_range_min_max(struct scdScattData * scatt_data, CELL * band_1_min, CELL * band_1_max, CELL * band_2_min, CELL * band_2_max)
++{
++
++    Rast_get_range_min_max(&(scatt_data->band_1_range), band_1_min, band_2_min);
++    Rast_get_range_min_max(&(scatt_data->band_2_range), band_2_min, band_2_max);
++
++    return;
++}
++s
++void * I_scd_get_data_ptr(struct scdScattData * scatt_data)
++{
++    if(!scatt_data->b_conds_arr)
++        return scatt_data->b_conds_arr;
++    else if(!scatt_data->scatt_vals_arr)
++        return scatt_data->scatt_vals_arr;
++
++    return NULL;
++}
++
++int I_scd_set_value(struct scdScattData * scatt_data, unsigned int val_idx, unsigned int val)
++{
++    if(val_idx < 0 && val_idx >  scatt_data->n_vals)
++        return -1;
++
++    if(scatt_data->b_conds_arr)
++        scatt_data->b_conds_arr[val_idx] = val;
++    else if(scatt_data->scatt_vals_arr)
++        scatt_data->scatt_vals_arr[val_idx] = val;
++    else
++        return -1;
++
++    return 0;
++}
++#endif
+Index: include/imagery.h
+===================================================================
+--- include/imagery.h	(revision 57599)
++++ include/imagery.h	(working copy)
+@@ -135,6 +135,56 @@
+     
+ } IClass_statistics;
  
-     def FlipLine(self):
-@@ -1514,6 +1776,16 @@
-             return 0
-         
-         poList  = self._display.GetSelectedIList()
++/* Scatter Plot backend */
 +
-+        if self.emit_signals:
-+            cList = poList.contents
-+            
-+            old_bboxs = [self._getBbox(cList.value[0])]
-+            old_areas_cats = [self._getLineAreasCategories(cList.value[0])]
++#define SC_SCATT_DATA          0 
++#define SC_SCATT_CONDITIONS    1
 +
-+            Vect_set_updated(self.poMapInfo, 1)
-+            n_up_lines_old = Vect_get_num_updated_lines(self.poMapInfo)
 +
-         Vect_reset_line(self.poPoints)
-         Vect_append_point(self.poPoints, coords[0], coords[1], 0.0)
-         
-@@ -1525,15 +1797,35 @@
-         else:
-             ret = Vedit_remove_vertex(self.poMapInfo, poList,
-                                       self.poPoints, thresh)
++/*! Holds list of all catagories. 
++    It can contain selected areas for scatter plots (SC_SCATT_CONDITIONS type) or computed scatter plots (SC_SCATT_DATA type).
++*/
++struct scCats 
++{
++    int type;        /*!< SC_SCATT_DATA -> computed scatter plots, SC_SCATT_CONDITIONS -> set conditions for scatter plots to be computed*/
 +
-         Vect_destroy_list(poList)
++    int n_cats;      /*!< number of alocated categories */
++    
++    int n_bands;     /*!< number of analyzed bands */
++    int n_scatts;    /*!< number of possible scattter plot which can be created from bands */
 +
-+        if ret > 0 and self.emit_signals:
-+            new_bboxs = []
-+            new_areas_cats = []
++    int   n_a_cats;  /*!< number of used/active categories */
++    int * cats_ids;  /*!< (cat_idx->cat_id) array index is internal idx (position in cats_arr) and id is saved in it's position*/
++    int * cats_idxs; /*!< (cat_id->cat_idx) array index is id and internal idx is saved in it's position*/
 +
-+            n_up_lines = Vect_get_num_updated_lines(self.poMapInfo)
-+            for i in range(n_up_lines_old, n_up_lines):
-+                new_id = Vect_get_updated_line(self.poMapInfo, i)
-+                new_areas_cats.append(self._getLineAreasCategories(new_id))
-+                new_bboxs.append(self._getBbox(new_id))
-         
-         if not add and ret > 0 and self._settings['breakLines']:
-             self._breakLineAtIntersection(Vect_get_num_lines(self.poMapInfo),
-                                           None)
--        
++    struct scScatts ** cats_arr; /*!< array of pointers to struct scScatts */
++};
 +
-         if ret > 0:
-             self._addChangeset()
--                
 +
-+        if ret > 0 and self.emit_signals:
-+            if add:
-+                self.vertexAdded.emit(old_bboxs = old_bboxs, new_bboxs = new_bboxs)
-+            else:
-+                self.vertexRemoved.emit(old_bboxs = old_bboxs, 
-+                                        new_bboxs = new_bboxs,
-+                                        old_areas_cats = old_areas_cats,
-+                                        new_areas_cats = new_areas_cats)
++/*! Holds list of all scatter plots, which belongs to category. 
++*/
++struct scScatts
++{
++    int n_a_scatts;     /*!< number of used/active scatter plots*/
++    
++    int * scatts_bands; /*!< array of bands for which represents the scatter plots, 
++                             every scatter plot has assigned two bads (size of array is n_a_scatts * 2)*/
++    int * scatt_idxs;   /*!< (scatt_id->scatt_idx) internal idx of the scatter plot (position in scatts_arr)*/
 +
-         return 1
-     
-     def GetLineCats(self, line):
-Index: gui/wxpython/vdigit/toolbars.py
++    struct scdScattData ** scatts_arr; /*!< array of pointers to scdScattData */
++};
++
++/*! Holds scatter plot data.
++*/
++struct scdScattData
++{
++    int n_vals; /*!< Number of values in scatter plot. */
++
++    unsigned char  * b_conds_arr; /*!< array of selected areas (used for SC_SCATT_CONDITIONS type) otherwise NULL */
++    unsigned int  * scatt_vals_arr; /*!< array of computed areas (used for SC_SCATT_DATA type) otherwise NULL */
++};
++
++
+ #define SIGNATURE_TYPE_MIXED 1
+ 
+ #define GROUPFILE "CURGROUP"
+Index: include/defs/vedit.h
 ===================================================================
---- gui/wxpython/vdigit/toolbars.py	(revision 57581)
-+++ gui/wxpython/vdigit/toolbars.py	(working copy)
-@@ -17,6 +17,7 @@
- import wx
+--- include/defs/vedit.h	(revision 57599)
++++ include/defs/vedit.h	(working copy)
+@@ -33,6 +33,8 @@
+ int Vedit_merge_lines(struct Map_info *, struct ilist *);
  
- from grass.script import core as grass
-+from grass.pydispatch.signal import Signal
+ /* move.c */
++int Vedit_move_areas(struct Map_info *, struct Map_info **, int,
++		     		 struct ilist *, double, double, double, int, double);
+ int Vedit_move_lines(struct Map_info *, struct Map_info **, int,
+ 		     struct ilist *, double, double, double, int, double);
  
- from gui_core.toolbars  import BaseToolbar, BaseIcons
- from gui_core.dialogs   import CreateNewVector
-@@ -42,6 +43,8 @@
-         self.digit         = None
-         self._giface       = giface
-         
-+        self.editingStarted = Signal("VDigitToolbar.editingStarted")
-+
-         # currently selected map layer for editing (reference to MapLayer instance)
-         self.mapLayer = None
-         # list of vector layers from Layer Manager (only in the current mapset)
-@@ -860,6 +863,7 @@
-             alpha = int(opacity * 255)
-             self.digit.GetDisplay().UpdateSettings(alpha = alpha)
-         
-+        self.editingStarted.emit(vectMap = mapLayer.GetName(), digit = self.digit)
-         return True
+Index: include/defs/imagery.h
+===================================================================
+--- include/defs/imagery.h	(revision 57599)
++++ include/defs/imagery.h	(working copy)
+@@ -110,6 +110,23 @@
+ FILE *I_fopen_subgroup_ref_new(const char *, const char *);
+ FILE *I_fopen_subgroup_ref_old(const char *, const char *);
  
-     def StopEditing(self):
-Index: gui/wxpython/iclass/dialogs.py
-===================================================================
---- gui/wxpython/iclass/dialogs.py	(revision 57581)
-+++ gui/wxpython/iclass/dialogs.py	(working copy)
-@@ -333,13 +333,19 @@
-         toolbar.SetCategories(catNames = catNames, catIdx = cats)
-         if name in catNames:
-             toolbar.choice.SetStringSelection(name)
-+            cat = toolbar.GetSelectedCategoryIdx()
-         elif catNames:
-             toolbar.choice.SetSelection(0)
--            
-+            cat = toolbar.GetSelectedCategoryIdx()
-+        else:
-+            cat = None
++/* scatt_plt.c */
++void I_sc_init_cats(struct scCats *, int, int);
++void I_sc_free_cats(struct scCats *);
++int I_sc_add_cat(struct scCats *);
++int I_sc_insert_scatt_data(struct scCats *, struct scdScattData *, int, int);
 +
-         if toolbar.choice.IsEmpty():
-             toolbar.EnableControls(False)
-         else:
-             toolbar.EnableControls(True)
++void I_scd_init_scatt_data(struct scdScattData *, int, int, void *);
 +
-+        self.mapWindow.CategoryChanged(cat)
-         # don't forget to update maps, histo, ...
-         
-     def GetSelectedIndices(self, state =  wx.LIST_STATE_SELECTED):
++int I_compute_scatts(struct Cell_head *, struct scCats *, const char **, 
++	                 const char **, int, struct scCats *, const char **);
++
++int I_create_cat_rast(struct Cell_head *, const char *);
++int I_insert_patch_to_cat_rast(const char *, struct Cell_head *,  const char *);
++
++int I_id_scatt_to_bands(const int, const int, int *, int *);
++int I_bands_to_id_scatt(const int, const int, const int, int *);
++
+ /* sig.c */
+ int I_init_signatures(struct Signature *, int);
+ int I_new_signature(struct Signature *);
 Index: gui/wxpython/iclass/toolbars.py
 ===================================================================
---- gui/wxpython/iclass/toolbars.py	(revision 57581)
+--- gui/wxpython/iclass/toolbars.py	(revision 57599)
 +++ gui/wxpython/iclass/toolbars.py	(working copy)
 @@ -46,9 +46,7 @@
          'importAreas' : MetaIcon(img = 'layer-import',
@@ -712,7 +1315,7 @@
                                        self.parent.OnCategoryManager),
 Index: gui/wxpython/iclass/frame.py
 ===================================================================
---- gui/wxpython/iclass/frame.py	(revision 57581)
+--- gui/wxpython/iclass/frame.py	(revision 57599)
 +++ gui/wxpython/iclass/frame.py	(working copy)
 @@ -64,6 +64,8 @@
                                 IClassExportAreasDialog, IClassMapDialog
@@ -752,7 +1355,7 @@
      def RemoveTempVector(self):
          """!Removes temporary vector map with training areas"""
          ret = RunCommand(prog = 'g.remove',
-@@ -477,7 +483,7 @@
+@@ -477,21 +483,47 @@
          
          self.Render(self.GetFirstWindow())
          
@@ -760,18 +1363,51 @@
 +    def AddBands(self):
          """!Add imagery group"""
          dlg = IClassGroupDialog(self, group = self.group)
-         if dlg.ShowModal() == wx.ID_OK:
-@@ -488,7 +494,8 @@
+-        if dlg.ShowModal() == wx.ID_OK:
+-            self.SetGroup(dlg.GetGroup())
++        
++        while True:
++            if dlg.ShowModal() == wx.ID_OK:
++                if self.SetGroup(dlg.GetGroup()):
++                    break
++            else: 
++                break
++        
+         dlg.Destroy()
+         
+     def SetGroup(self, name):
          """!Set imagery group"""
          group = grass.find_file(name = name, element = 'group')
          if group['name']:
--            self.group = group['name']
-+           self.group = group['name']
-+           self.groupSet.emit(group = group['name'])
++            if not self.GroupData(group['name']):
++                GError(_("No data found in group <%s>.\n" \
++                         "Please create subgroup with same name as group and add the data there.") \
++                           % name, parent = self)
++                return False
+             self.group = group['name']
++            self.groupSet.emit(group = group['name'])
          else:
              GError(_("Group <%s> not found") % name, parent = self)
-     
-@@ -768,17 +775,20 @@
+-    
++            return False
++
++        return True
++
++    def GroupData(self, group):
++        res = RunCommand('i.group',
++                         flags = 'g',
++                         group = group, subgroup = group,
++                         read = True).strip()
++        bands = None
++        if res.split('\n')[0]:
++            bands = res.split('\n')
++            
++        return bands
++
+     def OnImportAreas(self, event):
+         """!Import training areas"""
+         # check if we have any changes
+@@ -768,17 +800,20 @@
          
          Updates number of stddev, histograms, layer in preview display. 
          """
@@ -802,7 +1438,7 @@
          
      def DeleteAreas(self, cats):
          """!Removes all training areas of given categories
-@@ -1105,27 +1115,6 @@
+@@ -1105,27 +1140,6 @@
          self.GetFirstWindow().SetModePointer()
          self.GetSecondWindow().SetModePointer()
  
@@ -832,7 +1468,7 @@
      
 Index: gui/wxpython/iclass/plots.py
 ===================================================================
---- gui/wxpython/iclass/plots.py	(revision 57581)
+--- gui/wxpython/iclass/plots.py	(revision 57599)
 +++ gui/wxpython/iclass/plots.py	(working copy)
 @@ -19,6 +19,7 @@
  import wx.lib.plot as plot
@@ -979,1430 +1615,36 @@
      def DrawCoincidencePlots(self):
          """!Draw coincidence plots"""
          for bandIdx in range(len(self.bandList)):
-Index: gui/wxpython/mapdisp/frame.py
+Index: gui/wxpython/iclass/dialogs.py
 ===================================================================
---- gui/wxpython/mapdisp/frame.py	(revision 57581)
-+++ gui/wxpython/mapdisp/frame.py	(working copy)
-@@ -225,6 +225,7 @@
-         #
-         self.dialogs = {}
-         self.dialogs['attributes'] = None
-+        self.dialogs['scatt_plot'] = None
-         self.dialogs['category'] = None
-         self.dialogs['barscale'] = None
-         self.dialogs['legend'] = None
-@@ -1168,6 +1169,19 @@
-         """!Returns toolbar with zooming tools"""
-         return self.toolbars['map']
- 
-+    def OnScatterplot2(self, event):
-+        """!Init interactive scatterplot tools
-+        """
-+        if self.dialogs['scatt_plot']:
-+            self.dialogs['scatt_plot'].Raise()
-+            return
+--- gui/wxpython/iclass/dialogs.py	(revision 57599)
++++ gui/wxpython/iclass/dialogs.py	(working copy)
+@@ -333,13 +333,19 @@
+         toolbar.SetCategories(catNames = catNames, catIdx = cats)
+         if name in catNames:
+             toolbar.choice.SetStringSelection(name)
++            cat = toolbar.GetSelectedCategoryIdx()
+         elif catNames:
+             toolbar.choice.SetSelection(0)
+-            
++            cat = toolbar.GetSelectedCategoryIdx()
++        else:
++            cat = None
 +
-+        from scatt_plot.dialogs import ScattPlotMainDialog
-+        self.dialogs['scatt_plot'] = ScattPlotMainDialog(parent=self, giface=self._giface)
-+        
-+        self.dialogs['scatt_plot'].CenterOnScreen()
-+        self.dialogs['scatt_plot'].Show()
+         if toolbar.choice.IsEmpty():
+             toolbar.EnableControls(False)
+         else:
+             toolbar.EnableControls(True)
 +
-     def OnVNet(self, event):
-         """!Dialog for v.net* modules 
-         """
-Index: gui/wxpython/mapdisp/toolbars.py
-===================================================================
---- gui/wxpython/mapdisp/toolbars.py	(revision 57581)
-+++ gui/wxpython/mapdisp/toolbars.py	(working copy)
-@@ -239,7 +239,8 @@
-                       (MapIcons["scatter"],     self.parent.OnScatterplot),
-                       (MapIcons["histogram"],   self.parent.OnHistogramPyPlot),
-                       (BaseIcons["histogramD"], self.parent.OnHistogram),
--                      (MapIcons["vnet"],        self.parent.OnVNet)))
-+                      (MapIcons["vnet"],        self.parent.OnVNet),
-+                      (MapIcons["scatter"],     self.parent.OnScatterplot2)))
++        self.mapWindow.CategoryChanged(cat)
+         # don't forget to update maps, histo, ...
          
-     def OnDecoration(self, event):
-         """!Decorations overlay menu
-Index: gui/wxpython/scatt_plot/plots.py
-===================================================================
---- gui/wxpython/scatt_plot/plots.py	(revision 0)
-+++ gui/wxpython/scatt_plot/plots.py	(working copy)
-@@ -0,0 +1,695 @@
-+"""!
-+ at package scatt_plot.dialogs
-+
-+ at brief Ploting widgets.
-+
-+Classes:
-+
-+(C) 2013 by the GRASS Development Team
-+
-+This program is free software under the GNU General Public License
-+(>=v2). Read the file COPYING that comes with GRASS for details.
-+
-+ at author Stepan Turek <stepan.turek seznam.cz> (mentor: Martin Landa)
-+"""
-+import wx
-+import numpy as np
-+
-+#TODO testing
-+import time
-+from multiprocessing import Process, Queue
-+
-+#TODO
-+#from numpy.lib.stride_tricks import as_strided
-+from copy import deepcopy
-+
-+try:
-+    import matplotlib
-+    matplotlib.use('WXAgg')
-+    from matplotlib.figure import Figure
-+    from matplotlib.backends.backend_wxagg import \
-+    FigureCanvasWxAgg as FigCanvas, \
-+    NavigationToolbar2WxAgg as NavigationToolbar
-+    from matplotlib.lines import Line2D
-+    from matplotlib.artist import Artist
-+    from matplotlib.mlab import dist_point_to_segment
-+    from matplotlib.patches import Polygon, Ellipse
-+    import matplotlib.image as mi
-+    import matplotlib.colors as mcolors
-+    import matplotlib.cbook as cbook
-+except ImportError as e:
-+    raise ImportError(_("Unable to import matplotlib (try to install it).\n%s") % e)
-+
-+
-+import grass.script as grass
-+from grass.pydispatch.signal import Signal
-+
-+#class PlotImages()?
-+
-+class ScatterPlotWidget(wx.Panel):
-+    def __init__(self, parent, scatt_id, scatt_mgr,
-+                 id = wx.ID_ANY):
-+
-+        wx.Panel.__init__(self, parent, id)
-+
-+        self.parent = parent
-+        self.full_extend = None
-+
-+        self._createWidgets()
-+        self._doLayout()
-+        self.scatt_id = scatt_id
-+        self.scatt_mgr = scatt_mgr
-+        self.press_coords = None
-+
-+        self.cidpress = None
-+        self.cidrelease = None
-+
-+        self.SetSize((200, 100))
-+        self.Layout()
-+
-+        self.base_scale = 2.0
-+        self.Bind(wx.EVT_CLOSE,lambda event : self.CleanUp())
-+
-+        self.plotClosed = Signal("ScatterPlotWidget.plotClosed")
-+
-+        self.contex_menu = ScatterPlotContextMenu(plot = self)
-+
-+        self.ciddscroll = None
-+
-+    def _createWidgets(self):
-+
-+        # Create the mpl Figure and FigCanvas objects. 
-+        # 5x4 inches, 100 dots-per-inch
-+        #
-+        self.dpi = 100
-+        self.fig = Figure((1.0, 1.0), dpi=self.dpi)
-+        self.canvas = FigCanvas(self, -1, self.fig)
-+
-+        self.axes = self.fig.add_axes([0,0,1,1])
-+
-+        pol = Polygon(list(zip([0], [0])), animated=True)
-+        self.axes.add_patch(pol)
-+        self.polygon_drawer = PolygonDrawer(self.axes, pol = pol, empty_pol = True)
-+
-+        self.toolbar = NavigationToolbar(self.canvas)
-+
-+    def ZoomToExtend(self):
-+        if self.full_extend:
-+            self.axes.axis(self.full_extend)
-+            self.canvas.draw()
-+
-+    def SetMode(self, mode):
-+        self._deactivateMode()
-+        if mode == 'zoom':
-+            self.ciddscroll = self.canvas.mpl_connect('scroll_event', self.zoom)
-+        elif mode == 'pan':
-+            self.toolbar.pan()
-+
-+    def GetCoords(self):
-+        return self.polygon_drawer.GetCoords()
-+
-+    def SetEmpty(self):
-+        return self.polygon_drawer.SetEmpty()
-+
-+    def SetEditingMode(self, mode):
-+        self.polygon_drawer.SetMode(mode)
-+
-+    def _deactivateMode(self):
-+
-+        #TODO do own pan
-+        if self.toolbar._active == "PAN":
-+            self.toolbar.pan()
-+
-+        if self.ciddscroll:
-+            self.canvas.mpl_disconnect(self.ciddscroll)
-+
-+        self._stopCategoryEdit()
-+
-+
-+    def OnPress(self, event):
-+        'on button press we will see if the mouse is over us and store some data'
-+        if not event.inaxes:
-+            return
-+            
-+        if event.xdata and event.ydata:
-+            self.press_coords = { 'x' : event.xdata, 'y' : event.ydata}
-+        else:
-+            self.press_coords = None
-+
-+    def OnRelease(self, event):
-+        'on release we reset the press data'
-+
-+        if event.xdata and event.ydata and self.press_coords:
-+
-+            bbox = {}
-+            if event.ydata > self.press_coords['y']:
-+                bbox['up_y'] = event.ydata
-+                bbox['btm_y'] = self.press_coords['y']
-+            else:
-+                bbox['up_y'] = self.press_coords['y']
-+                bbox['btm_y'] = event.ydata
-+
-+            if event.xdata > self.press_coords['x']:
-+                bbox['up_x'] = event.xdata
-+                bbox['btm_x'] = self.press_coords['x']
-+            else:
-+                bbox['up_x'] = self.press_coords['x']
-+                bbox['btm_x'] = event.xdata
-+
-+            self.scatt_mgr.SetEditCatData(self.scatt_id, bbox)
-+
-+    def _stopCategoryEdit(self):
-+        'disconnect all the stored connection ids'
-+
-+        if self.cidpress:
-+            self.canvas.mpl_disconnect(self.cidpress)
-+        if self.cidrelease:
-+            self.canvas.mpl_disconnect(self.cidrelease)
-+        #self.canvas.mpl_disconnect(self.cidmotion)
-+
-+    def _doLayout(self):
-+        
-+        self.main_sizer = wx.BoxSizer(wx.VERTICAL)
-+        self.main_sizer.Add(self.canvas, 1, wx.LEFT | wx.TOP | wx.GROW)
-+        #self.main_sizer.Add(self.toolbar, 0, wx.EXPAND)        
-+        self.SetSizer(self.main_sizer)
-+        self.main_sizer.Fit(self)
-+    
-+    def Plot(self, scatts, ellipses, styles):
-+        """ Redraws the figure
-+        """
-+        self.axes.clear()
-+
-+        callafter_list = []
-+
-+        q = Queue()
-+        p = Process(target=MergeImg, args=(scatts, styles, q))
-+        p.start()
-+        merged_img, self.full_extend = q.get()
-+        p.join()
-+
-+        img = imshow(self.axes, merged_img,
-+                     origin = 'lower',
-+                     extent = self.full_extend, 
-+                     interpolation='nearest',
-+                     aspect = "auto")
-+
-+        callafter_list.append([self.axes.draw_artist, [img]])
-+        callafter_list.append([grass.try_remove, [merged_img.filename]])
-+
-+        for cat_id, e in ellipses.iteritems():
-+            if cat_id == 0 or not e:
-+                continue
-+
-+            colors = styles[cat_id]['color'].split(":")
-+            ellip = Ellipse(xy=e['pos'], width=e['width'], height=e['height'], angle=e['theta'], edgecolor = "r", facecolor = 'None')
-+            self.axes.add_artist(ellip)
-+            callafter_list.append([self.axes.draw_artist, [ellip]])
-+
-+        callafter_list.append([self.fig.canvas.blit, []])
-+
-+        wx.CallAfter(lambda : self.CallAfter(callafter_list))
-+    
-+    def CallAfter(self, funcs_list):
-+        while funcs_list: 
-+            fcn, args = funcs_list.pop(0) 
-+            fcn(*args) 
-+
-+        self.canvas.draw()
-+
-+    def CleanUp(self):
-+        self.plotClosed.emit(scatt_id = self.scatt_id)
-+        self.Destroy()
-+
-+    def zoom(self, event):
-+        # get the current x and y limits
-+        if not event.inaxes:
-+            return
-+        # tcaswell
-+        # http://stackoverflow.com/questions/11551049/matplotlib-plot-zooming-with-scroll-wheel
-+        cur_xlim = self.axes.get_xlim()
-+        cur_ylim = self.axes.get_ylim()
-+        cur_xrange = (cur_xlim[1] - cur_xlim[0])*.5
-+        cur_yrange = (cur_ylim[1] - cur_ylim[0])*.5
-+        xdata = event.xdata
-+        ydata = event.ydata 
-+        if event.button == 'up':
-+            scale_factor = 1/self.base_scale
-+        elif event.button == 'down':
-+            scale_factor = self.base_scale
-+        else:
-+            scale_factor = 1
-+
-+        self.axes.set_xlim([xdata - cur_xrange*scale_factor,
-+                           xdata + cur_xrange*scale_factor])
-+        self.axes.set_ylim([ydata - cur_yrange*scale_factor,
-+                            ydata + cur_yrange*scale_factor])
-+        
-+        self.canvas.draw()
-+         
-+class ScatterPlotContextMenu:
-+    def __init__(self, plot):
-+
-+        self.plot = plot
-+        self.canvas = plot.canvas
-+        self.cidpress = self.canvas.mpl_connect(
-+            'button_press_event', self.ContexMenu)
-+   
-+    def ContexMenu(self, event):
-+        if not event.inaxes:
-+            return
-+
-+        if event.button == 3:
-+            menu = wx.Menu()       
-+            menu_items = [["zoom_to_extend", _("Zoom to scatter plot extend"), lambda event : self.plot.ZoomToExtend()]]
-+
-+            for item in menu_items:
-+                item_id = wx.ID_ANY
-+                menu.Append(item_id, text = item[1])
-+                menu.Bind(wx.EVT_MENU, item[2], id = item_id)
-+
-+            wx.CallAfter(self.ShowMenu, menu) 
-+   
-+    def ShowMenu(self, menu):
-+        self.plot.PopupMenu(menu)
-+        menu.Destroy()
-+        self.plot.ReleaseMouse() 
-+
-+class PolygonDrawer:
-+    """
-+    An polygon editor.
-+    """
-+
-+    showverts = True
-+    epsilon = 5  #TODO settings max pixel distance to count as a vertex hit
-+    def __init__(self, ax, pol, empty_pol):
-+        if pol.figure is None:
-+            raise RuntimeError('You must first add the polygon to a figure or canvas before defining the interactor')
-+        self.ax = ax
-+        self.canvas = pol.figure.canvas
-+
-+        self.pol = pol
-+        self.empty_pol = empty_pol
-+
-+        x, y = zip(*self.pol.xy)
-+        self.line = Line2D(x, y, marker='o', markerfacecolor='r', animated=True)
-+        self.ax.add_line(self.line)
-+        #self._update_line(pol)
-+
-+        cid = self.pol.add_callback(self.poly_changed)
-+        self.moving_ver_idx = None # the active vert
-+
-+        self.mode = None
-+
-+        if self.empty_pol:
-+            self.Show(False)
-+
-+        self.canvas.mpl_connect('draw_event', self.draw_callback)
-+        self.canvas.mpl_connect('button_press_event', self.OnButtonPressed)
-+        self.canvas.mpl_connect('button_release_event', self.button_release_callback)
-+        self.canvas.mpl_connect('motion_notify_event', self.motion_notify_callback)
-+    
-+        self.it = 0
-+    def SetMode(self, mode):
-+        self.mode = mode
-+
-+    def GetCoords(self):
-+        if self.empty_pol:
-+            return None
-+
-+        coords = deepcopy(self.pol.xy)
-+        return coords
-+
-+    def SetEmpty(self):
-+        self._setEmptyPol(True)
-+
-+    def _setEmptyPol(self, empty_pol):
-+        self.empty_pol = empty_pol
-+        self.Show(not empty_pol)
-+
-+    def Show(self, show):
-+
-+        self.show = show
-+
-+        self.line.set_visible(self.show)
-+        self.pol.set_visible(self.show)
-+
-+        self.Redraw()
-+
-+    def Redraw(self):
-+        if self.show:
-+            self.ax.draw_artist(self.pol)
-+            self.ax.draw_artist(self.line)
-+        self.canvas.blit(self.ax.bbox)
-+        self.canvas.draw()
-+
-+    def draw_callback(self, event):
-+        self.background = self.canvas.copy_from_bbox(self.ax.bbox)
-+        self.ax.draw_artist(self.pol)
-+        self.ax.draw_artist(self.line)
-+    
-+    def poly_changed(self, pol):
-+        'this method is called whenever the polygon object is called'
-+        # only copy the artist props to the line (except visibility)
-+        vis = self.line.get_visible()
-+        Artist.update_from(self.line, pol)
-+        self.line.set_visible(vis)  # don't use the pol visibility state
-+
-+    def get_ind_under_point(self, event):
-+        'get the index of the vertex under point if within epsilon tolerance'
-+
-+        # display coords
-+        xy = np.asarray(self.pol.xy)
-+        xyt = self.pol.get_transform().transform(xy)
-+        xt, yt = xyt[:, 0], xyt[:, 1]
-+        d = np.sqrt((xt-event.x)**2 + (yt-event.y)**2)
-+        indseq = np.nonzero(np.equal(d, np.amin(d)))[0]
-+        ind = indseq[0]
-+
-+        if d[ind]>=self.epsilon:
-+            ind = None
-+
-+        return ind
-+
-+    def OnButtonPressed(self, event):
-+        if not event.inaxes:
-+            return
-+
-+        if event.button in [2, 3]: 
-+            return
-+
-+        if self.mode == "delete_vertex":
-+            self._deleteVertex(event)
-+        elif self.mode == "add_boundary_vertex":
-+            self._addVertexOnBoundary(event)
-+        elif self.mode == "add_vertex":
-+            self._addVertex(event)
-+        self.moving_ver_idx = self.get_ind_under_point(event)
-+
-+    def button_release_callback(self, event):
-+        'whenever a mouse button is released'
-+        if not self.showverts: return
-+        if event.button != 1: return
-+        self.moving_ver_idx = None
-+
-+    def ShowVertices(self, show):
-+        self.showverts = show
-+        self.line.set_visible(self.showverts)
-+        if not self.showverts: self.moving_ver_idx = None
-+
-+    def _deleteVertex(self, event):
-+        ind = self.get_ind_under_point(event)
-+
-+        if ind  is None or self.empty_pol:
-+            return
-+
-+        if len(self.pol.xy) <= 2:
-+            self.empty_pol = True
-+            self.Show(False)
-+            return
-+
-+        coords = []
-+        for i,tup in enumerate(self.pol.xy): 
-+            if i == ind:
-+                continue
-+            elif i == 0 and ind == len(self.pol.xy) - 1:
-+                continue
-+            elif i == len(self.pol.xy) - 1 and ind == 0: 
-+                continue
-+
-+            coords.append(tup)
-+
-+        self.pol.xy = coords
-+        self.line.set_data(zip(*self.pol.xy))
-+
-+        self.Redraw()
-+
-+    def _addVertexOnBoundary(self, event):
-+        if self.empty_pol:
-+            return
-+
-+        xys = self.pol.get_transform().transform(self.pol.xy)
-+        p = event.x, event.y # display coords
-+        for i in range(len(xys)-1):
-+            s0 = xys[i]
-+            s1 = xys[i+1]
-+            d = dist_point_to_segment(p, s0, s1)
-+
-+            if d<=self.epsilon:
-+                self.pol.xy = np.array(
-+                    list(self.pol.xy[:i + 1]) +
-+                    [(event.xdata, event.ydata)] +
-+                    list(self.pol.xy[i + 1:]))
-+                self.line.set_data(zip(*self.pol.xy))
-+                break
-+
-+        self.Redraw()
-+
-+    def _addVertex(self, event):
-+
-+        if self.empty_pol:
-+            pt = (event.xdata, event.ydata)
-+            self.pol.xy = np.array([pt, pt])
-+            self.Show(True)
-+            self.empty_pol = False
-+        else:
-+            self.pol.xy = np.array(
-+                        [(event.xdata, event.ydata)] +
-+                        list(self.pol.xy[1:]) +
-+                        [(event.xdata, event.ydata)])
-+
-+        self.line.set_data(zip(*self.pol.xy))
-+        
-+        self.Redraw()
-+
-+    def motion_notify_callback(self, event):
-+        'on mouse movement'
-+        if not self.mode == "move_vertex": return
-+        if not self.showverts: return
-+        if self.empty_pol: return
-+        if self.moving_ver_idx is None: return
-+        if event.inaxes is None: return
-+        if event.button != 1: return
-+
-+        self.it += 1
-+
-+        x,y = event.xdata, event.ydata
-+
-+        self.pol.xy[self.moving_ver_idx] = x,y
-+        if self.moving_ver_idx == 0:
-+            self.pol.xy[len(self.pol.xy) - 1] = x,y
-+        elif self.moving_ver_idx == len(self.pol.xy) - 1:
-+            self.pol.xy[0] = x,y
-+
-+        self.line.set_data(zip(*self.pol.xy))
-+
-+        self.canvas.restore_region(self.background)
-+
-+        self.Redraw()
-+
-+class ModestImage(mi.AxesImage):
-+    """
-+    Computationally modest image class.
-+
-+    ModestImage is an extension of the Matplotlib AxesImage class
-+    better suited for the interactive display of larger images. Before
-+    drawing, ModestImage resamples the data array based on the screen
-+    resolution and view window. This has very little affect on the
-+    appearance of the image, but can substantially cut down on
-+    computation since calculations of unresolved or clipped pixels
-+    are skipped.
-+
-+    The interface of ModestImage is the same as AxesImage. However, it
-+    does not currently support setting the 'extent' property. There
-+    may also be weird coordinate warping operations for images that
-+    I'm not aware of. Don't expect those to work either.
-+
-+    Author: Chris Beaumont <beaumont at hawaii.edu>
-+    """
-+    def __init__(self, *args, **kwargs):
-+        #why???
-+        #if 'extent' in kwargs and kwargs['extent'] is not None:
-+        #    raise NotImplementedError("ModestImage does not support extents")
-+
-+        self._full_res = None
-+        self._sx, self._sy = None, None
-+        self._bounds = (None, None, None, None)
-+        super(ModestImage, self).__init__(*args, **kwargs)
-+
-+    def set_data(self, A):
-+        """
-+        Set the image array
-+
-+        ACCEPTS: numpy/PIL Image A
-+        """
-+        self._full_res = A
-+        self._A = A
-+
-+        if self._A.dtype != np.uint8 and not np.can_cast(self._A.dtype,
-+                                                         np.float):
-+            raise TypeError("Image data can not convert to float")
-+
-+        if (self._A.ndim not in (2, 3) or
-+            (self._A.ndim == 3 and self._A.shape[-1] not in (3, 4))):
-+            raise TypeError("Invalid dimensions for image data")
-+
-+        self._imcache =None
-+        self._rgbacache = None
-+        self._oldxslice = None
-+        self._oldyslice = None
-+        self._sx, self._sy = None, None
-+
-+    def get_array(self):
-+        """Override to return the full-resolution array"""
-+        return self._full_res
-+
-+    def _scale_to_res(self):
-+        """ Change self._A and _extent to render an image whose
-+        resolution is matched to the eventual rendering."""
-+
-+        ax = self.axes
-+        ext = ax.transAxes.transform([1, 1]) - ax.transAxes.transform([0, 0])
-+        xlim, ylim = ax.get_xlim(), ax.get_ylim()
-+        dx, dy = xlim[1] - xlim[0], ylim[1] - ylim[0]
-+
-+        y0 = max(0, ylim[0] - 5)
-+        y1 = min(self._full_res.shape[0], ylim[1] + 5)
-+        x0 = max(0, xlim[0] - 5)
-+        x1 = min(self._full_res.shape[1], xlim[1] + 5)
-+        y0, y1, x0, x1 = map(int, [y0, y1, x0, x1])
-+
-+        sy = int(max(1, min((y1 - y0) / 5., np.ceil(dy / ext[1]))))
-+        sx = int(max(1, min((x1 - x0) / 5., np.ceil(dx / ext[0]))))
-+
-+        # have we already calculated what we need?
-+        if sx == self._sx and sy == self._sy and \
-+            x0 == self._bounds[0] and x1 == self._bounds[1] and \
-+            y0 == self._bounds[2] and y1 == self._bounds[3]:
-+            return
-+
-+        self._A = self._full_res[y0:y1:sy, x0:x1:sx]
-+        self._A = cbook.safe_masked_invalid(self._A)
-+        x1 = x0 + self._A.shape[1] * sx
-+        y1 = y0 + self._A.shape[0] * sy
-+
-+        self.set_extent([x0 - .5, x1 - .5, y0 - .5, y1 - .5])
-+        self._sx = sx
-+        self._sy = sy
-+        self._bounds = (x0, x1, y0, y1)
-+        self.changed()
-+
-+    def draw(self, renderer, *args, **kwargs):
-+        self._scale_to_res()
-+        super(ModestImage, self).draw(renderer, *args, **kwargs)
-+
-+
-+def imshow(axes, X, cmap=None, norm=None, aspect=None,
-+           interpolation=None, alpha=None, vmin=None, vmax=None,
-+           origin=None, extent=None, shape=None, filternorm=1,
-+           filterrad=4.0, imlim=None, resample=None, url=None, **kwargs):
-+    """Similar to matplotlib's imshow command, but produces a ModestImage
-+
-+    Unlike matplotlib version, must explicitly specify axes
-+    Author: Chris Beaumont <beaumont at hawaii.edu>
-+    """
-+
-+    if not axes._hold:
-+        axes.cla()
-+    if norm is not None:
-+        assert(isinstance(norm, mcolors.Normalize))
-+    if aspect is None:
-+        aspect = rcParams['image.aspect']
-+    axes.set_aspect(aspect)
-+    im = ModestImage(axes, cmap, norm, interpolation, origin, extent,
-+                            filternorm=filternorm,
-+                            filterrad=filterrad, resample=resample, **kwargs)
-+
-+    im.set_data(X)
-+    im.set_alpha(alpha)
-+    axes._set_artist_props(im)
-+
-+    if im.get_clip_path() is None:
-+        # image does not already have clipping set, clip to axes patch
-+        im.set_clip_path(axes.patch)
-+
-+    #if norm is None and shape is None:
-+    #    im.set_clim(vmin, vmax)
-+    if vmin is not None or vmax is not None:
-+        im.set_clim(vmin, vmax)
-+    else:
-+        im.autoscale_None()
-+    im.set_url(url)
-+
-+    # update ax.dataLim, and, if autoscaling, set viewLim
-+    # to tightly fit the image, regardless of dataLim.
-+    im.set_extent(im.get_extent())
-+
-+    axes.images.append(im)
-+    im._remove_method = lambda h: axes.images.remove(h)
-+
-+    return im
-+
-+def MergeImg(scatts, styles, output_queue):
-+
-+        init = True
-+        merge_tmp = grass.tempfile()
-+        for cat_id, scatt in scatts.iteritems():
-+            #print "color map %d" % cat_id
-+            #TODO make more general
-+            if cat_id != 0 and (styles[cat_id]['opacity'] == 0.0 or \
-+               not styles[cat_id]['show']):
-+                continue
-+            if init:
-+                b1_i = scatt['bands_info']['b1']
-+                b2_i = scatt['bands_info']['b2']
-+
-+                full_extend = (b1_i['min'] - 0.5, b1_i['max'] + 0.5, b2_i['min'] - 0.5, b2_i['max'] + 0.5) 
-+            
-+            if cat_id == 0:
-+                cmap = matplotlib.cm.jet
-+                cmap.set_bad('w',1.)
-+                cmap._init()
-+                cmap._lut[len(cmap._lut) - 1, -1] = 0
-+            else:
-+                colors = styles[cat_id]['color'].split(":")
-+
-+                cmap = matplotlib.cm.jet
-+                cmap.set_bad('w',1.)
-+                cmap._init()
-+                cmap._lut[len(cmap._lut) - 1, -1] = 0
-+                cmap._lut[:, 0] = int(colors[0])/255.0
-+                cmap._lut[:, 1] = int(colors[1])/255.0
-+                cmap._lut[:, 2] = int(colors[2])/255.0
-+
-+            #if init:
-+            masked_cat = np.ma.masked_less_equal(scatt['np_vals'], 0)
-+
-+            vmax = np.amax(masked_cat)
-+            masked_cat = masked_cat / float(vmax)
-+
-+            colored_cat = np.uint8(cmap(masked_cat) * 255)
-+            del masked_cat
-+            del cmap
-+            
-+            #colored_cat[...,3] = np.choose(masked_cat.mask, (255, 0))
-+            
-+            if init:
-+                merged_img = np.memmap(merge_tmp, dtype='uint8', mode='w+', shape=colored_cat.shape)
-+                merged_img[:] = colored_cat[:]
-+                init = False
-+            else:
-+                #c_img_a = np.memmap(grass.tempfile(), dtype="uint16", mode='w+', shape = shape) 
-+                c_img_a = colored_cat.astype('uint16')[:,:,3] * styles[cat_id]['opacity']
-+
-+                #TODO apply strides and there will be no need for loop
-+                #b = as_strided(a, strides=(0, a.strides[3], a.strides[3], a.strides[3]), shape=(3, a.shape[0], a.shape[1]))
-+
-+                for i in range(3):
-+                    merged_img[:,:,i] = (merged_img[:,:,i] * (255 - c_img_a) + colored_cat[:,:,i] * c_img_a) / 255;
-+                merged_img[:,:,3] = (merged_img[:,:,3] * (255 - c_img_a) + 255 * c_img_a) / 255;
-+                
-+                del c_img_a
-+            
-+            del colored_cat
-+        output_queue.put((merged_img, full_extend))
-+        #return merged_img, full_extend 
-\ No newline at end of file
-Index: gui/wxpython/scatt_plot/controllers.py
-===================================================================
---- gui/wxpython/scatt_plot/controllers.py	(revision 0)
-+++ gui/wxpython/scatt_plot/controllers.py	(working copy)
-@@ -0,0 +1,666 @@
-+"""!
-+ at package scatt_plot.controllers
-+
-+ at brief Controller layer for scatter plot tool.
-+
-+Classes:
-+
-+(C) 2013 by the GRASS Development Team
-+
-+This program is free software under the GNU General Public License
-+(>=v2). Read the file COPYING that comes with GRASS for details.
-+
-+ at author Stepan Turek <stepan.turek seznam.cz> (mentor: Martin Landa)
-+"""
-+import os
-+import sys
-+
-+#TODO just for testing
-+import time
-+
-+#TODO
-+import wx
-+
-+from core.gcmd import GException, GError, GMessage, RunCommand
-+
-+from scatt_plot.scatt_core import Core, idBandsToidScatt
-+
-+from scatt_plot.dialogs import AddScattPlotDialog
-+from scatt_plot.gthreading import gThread
-+from core.gconsole import EVT_CMD_DONE
-+from grass.pydispatch.signal import Signal
-+
-+class ScattsManager(wx.EvtHandler):
-+    def __init__(self, guiparent, giface, iclass_mapwin):
-+        #TODO remove iclass parameter
-+
-+        wx.EvtHandler.__init__(self)
-+        self.giface = giface
-+        self.mapDisp  = giface.GetMapDisplay()
-+
-+        if iclass_mapwin:
-+            self.mapWin = iclass_mapwin
-+        else:
-+            self.mapWin = giface.GetMapWindow()
-+
-+        self.guiparent = guiparent
-+
-+        self.show_add_scatt_plot = False
-+
-+        self.core = Core()
-+        self.scatts_dt, self.scatt_conds_dt = self.core.GetScattsData()
-+
-+        self.cats_mgr = CategoriesManager(self, self.core)
-+
-+        self.thread = gThread(self);
-+        
-+        self.plots = {}
-+        self.added_cats_rasts = {}
-+
-+        self.cats_to_update = []
-+
-+        self.plot_mode =  None
-+        self.pol_sel_mode = [False, None]
-+
-+        self.data_set = False
-+
-+        if iclass_mapwin: 
-+            self.mapWin_conn = MapWinConnection(self, self.mapWin, self.core.CatRastUpdater())
-+            self.iclass_conn = IClassConnection(self, iclass_mapwin.parent, self.cats_mgr)
-+        else:
-+            self.mapWin_conn = None
-+            self.iclass_conn = None
-+
-+        self.tasks_pids = {
-+                            'add_scatt' : [],
-+                            'set_data' : -1,
-+                            'set_data_add' : -1,
-+                            'set_edit_cat_data' : -1,
-+                            'mapwin_conn' : [],
-+                            'render_plots' : -1,
-+                            'render' : []
-+                           }
-+
-+        self.Bind(EVT_CMD_DONE, self.OnThreadDone)
-+
-+    def CleanUp(self):
-+        self.core.CleanUp()
-+
-+        for scatt_id, scatt in self.plots.items():
-+            scatt.CleanUp()
-+
-+    def OnThreadDone(self, event):
-+        
-+        if event.exception:
-+            GError(str(event.exception))
-+            return
-+
-+        if event.pid in self.tasks_pids['mapwin_conn']:
-+            self.tasks_pids['mapwin_conn'].remove(event.pid)
-+            updated_cats = event.ret
-+
-+            for cat in updated_cats:
-+                if cat not in  self.cats_to_update:
-+                    self.cats_to_update.append(cat)
-+
-+            if not self.tasks_pids['mapwin_conn']:
-+                self.tasks_pids['render_plots'] = self.thread.GetId()
-+                self.thread.Run(callable = self.core.ComputeCatsScatts, 
-+                                cats_ids = self.cats_to_update[:])
-+                del self.cats_to_update[:]
-+ 
-+            return
-+
-+        if self.tasks_pids['render_plots'] == event.pid:
-+            self.RenderScattPlts()
-+            return
-+
-+        if event.pid in self.tasks_pids['render']:
-+            self.tasks_pids['render'].remove(event.pid)
-+            return
-+            
-+        if event.pid in self.tasks_pids['add_scatt']:
-+            self.tasks_pids['add_scatt'].remove(event.pid)
-+            self.AddScattPlotDone(event)
-+            return
-+
-+        if self.tasks_pids['set_data'] == event.pid:
-+            self.SetDataDone(event)
-+            return
-+        
-+        if self.tasks_pids['set_data_add'] == event.pid:
-+            self.SetDataDone(event)
-+            self.AddScattPlot()
-+            return
-+        
-+        if self.tasks_pids['set_edit_cat_data'] == event.pid:
-+            self.SetEditCatDataDone(event)
-+            return
-+
-+    def SetData(self, bands):
-+
-+        self.CleanUp()
-+
-+        self.data_set = False
-+
-+        if self.show_add_scatt_plot:
-+            self.tasks_pids['set_data_add'] = self.thread.GetId()
-+        else:
-+            self.tasks_pids['set_data'] = self.thread.GetId()
-+
-+        self.thread.Run(callable = self.core.SetData, bands = bands)
-+
-+    def SetDataDone(self, event):
-+
-+        self.data_set = True
-+        self.cats_mgr.InitCoreCats()
-+
-+    def OnOutput(self, event):
-+        """!Print thread output according to debug level.
-+        """
-+        print event.text
-+
-+    def GetBands(self):
-+        return self.core.GetBands()
-+
-+    def AddScattPlot(self):
-+        if not self.data_set and self.iclass_conn:
-+            self.show_add_scatt_plot = True
-+            self.iclass_conn.SetData()
-+            self.show_add_scatt_plot = False
-+            return
-+        if not self.data_set:
-+            GError(_('No data set.'))
-+            return
-+
-+        dlg = AddScattPlotDialog(parent = self.guiparent, bands = self.core.GetBands())
-+        if dlg.ShowModal() == wx.ID_OK:
-+            self._addScattPlot(dlg.GetScattId())
-+        
-+        dlg.Destroy()
-+
-+        return 
-+
-+        #for testing
-+        jj = len(self.core.GetBands()) - 1
-+
-+        max_k = 20
-+        k = 0
-+        for i in range(jj):
-+            for j in range(i, jj):
-+                print i * (len(self.core.GetBands()) - 1) + j
-+                self._addScattPlot(i * (len(self.core.GetBands()) - 1) + j)
-+                k += 1
-+                if k == max_k:
-+                    break
-+            if k == max_k:
-+                break
-+            jj -= 1
-+
-+
-+    def _addScattPlot(self, scatt_id):
-+        if self.plots.has_key(scatt_id):
-+            GMessage(_("Scatter plot has been already added."))
-+            return
-+
-+        self.tasks_pids['add_scatt'].append(self.thread.GetId())
-+        
-+        self.thread.Run(callable = self.core.AddScattPlot, scatt_id = scatt_id)
-+
-+    def RenderScattPlts(self, scatt_ids = None):
-+        if len(self.tasks_pids['render']) > 1:
-+            print "skip"
-+            return 
-+
-+        self.tasks_pids['render'].append(self.thread.GetId())
-+        self.thread.Run(callable = self._renderscattplts, scatt_ids = scatt_ids)
-+
-+    def _renderscattplts(self, scatt_ids):
-+        cats_attrs = self.cats_mgr.GetCategoriesAttrs()
-+        for i_scatt_id, scatt in self.plots.items():
-+            if scatt_ids is not None and i_scatt_id not in scatt_ids:
-+                continue
-+
-+            scatt_dt = self.scatts_dt.GetScatt(i_scatt_id)
-+            ellipses_dt = self.scatts_dt.GetEllipses(i_scatt_id)
-+
-+            if self.pol_sel_mode[0]:
-+                self._getSelectedAreas(i_scatt_id, scatt_dt, cats_attrs)
-+
-+            scatt.Plot(scatts = scatt_dt, ellipses = ellipses_dt, styles = cats_attrs)
-+
-+    def _getSelectedAreas(self, scatt_id, scatt_dt, cats_attrs):
-+
-+        cat_id = self.cats_mgr.GetSelectedCat()
-+        if not cat_id:
-+            return
-+
-+        sel_a_cat_id = max(cats_attrs.keys()) + 1        
-+
-+        s = self.scatt_conds_dt.GetScatt(scatt_id, [cat_id])
-+        if not s:
-+            return
-+        cats_attrs[sel_a_cat_id] = {'color' : "255:255:0",
-+                                    'opacity' : 0.7,
-+                                    'show' : True}
-+
-+        scatt_dt[sel_a_cat_id] = s[cat_id]
-+
-+    def AddScattPlotDone(self, event):
-+        
-+        scatt_id = event.kwds['scatt_id']
-+
-+        #TODO guiparent - not very good
-+        self.plots[scatt_id] = self.guiparent.NewScatterPlot(scatt_id = scatt_id)
-+        self.plots[scatt_id].plotClosed.connect(self.PlotClosed)
-+
-+        if self.plot_mode:
-+            self.plots[scatt_id].SetMode(self.plot_mode)
-+
-+        self.RenderScattPlts(scatt_ids = [scatt_id])
-+
-+    def PlotClosed(self, scatt_id):
-+        del self.plots[scatt_id]
-+
-+    def SetPlotsMode(self, mode):
-+
-+        self.plot_mode = mode
-+        for scatt in self.plots.itervalues():
-+            scatt.SetMode(mode)
-+            scatt.SetEditingMode(self.pol_sel_mode[1])
-+
-+    def ActivateSelectionPolygonMode(self, activate):
-+        self.pol_sel_mode[0] = activate
-+        self.RenderScattPlts()
-+        return activate
-+
-+    def ProcessSelectionPolygons(self, process_mode):        
-+        scatts_polygons = {}        
-+        for scatt_id, scatt in self.plots.iteritems():
-+            coords = scatt.GetCoords()
-+            if coords is not None:
-+                scatts_polygons[scatt_id] = coords
-+
-+        if not scatts_polygons:
-+            return
-+
-+        value = 1
-+        if process_mode == 'remove':
-+            value = 0
-+
-+        sel_cat_id = self.cats_mgr.GetSelectedCat()
-+        if not sel_cat_id:
-+            dlg = wx.MessageDialog(parent = self.guiparent,
-+                      message = _("In order to select arrea in scatter plot, "
-+                                  "you have to select class first.\n\n"
-+                                  "There is no class yet, "
-+                                  "do you want to create one?"),
-+                      caption = _("No class selected"),
-+                      style = wx.YES_NO)
-+            if dlg.ShowModal() == wx.ID_YES:
-+                self.iclass_conn.EmptyCategories()
-+
-+        sel_cat_id = self.cats_mgr.GetSelectedCat()
-+        if not sel_cat_id:
-+            return
-+
-+        for scatt in self.plots.itervalues():
-+            scatt.SetEmpty()
-+
-+        self.tasks_pids['set_edit_cat_data'] = self.thread.GetId()
-+        self.thread.Run(callable = self.core.UpdateCategoryWithPolygons, 
-+                        cat_id = sel_cat_id,
-+                        scatts_pols = scatts_polygons,
-+                        value = value)
-+
-+    def SetPlotsEditingMode(self, mode):
-+        
-+        self.pol_sel_mode[1] = mode
-+        for scatt in self.plots.itervalues():
-+            scatt.SetEditingMode(mode)
-+    
-+    def SetEditCatDataDone(self, event):
-+
-+        if event.exception:
-+            GError(_("Error occured during computation of scatter plot category:\n%s"), 
-+                      parent = self.guiparent, showTraceback = False)
-+
-+        cat_id = event.ret
-+
-+        self.RenderScattPlts()
-+
-+        cat_id = event.kwds["cat_id"]
-+
-+        cat_rast = self.core.GetCatRast(cat_id)
-+
-+        if cat_rast not in self.added_cats_rasts.values():
-+
-+            cats_attrs = self.cats_mgr.GetCategoryAttrs(cat_id)
-+
-+    
-+            region = self.core.GetRegion()
-+            ret, err_msg = RunCommand('r.region',
-+                                      map = cat_rast,
-+                                      getErrorMsg = True,
-+                                      n = "%f" % region['n'],
-+                                      s = "%f" % region['s'],
-+                                      e = "%f" % region['e'],
-+                                      w = "%f" % region['w'],
-+                                      )
-+
-+            ret, err_msg = RunCommand('r.colors',
-+                                      map = cat_rast,
-+                                      rules = "-",
-+                                      stdin = "1 %s" % cats_attrs["color"],
-+                                      getErrorMsg = True)
-+
-+            if ret != 0:
-+                GError(_("r.region failed\n%s" % err_msg))
-+
-+            self.mapWin.Map.AddLayer(ltype = "raster", name =  "cat_%d" % cat_id, render = True,
-+                                     command = ["d.rast", "map=%s" % cat_rast, "values=1"])                
-+
-+
-+            if ret != 0:
-+                GError(_("r.region failed\n%s" % err_msg))
-+
-+            self.added_cats_rasts[cat_id] = cat_rast
-+
-+        self.giface.updateMap.emit()
-+
-+    def DigitDataChanged(self, vectMap, digit):
-+        
-+        if self.mapWin_conn:
-+            self.mapWin_conn.DigitDataChanged(vectMap, digit)
-+            return 1
-+        else:
-+            return 0
-+
-+    def GetCategoriesManager(self):
-+        return self.cats_mgr
-+
-+
-+class CategoriesManager:
-+
-+    def __init__(self, scatt_mgr, core):
-+
-+        self.core = core
-+        self.scatt_mgr = scatt_mgr
-+
-+        self.cats = {}
-+        self.cats_ids = []
-+
-+        self.sel_cat_id = None
-+
-+        self.initialized = Signal('CategoriesManager.initialized')
-+        self.setCategoryAttrs = Signal('CategoriesManager.setCategoryAttrs')
-+        self.deletedCategory = Signal('CategoriesManager.deletedCategory')
-+        self.addedCategory = Signal('CategoriesManager.addedCategory')
-+
-+    def Clear(self):
-+
-+        self.cats.clear()
-+        del self.cats_ids[:]
-+
-+        self.sel_cat_id = None  
-+
-+    def InitCoreCats(self):
-+        if self.scatt_mgr.data_set:
-+            for cat_id in self.cats_ids:
-+                self.core.AddCategory(cat_id)
-+
-+    def AddCategory(self, cat_id = None, name = None, color = None):
-+
-+        if cat_id is None:
-+            if self.cats_ids:
-+                cat_id = max(self.cats_ids) + 1
-+            else:
-+                cat_id = 1
-+
-+        if self.scatt_mgr.data_set:
-+            self.scatt_mgr.thread.Run(callable = self.core.AddCategory, 
-+                                      cat_id = cat_id)
-+            #TODO check number of cats
-+            #if ret < 0: #TODO
-+            #    return -1;
-+
-+        self.cats[cat_id] = {
-+                                'name' : _('Category %s' % cat_id ),
-+                                'color' : "0:0:0",
-+                                'opacity' : 1.0,
-+                                'show' : True
-+                            }
-+
-+        self.cats_ids.append(cat_id)
-+
-+        if name is not None:
-+            self.cats[cat_id]["name"] = name
-+   
-+        if color is not None:
-+            self.cats[cat_id]["color"] = color
-+
-+        self.addedCategory.emit(cat_id = cat_id,
-+                                name = self.cats[cat_id]["name"], 
-+                                color = self.cats[cat_id]["color"] )
-+        return cat_id
-+
-+    def SetCategoryAttrs(self, cat_id, attrs_dict):
-+        render = False
-+        for k, v in attrs_dict.iteritems():
-+            if not render and k in ['name', 'color', 'opacity', 'show']:
-+                render = True
-+
-+            self.cats[cat_id][k] = v
-+
-+        #TODO optimization 
-+        if render:
-+            self.scatt_mgr.RenderScattPlts()
-+
-+        self.setCategoryAttrs.emit(cat_id = cat_id, attrs_dict = attrs_dict)
-+
-+    def DeleteCategory(self, cat_id):
-+
-+        if self.scatt_mgr.data_set:
-+            self.scatt_mgr.thread.Run(callable = self.core.DeleteCategory, 
-+                                      cat_id = cat_id)
-+        del self.cats[cat_id]
-+        self.cats_ids.remove(cat_id)
-+
-+        self.deletedCategory.emit(cat_id = cat_id)
-+
-+    #TODO emit event?
-+    def SetSelectedCat(self, cat_id):
-+        self.sel_cat_id = cat_id
-+        if self.scatt_mgr.pol_sel_mode[0]:
-+            self.scatt_mgr.RenderScattPlts()
-+
-+    def GetSelectedCat(self):
-+        return self.sel_cat_id
-+
-+    def GetCategoryAttrs(self, cat_id):
-+        #TODO is mutable
-+        return self.cats[cat_id]
-+
-+    def GetCategoriesAttrs(self):
-+        #TODO is mutable
-+        return self.cats
-+     
-+    def GetCategories(self):
-+        return self.cats_ids[:]
-+
-+    def SetCategoryPosition(self):
-+        if newindex > oldindex:
-+            newindex -= 1
-+        
-+        self.cats_ids.insert(newindex, self.cats_ids.pop(oldindex))
-+
-+class MapWinConnection:
-+    def __init__(self, scatt_mgr, mapWin, scatt_rast_updater):
-+        self.mapWin = mapWin
-+        self.vectMap = None
-+        self.scatt_rast_updater = scatt_rast_updater
-+        self.scatt_mgr = scatt_mgr
-+        self.cats_mgr = scatt_mgr.cats_mgr
-+
-+        self.thread = self.scatt_mgr.thread
-+
-+        #TODO
-+        self.mapWin.parent.toolbars["vdigit"].editingStarted.connect(self.DigitDataChanged)
-+
-+        #def ChangeMap(self, vectMap, layers_cats):
-+        #     self.vectMap = vectMap
-+        #     self.layers_cats = layers_cats
-+
-+        #ret, region, msg = RunCommand("v.to.rast",
-+        #                              flags = "gp",
-+        #                              getErrorMsg = True,
-+        #                              read = True)
-+
-+    def _connectSignals(self):
-+        self.digit.featureAdded.connect(self.AddFeature)
-+        self.digit.areasDeleted.connect(self.DeleteAreas)
-+        self.digit.featuresDeleted.connect(self.DeleteAreas)
-+        self.digit.vertexMoved.connect(self.EditedFeature)
-+        self.digit.vertexRemoved.connect(self.EditedFeature)
-+        self.digit.lineEdited.connect(self.EditedFeature)
-+        self.digit.featuresMoved.connect(self.EditedFeature)
-+
-+    def AddFeature(self, new_bboxs, new_areas_cats):
-+        if not self.scatt_mgr.data_set:
-+            return
-+
-+        self.scatt_mgr.tasks_pids['mapwin_conn'].append(self.thread.GetId())
-+        self.thread.Run(callable = self.scatt_rast_updater.EditedFeature, 
-+                        new_bboxs = new_bboxs, 
-+                        old_bboxs = [], 
-+                        old_areas_cats = [],
-+                        new_areas_cats = new_areas_cats)
-+
-+    def DeleteAreas(self, old_bboxs, old_areas_cats):
-+        if not self.scatt_mgr.data_set:
-+            return
-+
-+        self.scatt_mgr.tasks_pids['mapwin_conn'].append(self.thread.GetId())
-+        self.thread.Run(callable = self.scatt_rast_updater.EditedFeature, 
-+                        new_bboxs = [], 
-+                        old_bboxs = old_bboxs, 
-+                        old_areas_cats = old_areas_cats,
-+                        new_areas_cats = [])
-+
-+
-+    def EditedFeature(self, new_bboxs, new_areas_cats, old_bboxs, old_areas_cats):
-+        if not self.scatt_mgr.data_set:
-+            return
-+
-+        self.scatt_mgr.tasks_pids['mapwin_conn'].append(self.thread.GetId())
-+        self.thread.Run(callable = self.scatt_rast_updater.EditedFeature, 
-+                        new_bboxs = new_bboxs, 
-+                        old_bboxs = old_bboxs, 
-+                        old_areas_cats = old_areas_cats,
-+                        new_areas_cats = new_areas_cats)
-+
-+    def DigitDataChanged(self, vectMap, digit):
-+
-+        self.digit = digit
-+        self.vectMap = vectMap
-+
-+        self.digit.EmitSignals(emit = True)
-+
-+        self.scatt_rast_updater.SetVectMap(vectMap)
-+
-+        self._connectSignals()
-+
-+
-+class IClassConnection:
-+    def __init__(self, scatt_mgr, iclass_frame, cats_mgr):
-+        self.iclass_frame = iclass_frame
-+        self.stats_data   = self.iclass_frame.stats_data
-+        self.cats_mgr     = cats_mgr
-+        self.scatt_mgr    = scatt_mgr
-+
-+        self.stats_data.statisticsAdded.connect(self.AddCategory)
-+        self.stats_data.statisticsDeleted.connect(self.DeleteCategory)
-+        self.stats_data.allStatisticsDeleted.connect(self.DeletAllCategories)
-+        self.stats_data.statisticsSet.connect(self.SetCategory)
-+
-+        self.iclass_frame.groupSet.connect(self.GroupSet)
-+
-+        self.cats_mgr.setCategoryAttrs.connect(self.SetStatistics)
-+        self.cats_mgr.deletedCategory.connect(self.DeleteStatistics)
-+        self.cats_mgr.addedCategory.connect(self.AddStatistics)
-+
-+        self.iclass_frame.categoryChanged.connect(self.CategoryChanged)
-+
-+        self.SyncCats()
-+
-+    def SetData(self):
-+        self.iclass_frame.AddBands()
-+
-+    def EmptyCategories(self):
-+        self.iclass_frame.OnCategoryManager(None)
-+
-+    def SyncCats(self):
-+        self.cats_mgr.addedCategory.disconnect(self.AddStatistics)
-+        cats = self.stats_data.GetCategories()
-+        for c in cats:
-+            stats = self.stats_data.GetStatistics(c)
-+            self.cats_mgr.AddCategory(c, stats.name, stats.color)
-+        self.cats_mgr.addedCategory.connect(self.AddStatistics)
-+
-+    def CategoryChanged(self, cat):
-+        self.cats_mgr.SetSelectedCat(cat) 
-+
-+    def AddCategory(self, cat, name, color):
-+        self.cats_mgr.addedCategory.disconnect(self.AddStatistics)
-+        self.cats_mgr.AddCategory(cat_id = cat, name = name, color = color)
-+        self.cats_mgr.addedCategory.connect(self.AddStatistics)
-+
-+    def DeleteCategory(self, cat):
-+        self.cats_mgr.deletedCategory.disconnect(self.DeleteStatistics)
-+        self.cats_mgr.DeleteCategory(cat)
-+        self.cats_mgr.deletedCategory.connect(self.DeleteStatistics)
-+
-+    def DeletAllCategories(self):
-+
-+        self.cats_mgr.deletedCategory.disconnect(self.DeleteStatistics)
-+        cats = self.stats_data.GetCategories()
-+        for c in cats:
-+            self.cats_mgr.DeleteCategory(c)
-+        self.cats_mgr.deletedCategory.connect(self.DeleteStatistics)
-+
-+    def SetCategory(self, cat, stats):
-+
-+        self.cats_mgr.setCategoryAttrs.disconnect(self.SetStatistics)
-+        cats_attr = {}
-+        for attr in ['name', 'color']:
-+            if stats.has_key(attr):
-+                cats_attr[attr] = stats[attr]
-+
-+        if cats_attr:
-+            self.cats_mgr.SetCategoryAttrs(cat, cats_attr)
-+        self.cats_mgr.setCategoryAttrs.connect(self.SetStatistics)
-+
-+
-+    def SetStatistics(self, cat_id, attrs_dict):
-+        self.stats_data.statisticsSet.disconnect(self.SetCategory)
-+        self.stats_data.GetStatistics(cat_id).SetStatistics(attrs_dict)
-+        self.stats_data.statisticsSet.connect(self.SetCategory)
-+
-+    def AddStatistics(self, cat_id, name, color):
-+        self.stats_data.statisticsAdded.disconnect(self.AddCategory)
-+        self.stats_data.AddStatistics(cat_id, name, color)
-+        self.stats_data.statisticsAdded.connect(self.AddCategory)
-+
-+    def DeleteStatistics(self, cat_id):
-+        self.stats_data.statisticsDeleted.disconnect(self.DeleteCategory)
-+        self.stats_data.DeleteStatistics(cat_id)
-+        self.stats_data.statisticsDeleted.connect(self.DeleteCategory)
-+
-+    def GroupSet(self, group):
-+        res = RunCommand('i.group',
-+                         flags = 'g',
-+                         group = group, subgroup = group,
-+                         read = True).strip()
-+        if res.split('\n')[0]:
-+            bands = res.split('\n')
-+            self.scatt_mgr.SetData(bands)
-\ No newline at end of file
+     def GetSelectedIndices(self, state =  wx.LIST_STATE_SELECTED):
 Index: gui/wxpython/scatt_plot/gthreading.py
 ===================================================================
 --- gui/wxpython/scatt_plot/gthreading.py	(revision 0)
 +++ gui/wxpython/scatt_plot/gthreading.py	(working copy)
-@@ -0,0 +1,133 @@
+@@ -0,0 +1,134 @@
 +"""!
 + at package scatt_plot.gthreading
 +
@@ -2477,7 +1719,7 @@
 +        os.environ['GRASS_MESSAGE_FORMAT'] = 'gui'
 +        while True:
 +            requestId, args, kwds = self.requestQ.get()
-+            for key in ('callable', 'onDone', 'onPrepare', 'userData'):
++            for key in ('callable', 'onDone', 'onPrepare', 'userdata'):
 +                if key in kwds:
 +                    vars()[key] = kwds[key]
 +                    del kwds[key]
@@ -2521,10 +1763,11 @@
 +            time.sleep(.1)
 +
 +            if self.receiver:
-+                event = wxCmdDone(kwds = kwds,
-+                                  args = args, #TODO expand args to kwds
++                event = wxCmdDone(kwds=kwds,
++                                  args=args, #TODO expand args to kwds
 +                                  ret=ret,
 +                                  exception=exception,
++                                  userdata=vars()['userdata'],
 +                                  pid=requestId)
 +
 +                # send event
@@ -2541,7 +1784,7 @@
 ===================================================================
 --- gui/wxpython/scatt_plot/dialogs.py	(revision 0)
 +++ gui/wxpython/scatt_plot/dialogs.py	(working copy)
-@@ -0,0 +1,142 @@
+@@ -0,0 +1,149 @@
 +"""!
 + at package scatt_plot.dialogs
 +
@@ -2562,6 +1805,8 @@
 +import wx
 +from scatt_plot.scatt_core import idBandsToidScatt
 +
++from core.gcmd import GError
++
 +class AddScattPlotDialog(wx.Dialog):
 +
 +    def __init__(self, parent, bands, id  = wx.ID_ANY):
@@ -2570,7 +1815,8 @@
 +
 +        self.bands = bands
 +
-+        self.scatt_id = None
++        self.x_band = None
++        self.y_band = None
 +
 +        self._createWidgets()
 +
@@ -2579,13 +1825,13 @@
 +        self.labels = {}
 +        self.params = {}
 +
-+        self.band_1_label = wx.StaticText(parent = self, id = wx.ID_ANY, label = _("Band 1:"))
++        self.band_1_label = wx.StaticText(parent = self, id = wx.ID_ANY, label = _("%s axis:" % "x"))
 +
 +        self.band_1_ch = wx.ComboBox(parent = self, id = wx.ID_ANY,
 +                                     choices = self.bands,
 +                                     style = wx.CB_READONLY, size = (350, 30))
 +
-+        self.band_2_label = wx.StaticText(parent = self, id = wx.ID_ANY, label = _("Band 2:"))
++        self.band_2_label = wx.StaticText(parent = self, id = wx.ID_ANY, label = _("%s axis:" % "y"))
 +
 +        self.band_2_ch = wx.ComboBox(parent = self, id = wx.ID_ANY,
 +                                     choices = self.bands,
@@ -2664,31 +1910,35 @@
 +    def OnOk(self, event):
 +        """!
 +        """
-+        band_1 = self.band_1_ch.GetSelection()
-+        band_2 = self.band_2_ch.GetSelection()
++        b_x = self.band_1_ch.GetSelection()
++        b_y = self.band_2_ch.GetSelection()
 +
++        err = True
 +
-+        if band_1 == band_2:
++        if b_x < 0 or b_y < 0:
++            GError(_("Select both x and y bands."))
++        elif b_y == b_x:
 +            GError(_("Selected bands must be different."))
++        else:
++            err = False        
++
++        if err:
++            self.band_y = None
++            self.band_x = None
 +            return
-+        
-+        #TODO axes selection
-+        if band_1 > band_2:
-+            tmp_band = band_2
-+            band_2 = band_1
-+            band_1 = band_2
 +
-+        self.scatt_id = idBandsToidScatt(band_1, band_2, len(self.bands))
++        self.band_y = b_y
++        self.band_x = b_x
 +
 +        event.Skip()
 +
-+    def GetScattId(self):
-+        return self.scatt_id
++    def GetBands(self):
++        return (self.band_x, self.band_y)
 Index: gui/wxpython/scatt_plot/toolbars.py
 ===================================================================
 --- gui/wxpython/scatt_plot/toolbars.py	(revision 0)
 +++ gui/wxpython/scatt_plot/toolbars.py	(working copy)
-@@ -0,0 +1,178 @@
+@@ -0,0 +1,212 @@
 +"""!
 + at package scatt_plot.toolbars
 +
@@ -2724,6 +1974,7 @@
 +        
 +        # realize the toolbar
 +        self.Realize()
++        self.scatt_mgr.modeSet.connect(self.ModeSet)
 +
 +    def _toolbarData(self):
 +
@@ -2733,7 +1984,7 @@
 +                                         label = _('Show manual')),
 +                'add_scatt_pl'  : MetaIcon(img = 'layer-raster-analyze',
 +                                            label = _('Add scatter plot')),
-+                'selCatPol'  : MetaIcon(img = 'polygon-create',
++                'selCatPol'  : MetaIcon(img = 'polygon',
 +                                      label = _('Select area with polygon')),
 +                'pan'        : MetaIcon(img = 'pan',
 +                                         label = _('Pan'),
@@ -2746,6 +1997,9 @@
 +                }
 +
 +        return self._getToolbarData((
++                                     ('add_scatt', icons["add_scatt_pl"],
++                                     lambda event : self.scatt_mgr.AddScattPlot()),
++                                     (None, ),
 +                                     ("cats_mgr", icons['cats_mgr'],
 +                                     lambda event: self.parent.ShowCategoryPanel(event.Checked()), wx.ITEM_CHECK),
 +                                     (None, ),
@@ -2757,10 +2011,7 @@
 +                                      wx.ITEM_CHECK),
 +                                     ('sel_pol_mode', icons['selCatPol'],
 +                                      self.ActivateSelectionPolygonMode,
-+                                     wx.ITEM_CHECK),
-+                                     (None, ),
-+                                     ('add_scatt', icons["add_scatt_pl"],
-+                                     lambda event : self.scatt_mgr.AddScattPlot())
++                                     wx.ITEM_CHECK)
 +                                     #('settings', icon["settings"],
 +                                     # self.parent.OnSettings),  
 +                                     #('help', icons["help"],
@@ -2768,15 +2019,14 @@
 +                                    ))
 +
 +    def GetToolId(self, toolName): #TODO can be useful in base
-+
 +        return vars(self)[toolName]            
 +
 +    def SetPloltsMode(self, event, tool_name):
-+
++        self.scatt_mgr.modeSet.disconnect(self.ModeSet)
 +        if event.Checked()  == True:
 +            for i_tool_data in  self._data:
 +                i_tool_name = i_tool_data[0]
-+                if not i_tool_name or i_tool_name == "cats_mgr":
++                if not i_tool_name or i_tool_name in ["cats_mgr", "sel_pol_mode"]:
 +                    continue
 +                if i_tool_name == tool_name:
 +                    continue
@@ -2786,6 +2036,7 @@
 +            self.scatt_mgr.SetPlotsMode(mode = tool_name)
 +        else:
 +            self.scatt_mgr.SetPlotsMode(mode = None)
++        self.scatt_mgr.modeSet.connect(self.ModeSet)
 +
 +    def ActivateSelectionPolygonMode(self, event):
 +
@@ -2795,6 +2046,17 @@
 +        i_tool_id = vars(self)['sel_pol_mode']
 +        self.ToggleTool(i_tool_id, activated)
 +
++    def ModeSet(self, mode):
++        self.UnsetMode()
++
++    def UnsetMode(self):
++        for i_tool_data in  self._data:
++                i_tool_name = i_tool_data[0]
++                if not i_tool_name or i_tool_name in ["cats_mgr", "sel_pol_mode"]:
++                    continue
++                i_tool_id = vars(self)[i_tool_name]
++                self.ToggleTool(i_tool_id, False)
++
 +class EditingToolbar(BaseToolbar):
 +    """!Main toolbar
 +    """
@@ -2806,6 +2068,7 @@
 +        
 +        # realize the toolbar
 +        self.Realize()
++        self.scatt_mgr.modeSet.connect(self.ModeSet)
 +
 +    def _toolbarData(self):
 +        """!Toolbar data
@@ -2820,7 +2083,7 @@
 +            'addVertex'       : MetaIcon(img = 'vertex-create',
 +                                         label = _('Add new vertex'),
 +                                         desc = _('Add new vertex to polygon boundary scatter plot')),
-+            'editLine'        : MetaIcon(img = 'line-edit',
++            'editLine'        : MetaIcon(img = 'polygon-create',
 +                                         label = _('Edit line/boundary'),
 +                                         desc = _('Add new vertex between last and first points of the boundary')),
 +            'moveVertex'      : MetaIcon(img = 'vertex-move',
@@ -2829,6 +2092,9 @@
 +            'removeVertex'    : MetaIcon(img = 'vertex-delete',
 +                                         label = _('Remove vertex'),
 +                                         desc = _('Remove boundary vertex.')),
++            'delete'        : MetaIcon(img = 'polygon-delete',
++                                         label = _('Edit line/boundary'),
++                                         desc = _('Delete polygon')),
 +            }
 +
 +        return self._getToolbarData((
@@ -2848,10 +2114,14 @@
 +                                     wx.ITEM_CHECK),
 +                                     ('delete_vertex', self.icons['removeVertex'],
 +                                     lambda event: self.SetMode(event, 'delete_vertex'),
++                                     wx.ITEM_CHECK),
++                                     ('delete', self.icons['delete'],
++                                     lambda event: self.SetMode(event, 'delete'),
 +                                     wx.ITEM_CHECK)
 +                                    ))
 +
 +    def SetMode(self, event, tool_name):
++        self.scatt_mgr.modeSet.disconnect(self.ModeSet)
 +        if event.Checked() == True:
 +            for i_tool_data in  self._data:
 +                i_tool_name = i_tool_data[0]
@@ -2861,10 +2131,24 @@
 +                    continue
 +                i_tool_id = vars(self)[i_tool_name]
 +                self.ToggleTool(i_tool_id, False)
-+            self.scatt_mgr.SetPlotsEditingMode(tool_name)
++            self.scatt_mgr.SetPlotsMode(tool_name)
 +        else:
-+            self.scatt_mgr.SetPlotsEditingMode(None)
++            self.scatt_mgr.SetPlotsMode(None)
++        self.scatt_mgr.modeSet.connect(self.ModeSet)
 +
++    def ModeSet(self, mode):
++
++        if mode in ['zoom', 'pan']:
++            self.UnsetMode()
++
++    def UnsetMode(self):
++        for i_tool_data in  self._data:
++                i_tool_name = i_tool_data[0]
++                if not i_tool_name:
++                    continue
++                i_tool_id = vars(self)[i_tool_name]
++                self.ToggleTool(i_tool_id, False)
++
 +    def GetToolId(self, toolName):
 +        return vars(self)[toolName]            
 Index: gui/wxpython/scatt_plot/scatt_core.py
@@ -3830,7 +3114,7 @@
 ===================================================================
 --- gui/wxpython/scatt_plot/frame.py	(revision 0)
 +++ gui/wxpython/scatt_plot/frame.py	(working copy)
-@@ -0,0 +1,555 @@
+@@ -0,0 +1,567 @@
 +"""!
 + at package scatt_plot.dialogs
 +
@@ -3903,8 +3187,8 @@
 +        #self.SplitHorizontally(self.head_panel, self.plot_panel, -50)
 +        self.Layout()
 +
-+    def NewScatterPlot(self, scatt_id):
-+        return self.plot_panel.NewScatterPlot(scatt_id)
++    def NewScatterPlot(self, scatt_id, transpose):
++        return self.plot_panel.NewScatterPlot(scatt_id, transpose)
 +
 +    def ShowPlotEditingToolbar(self, show):
 +        self.toolbars["editingToolbar"].Show(show)
@@ -4021,22 +3305,34 @@
 +    def _getScatterPlotName(self, scatt_id):
 +        return "scatter plot %d" % scatt_id
 +
-+    def NewScatterPlot(self, scatt_id):
++    def NewScatterPlot(self, scatt_id, transpose):
 +        #TODO needs to be resolved (should be in this class)
 +
 +        scatt = ScatterPlotWidget(parent = self.mainPanel, 
 +                                  scatt_mgr = self.scatt_mgr, 
-+                                  scatt_id = scatt_id)
++                                  scatt_id = scatt_id, 
++                                  transpose = transpose)
 +        scatt.plotClosed.connect(self.ScatterPlotClosed)
 +
 +        bands = self.scatt_mgr.GetBands()
++
 +        #TODO too low level
 +        b1_id, b2_id = idScattToidBands(scatt_id, len(bands))
 +
++        x_b =  bands[b1_id].split('@')[0]
++        y_b = bands[b2_id].split('@')[0]
++
++        if transpose:
++            tmp = x_b
++            x_b = y_b
++            y_b = tmp
++
++        caption = "%s x: %s y: %s" % (_("scatter plot"), x_b, y_b)
++
 +        self._mgr.AddPane(scatt,
 +                           aui.AuiPaneInfo().Dockable(True).Floatable(True).
 +                           Name(self._getScatterPlotName(scatt_id)).MinSize((-1, 300)).
-+                           Caption(("%s x: %s y: %s") % (_("scatter plot"), bands[b1_id], bands[b2_id])).
++                           Caption(caption).
 +                           Center().Position(1).MaximizeButton(True).
 +                           MinimizeButton(True).CaptionVisible(True).
 +                           CloseButton(True).Layer(0))
@@ -4281,13 +3577,13 @@
 +        self.labels = {}
 +        self.params = {}
 +
-+        self.band_1_label = wx.StaticText(parent = self, id = wx.ID_ANY, label = _("Band 1:"))
++        self.band_1_label = wx.StaticText(parent = self, id = wx.ID_ANY, label = _("x axis:"))
 +
 +        self.band_1_ch = wx.ComboBox(parent = self, id = wx.ID_ANY,
 +                                     choices = self.bands,
 +                                     style = wx.CB_READONLY, size = (350, 30))
 +
-+        self.band_2_label = wx.StaticText(parent = self, id = wx.ID_ANY, label = _("Band 2:"))
++        self.band_2_label = wx.StaticText(parent = self, id = wx.ID_ANY, label = _("y axis:"))
 +
 +        self.band_2_ch = wx.ComboBox(parent = self, id = wx.ID_ANY,
 +                                     choices = self.bands,
@@ -4402,1204 +3698,2152 @@
 +    'scatt_core',
 +    'core_c',
 +    ]
-Index: gui/wxpython/Makefile
+Index: gui/wxpython/scatt_plot/plots.py
 ===================================================================
---- gui/wxpython/Makefile	(revision 57581)
-+++ gui/wxpython/Makefile	(working copy)
-@@ -13,7 +13,7 @@
- 	$(wildcard animation/* core/*.py dbmgr/* gcp/*.py gmodeler/* \
- 	gui_core/*.py iclass/* lmgr/*.py location_wizard/*.py mapwin/*.py mapdisp/*.py \
- 	mapswipe/* modules/*.py nviz/*.py psmap/* rlisetup/* timeline/* vdigit/* \
--	vnet/*.py web_services/*.py wxplot/*.py) \
-+	vnet/*.py web_services/*.py wxplot/*.py scatt_plot/*.py) \
- 	gis_set.py gis_set_error.py wxgui.py README
- 
- DSTFILES := $(patsubst %,$(ETCDIR)/%,$(SRCFILES)) \
-@@ -21,8 +21,9 @@
- 
- PYDSTDIRS := $(patsubst %,$(ETCDIR)/%,animation core dbmgr gcp gmodeler \
- 	gui_core iclass lmgr location_wizard mapwin mapdisp modules nviz psmap \
--	mapswipe vdigit wxplot web_services rlisetup vnet timeline)
-+	mapswipe vdigit wxplot web_services rlisetup vnet timeline scatt_plot)
- 
+--- gui/wxpython/scatt_plot/plots.py	(revision 0)
++++ gui/wxpython/scatt_plot/plots.py	(working copy)
+@@ -0,0 +1,817 @@
++"""!
++ at package scatt_plot.dialogs
 +
- DSTDIRS := $(patsubst %,$(ETCDIR)/%,icons scripts xml)
- 
- default: $(DSTFILES)
-Index: lib/imagery/scatt.c
-===================================================================
---- lib/imagery/scatt.c	(revision 0)
-+++ lib/imagery/scatt.c	(working copy)
-@@ -0,0 +1,746 @@
-+/*!
-+   \file lib/imagery/scatt.c
++ at brief Ploting widgets.
 +
-+   \brief Imagery library - functions for wx Scatter Plot Tool.
++Classes:
 +
-+   Low level functions used by wx Scatter Plot Tool.
++(C) 2013 by the GRASS Development Team
 +
-+   Copyright (C) 2013 by the GRASS Development Team
++This program is free software under the GNU General Public License
++(>=v2). Read the file COPYING that comes with GRASS for details.
 +
-+   This program is free software under the GNU General Public License
-+   (>=v2).  Read the file COPYING that comes with GRASS for details.
++ at author Stepan Turek <stepan.turek seznam.cz> (mentor: Martin Landa)
++"""
++import wx
++import numpy as np
 +
-+   \author Stepan Turek <stepan.turek at seznam.cz> (Mentor: Martin Landa)
-+ */
++#TODO testing
++import time
++from multiprocessing import Process, Queue
 +
-+#include <grass/raster.h>
-+#include <grass/imagery.h>
-+#include <grass/gis.h>
-+#include <grass/glocale.h>
++#TODO
++#from numpy.lib.stride_tricks import as_strided
++from copy import deepcopy
 +
-+#include <stdio.h>
-+#include <stdlib.h>
-+#include <math.h>
-+#include <string.h>
++try:
++    import matplotlib
++    matplotlib.use('WXAgg')
++    from matplotlib.figure import Figure
++    from matplotlib.backends.backend_wxagg import \
++    FigureCanvasWxAgg as FigCanvas, \
++    NavigationToolbar2WxAgg as NavigationToolbar
++    from matplotlib.lines import Line2D
++    from matplotlib.artist import Artist
++    from matplotlib.mlab import dist_point_to_segment
++    from matplotlib.patches import Polygon, Ellipse, Rectangle
++    import matplotlib.image as mi
++    import matplotlib.colors as mcolors
++    import matplotlib.cbook as cbook
++except ImportError as e:
++    raise ImportError(_("Unable to import matplotlib (try to install it).\n%s") % e)
 +
 +
-+struct rast_row
-+{
-+    CELL * row;
-+    char * null_row;
-+    struct Range rast_range; /*Range of whole raster.*/
-+};
++import grass.script as grass
++from grass.pydispatch.signal import Signal
 +
-+/*!
-+   \brief Create pgm header.
++#class PlotImages()?
 +
-+   Scatter plot internally generates pgm files. These pgms have header in format created by this function.
++class ScatterPlotWidget(wx.Panel):
++    def __init__(self, parent, scatt_id, scatt_mgr, transpose,
++                 id = wx.ID_ANY):
++
++        wx.Panel.__init__(self, parent, id)
++
++        self.parent = parent
++        self.full_extend = None
++        self.mode = None
++
++        self._createWidgets()
++        self._doLayout()
++        self.scatt_id = scatt_id
++        self.scatt_mgr = scatt_mgr
++
++        self.cidpress = None
++        self.cidrelease = None
++
++        self.transpose = transpose
++
++        self.inverse = False
++
++        self.SetSize((200, 100))
++        self.Layout()
++
++        self.base_scale = 1.2
++        self.Bind(wx.EVT_CLOSE,lambda event : self.CleanUp())
++
++        self.plotClosed = Signal("ScatterPlotWidget.plotClosed")
++
++        #self.contex_menu = ScatterPlotContextMenu(plot = self)
++
++        self.ciddscroll = None
++
++        self.canvas.mpl_connect('motion_notify_event', self.Motion)
++        self.canvas.mpl_connect('button_press_event', self.OnPress)
++        self.canvas.mpl_connect('button_release_event', self.OnRelease)
++        self.canvas.mpl_connect('draw_event', self.draw_callback)
++
++    def draw_callback(self, event):
++        self.polygon_drawer.draw_callback(event)
++        self.axes.draw_artist(self.zoom_rect)
++
++    def _createWidgets(self):
++
++        # Create the mpl Figure and FigCanvas objects. 
++        # 5x4 inches, 100 dots-per-inch
++        #
++        self.dpi = 100
++        self.fig = Figure((1.0, 1.0), dpi=self.dpi)
++        self.canvas = FigCanvas(self, -1, self.fig)
++
++        self.axes = self.fig.add_axes([0,0,1,1])
++
++        pol = Polygon(list(zip([0], [0])), animated=True)
++        self.axes.add_patch(pol)
++        self.polygon_drawer = PolygonDrawer(self.axes, pol = pol, empty_pol = True)
++
++        self.zoom_wheel_coords = None
++        self.zoom_rect_coords = None
++        self.zoom_rect = Polygon(list(zip([0], [0])), facecolor = 'none')
++        self.zoom_rect.set_visible(False)
++        self.axes.add_patch(self.zoom_rect)
++
++        self.toolbar = NavigationToolbar(self.canvas)
++
++    def ZoomToExtend(self):
++        if self.full_extend:
++            self.axes.axis(self.full_extend)
++            self.canvas.draw()
++
++    def SetMode(self, mode):
++        self._deactivateMode()
++        if mode == 'zoom':
++            self.ciddscroll = self.canvas.mpl_connect('scroll_event', self.ZoomWheel)
++            self.mode = 'zoom'
++        elif mode == 'pan':
++            #self.toolbar.pan()
++            self.mode = 'pan'
++        elif mode:
++            self.polygon_drawer.SetMode(mode)
++
++    def GetCoords(self):
++
++        coords = self.polygon_drawer.GetCoords()
++        if coords is None:
++            return
++
++        if self.transpose:
++            for c in coords:
++                tmp = c[0]
++                c[0] = c[1]
++                c[1] = tmp
++
++        return coords
++
++    def SetEmpty(self):
++        return self.polygon_drawer.SetEmpty()
++
++    def _deactivateMode(self):
++
++        #TODO do own pan
++        #if self.toolbar._active == "PAN":
++        self.mode  = None
++
++        if self.toolbar._active == "ZOOM":
++            self.toolbar.zoom()
++
++        if self.ciddscroll:
++            self.canvas.mpl_disconnect(self.ciddscroll)
++
++        self.zoom_rect.set_visible(False)
++        self._stopCategoryEdit()
++
++    def OnRelease(self, event):
++        if not self.mode == "zoom": return
++        self.zoom_rect.set_visible(False)
++        self.ZoomRectangle(event)
++        self.canvas.draw()
 +    
-+   \param region region to be pgm header generated for 
-+   \param [out] header header of pgm file
-+ */
-+static int get_cat_rast_header(struct Cell_head * region, char * header){
-+    return sprintf(header, "P5\n%d\n%d\n1\n", region->cols, region->rows);
-+}
++    def OnPress(self, event):
++        'on button press we will see if the mouse is over us and store some data'
++        if not event.inaxes:
++            return
++            
++        if event.xdata and event.ydata:
++            self.zoom_wheel_coords = { 'x' : event.xdata, 'y' : event.ydata}
++            self.zoom_rect_coords = { 'x' : event.xdata, 'y' : event.ydata}
++        else:
++            self.zoom_wheel_coords = None
++            self.zoom_rect_coords = None
 +
-+/*!
-+   \brief Create category raster conditions file.
++    def _stopCategoryEdit(self):
++        'disconnect all the stored connection ids'
++
++        if self.cidpress:
++            self.canvas.mpl_disconnect(self.cidpress)
++        if self.cidrelease:
++            self.canvas.mpl_disconnect(self.cidrelease)
++        #self.canvas.mpl_disconnect(self.cidmotion)
++
++    def _doLayout(self):
++        
++        self.main_sizer = wx.BoxSizer(wx.VERTICAL)
++        self.main_sizer.Add(self.canvas, 1, wx.LEFT | wx.TOP | wx.GROW)
++        #self.main_sizer.Add(self.toolbar, 0, wx.EXPAND)        
++        self.SetSizer(self.main_sizer)
++        self.main_sizer.Fit(self)
 +    
-+   \param cat_rast_region region to be file generated for
-+   \param cat_rast path of generated category raster file
-+ */
-+int I_create_cat_rast(struct Cell_head * cat_rast_region,  const char * cat_rast)
-+{
-+    FILE * f_cat_rast;
-+    char cat_rast_header[1024];//TODO magic number 
-+    int i_row, i_col;
-+    int head_nchars;
++    def Plot(self, scatts, ellipses, styles):
++        """ Redraws the figure
++        """
 +
-+    unsigned char * row_data;
++        callafter_list = []
 +
-+    f_cat_rast = fopen(cat_rast, "wb");
-+    if(!f_cat_rast) {
-+        G_warning("Unable to create category raster condition file <%s>.", cat_rast);
-+        return -1;
-+    }
 +
-+    head_nchars = get_cat_rast_header(cat_rast_region, cat_rast_header);
++        if self.full_extend:
++            cx = self.axes.get_xlim()
++            cy = self.axes.get_ylim()
++            c = cx + cy
++        else:
++            c = None
 +
-+    fwrite(cat_rast_header, sizeof(char), head_nchars/sizeof(char), f_cat_rast);
-+    if (ferror(f_cat_rast)){
-+        fclose(f_cat_rast);
-+        G_warning(_("Unable to write header into category raster condition file <%s>."), cat_rast);
-+        return -1;
-+    }
++        q = Queue()
++        p = Process(target=MergeImg, args=(scatts, styles, self.transpose, q))
++        p.start()
++        merged_img, self.full_extend = q.get()
++        p.join()
 +
-+    row_data = (unsigned char *) G_malloc(cat_rast_region->cols * sizeof(unsigned char));
-+    for(i_col = 0; i_col < cat_rast_region->cols; i_col++)
-+        row_data[i_col] = 0 & 255;
++        self.axes.clear()
++        img = imshow(self.axes, merged_img,
++                     origin = 'lower',
++                     extent = self.full_extend, 
++                     interpolation='nearest',
++                     aspect = "auto")
 +
-+    for(i_row = 0; i_row < cat_rast_region->rows; i_row++) {
-+        fwrite(row_data, sizeof(unsigned char), (cat_rast_region->cols)/sizeof(unsigned char), f_cat_rast);
-+        if (ferror(f_cat_rast))
-+        {
-+            fclose(f_cat_rast);
-+            G_warning(_("Unable to write into category raster condition file <%s>."), cat_rast);
-+            return -1;
-+        }
-+    }
++        callafter_list.append([self.axes.draw_artist, [img]])
++        callafter_list.append([grass.try_remove, [merged_img.filename]])
 +
-+    fclose(f_cat_rast);
-+    return 0;
-+}
++        for cat_id, e in ellipses.iteritems():
++            if cat_id == 0 or not e:
++                continue
 +
-+static int print_reg(struct Cell_head * intersec, const char * pref, int dbg_level)
-+{
-+    G_debug(dbg_level, "%s:\n n:%f\ns:%f\ne:%f\nw:%f\nns_res:%f\new_res:%f", pref, intersec->north, intersec->south, 
-+               intersec->east, intersec->west, intersec->ns_res, intersec->ew_res);
-+}
++            colors = styles[cat_id]['color'].split(":")
++            if self.transpose:
++                angle = 360 - e['theta'] + 90
++                if angle >= 360:
++                    angle = abs(360 - angle) 
++                
++                xy = [e['pos'][1], e['pos'][0]]
++                ellip = Ellipse(xy=xy, 
++                                width=e['width'], 
++                                height=e['height'], 
++                                angle=angle, 
++                                edgecolor="r", 
++                                facecolor = 'None')
++            else:
++                ellip = Ellipse(xy=e['pos'], 
++                                width=e['width'], 
++                                height=e['height'], 
++                                angle=e['theta'], 
++                                edgecolor="r", 
++                                facecolor = 'None')
 +
-+/*!
-+   \brief Find intersection region of two regions.
++            self.axes.add_artist(ellip)
++            callafter_list.append([self.axes.draw_artist, [ellip]])
 +
-+   \param A pointer to intersected region
-+   \param B pointer to intersected region
-+   \param [out] intersec pointer to intersection region of regions A B (relevant params of the region are: south, north, east, west)
++        callafter_list.append([self.fig.canvas.blit, []])
 +
-+   \return  0 if interection exists
-+   \return -1 if regions does not intersect
-+ */
-+static int regions_intersecion(struct Cell_head * A, struct Cell_head * B, struct Cell_head * intersec)
-+{
++        if c:
++            self.axes.axis(c)
++        wx.CallAfter(lambda : self.CallAfter(callafter_list))
++    
++    def CallAfter(self, funcs_list):
++        while funcs_list: 
++            fcn, args = funcs_list.pop(0) 
++            fcn(*args) 
 +
-+    if(B->north < A->south) return -1;
-+    else if(B->north > A->north) intersec->north = A->north;
-+    else intersec->north = B->north;
++        self.canvas.draw()
 +
-+    if(B->south > A->north) return -1;
-+    else if(B->south < A->south) intersec->south = A->south;
-+    else intersec->south = B->south;
++    def CleanUp(self):
++        self.plotClosed.emit(scatt_id = self.scatt_id)
++        self.Destroy()
 +
-+    if(B->east < A->west) return -1;
-+    else if(B->east > A->east) intersec->east = A->east;
-+    else intersec->east = B->east;
++    def ZoomWheel(self, event):
++        # get the current x and y limits
++        if not event.inaxes:
++            return
++        # tcaswell
++        # http://stackoverflow.com/questions/11551049/matplotlib-plot-zooming-with-scroll-wheel
++        cur_xlim = self.axes.get_xlim()
++        cur_ylim = self.axes.get_ylim()
++        
++        xdata = event.xdata
++        ydata = event.ydata 
++        if event.button == 'up':
++            scale_factor = 1/self.base_scale
++        elif event.button == 'down':
++            scale_factor = self.base_scale
++        else:
++            scale_factor = 1
 +
-+    if(B->west > A->east) return -1;
-+    else if(B->west < A->west) intersec->west = A->west;
-+    else intersec->west = B->west;
++        extend = (xdata - (xdata - cur_xlim[0]) * scale_factor,
++                  xdata + (cur_xlim[1] - xdata) * scale_factor, 
++                  ydata - (ydata - cur_ylim[0]) * scale_factor,
++                  ydata + (cur_ylim[1] - ydata) * scale_factor)
 +
-+    if(intersec->north == intersec->south) return -1;
++        self.axes.axis(extend)
++        
++        self.canvas.draw()
 +
-+    if(intersec->east == intersec->west) return -1;
 +
-+    return 0;
++    def ZoomRectangle(self, event):
++        # get the current x and y limits
++        if not self.mode == "zoom": return
++        if event.inaxes is None: return
++        if event.button != 1: return
 +
-+}
++        cur_xlim = self.axes.get_xlim()
++        cur_ylim = self.axes.get_ylim()
++        
++        x1, y1 = event.xdata, event.ydata
++        x2 = self.zoom_rect_coords['x']
++        y2 = self.zoom_rect_coords['y']
 +
-+/*!
-+   \brief Get rows and cols numbers, which defines intersection of the regions.
-+  
-+   \param A pointer to intersected region
-+   \param B pointer to intersected region (A and B must have same resolution)
-+   \param [out] A_bounds rows and cols numbers of A stored in south, north, east, west, which defines intersection of A and B
-+   \param [out] B_bounds rows and cols numbers of B stored in south, north, east, west, which defines intersection of A and B
++        dx = abs(x1 - x2)
++        dy = abs(y1 - y2)
 +
-+   \return  0 if interection exists
-+   \return -1 if regions do not intersect
-+   \return -2 resolution of regions is not same 
-+*/
-+static int get_rows_and_cols_bounds(struct Cell_head * A,  struct Cell_head * B, struct Cell_head * A_bounds,  struct Cell_head * B_bounds)
-+{
-+    float ns_res, ew_res;
 +
-+    struct Cell_head intersec;
++        self.axes.set_xlim(x1, x2)
++        self.axes.set_ylim(y1, y2)
++    
++    def Motion(self, event):
++        self.PanMotion(event)
++        self.ZoomRectMotion(event)
 +
-+    /* TODO is it right check? */
-+    if(abs(A->ns_res - B->ns_res) > GRASS_EPSILON) {
-+        G_debug(0, "'get_rows_and_cols_bounds' ns_res does not fit, A->ns_res: %f B->ns_res: %f", A->ns_res, B->ns_res);
-+        return -2;
-+    }
++    def PanMotion(self, event):
++        'on mouse movement'
++        if not self.mode == "pan": return
++        if event.inaxes is None: return
++        if event.button != 1: return
 +
-+    if(abs(A->ew_res - B->ew_res) > GRASS_EPSILON) {
-+        G_debug(0, "'get_rows_and_cols_bounds' ew_res does not fit, A->ew_res: %f B->ew_res: %f", A->ew_res, B->ew_res);
-+        return -2;
-+    }
++        cur_xlim = self.axes.get_xlim()
++        cur_ylim = self.axes.get_ylim()
 +
-+    ns_res = A->ns_res;
-+    ew_res = A->ew_res;
++        x,y = event.xdata, event.ydata
++        
++        mx = (x - self.zoom_wheel_coords['x']) * 0.5
++        my = (y - self.zoom_wheel_coords['y']) * 0.5
 +
-+    if(regions_intersecion(A, B, &intersec) == -1)
-+        return -1;
++        extend = (cur_xlim[0] + mx, cur_xlim[1] + mx, cur_ylim[0] + my, cur_ylim[1] + my)
 +
-+    A_bounds->north = ceil((A->north - intersec.north - ns_res * 0.5) / ns_res);
-+    A_bounds->south = ceil((A->north - intersec.south - ns_res * 0.5) / ns_res);
++        self.zoom_wheel_coords['x'] = x
++        self.zoom_wheel_coords['y'] = y
 +
-+    A_bounds->east = ceil((intersec.east - A->west - ew_res * 0.5) / ew_res);
-+    A_bounds->west = ceil((intersec.west - A->west - ew_res * 0.5) / ew_res);
++        self.axes.axis(extend)
 +
-+    B_bounds->north = ceil((B->north - intersec.north - ns_res * 0.5) / ns_res);
-+    B_bounds->south = ceil((B->north - intersec.south - ns_res * 0.5) / ns_res);
++        #self.canvas.copy_from_bbox(self.axes.bbox)
++        #self.canvas.restore_region(self.background)
++        self.canvas.draw()
++        
++    def ZoomRectMotion(self, event):
++        if not self.mode == "zoom": return
++        if event.inaxes is None: return
++        if event.button != 1: return
 +
-+    B_bounds->east = ceil((intersec.east - B->west - ew_res * 0.5) / ew_res);
-+    B_bounds->west = ceil((intersec.west - B->west - ew_res * 0.5) / ew_res);
++        x1, y1 = event.xdata, event.ydata
++        self.zoom_rect.set_visible(True)
++        x2 = self.zoom_rect_coords['x']
++        y2 = self.zoom_rect_coords['y']
 +
-+    return 0;
-+}
++        self.zoom_rect.xy = ((x1, y1), (x1, y2), (x2, y2), (x2, y1), (x1, y1))
 +
-+/*!
-+   \brief Insert raster map patch into pgm file.
-+  
-+   \param patch_rast name of raster map
-+   \param cat_rast_region region of category raster file
-+   \param cat_rast path to category raster file
++        self.axes.draw_artist(self.zoom_rect)
++        self.canvas.draw()
 +
-+   \return  0 on success
-+   \return -1 on failure
-+*/
-+int I_insert_patch_to_cat_rast(const char * patch_rast, struct Cell_head * cat_rast_region,  const char * cat_rast)
-+{
++class ScatterPlotContextMenu:
++    def __init__(self, plot):
 +
-+    FILE * f_cat_rast;
-+    struct Cell_head patch_region, patch_bounds, cat_rast_bounds;
-+    char cat_rast_header[1024];//TODO magic number 
-+    int i_row, i_col, ncols, nrows, cat_rast_col, patch_col, val;
-+    int head_nchars, ret;
-+    int fd_patch_rast, init_shift, step_shift;
-+    unsigned char * patch_data;
++        self.plot = plot
++        self.canvas = plot.canvas
++        self.cidpress = self.canvas.mpl_connect(
++            'button_press_event', self.ContexMenu)
++   
++    def ContexMenu(self, event):
++        if not event.inaxes:
++            return
 +
-+    char * null_chunk_row;
++        if event.button == 3:
++            menu = wx.Menu()       
++            menu_items = [["zoom_to_extend", _("Zoom to scatter plot extend"), lambda event : self.plot.ZoomToExtend()]]
 +
-+    const char *mapset;
++            for item in menu_items:
++                item_id = wx.ID_ANY
++                menu.Append(item_id, text = item[1])
++                menu.Bind(wx.EVT_MENU, item[2], id = item_id)
 +
-+    struct Cell_head patch_lines, cat_rast_lines;
++            wx.CallAfter(self.ShowMenu, menu) 
++   
++    def ShowMenu(self, menu):
++        self.plot.PopupMenu(menu)
++        menu.Destroy()
++        self.plot.ReleaseMouse() 
 +
-+    unsigned char * row_data;
++class PolygonDrawer:
++    """
++    An polygon editor.
++    """
 +
-+    f_cat_rast = fopen(cat_rast, "rb+");
-+    if(!f_cat_rast) {
-+        G_warning(_("Unable to open category raster condtions file <%s>."), cat_rast);
-+        return -1;
-+    }
++    showverts = True
++    epsilon = 5  #TODO settings max pixel distance to count as a vertex hit
++    def __init__(self, ax, pol, empty_pol):
++        if pol.figure is None:
++            raise RuntimeError('You must first add the polygon to a figure or canvas before defining the interactor')
++        self.ax = ax
++        self.canvas = pol.figure.canvas
 +
-+    head_nchars = get_cat_rast_header(cat_rast_region, cat_rast_header);
-+    if ((mapset = G_find_raster(patch_rast,"")) == NULL) {
-+        fclose(f_cat_rast);
-+        G_warning(_("Unable to find patch raster <%s>."), patch_rast);
-+        return -1;
-+    }
++        self.pol = pol
++        self.empty_pol = empty_pol
 +
-+    Rast_get_cellhd(patch_rast, mapset, &patch_region);
-+    Rast_set_window(&patch_region);
-+            
-+    if ((fd_patch_rast = Rast_open_old(patch_rast, mapset)) < 0) {
-+        fclose(f_cat_rast);
-+        return -1;
-+    }
++        x, y = zip(*self.pol.xy)
++        self.line = Line2D(x, y, marker='o', markerfacecolor='r', animated=True)
++        self.ax.add_line(self.line)
++        #self._update_line(pol)
 +
-+    ret = get_rows_and_cols_bounds(cat_rast_region, &patch_region, &cat_rast_bounds, &patch_bounds);
-+    if(ret == -2) { 
-+        G_warning(_("Resolutions of patch <%s> and patched file <%s> are not same."), patch_rast, cat_rast);
++        cid = self.pol.add_callback(self.poly_changed)
++        self.moving_ver_idx = None # the active vert
 +
-+        Rast_close(fd_patch_rast);
-+        fclose(f_cat_rast);
++        self.mode = None
 +
-+        return -1;
-+    }
-+    else if (ret == -1){
++        if self.empty_pol:
++            self.Show(False)
 +
-+        Rast_close(fd_patch_rast);
-+        fclose(f_cat_rast);
++        #self.canvas.mpl_connect('draw_event', self.draw_callback)
++        self.canvas.mpl_connect('button_press_event', self.OnButtonPressed)
++        self.canvas.mpl_connect('button_release_event', self.button_release_callback)
++        self.canvas.mpl_connect('motion_notify_event', self.motion_notify_callback)
++    
++        self.it = 0
++    def SetMode(self, mode):
++        self.mode = mode
 +
-+        return 0;
-+    }
++    def GetCoords(self):
++        if self.empty_pol:
++            return None
 +
-+    ncols = cat_rast_bounds.east - cat_rast_bounds.west;
-+    nrows = cat_rast_bounds.south - cat_rast_bounds.north;
++        coords = deepcopy(self.pol.xy)
++        return coords
 +
-+    patch_data = (unsigned char *) G_malloc(ncols * sizeof(unsigned char));
++    def SetEmpty(self):
++        self._setEmptyPol(True)
 +
-+    init_shift = head_nchars + cat_rast_region->cols * cat_rast_bounds.north + cat_rast_bounds.west;
++    def _setEmptyPol(self, empty_pol):
++        self.empty_pol = empty_pol
++        self.Show(not empty_pol)
 +
-+    if(fseek(f_cat_rast, init_shift, SEEK_SET) != 0) {
-+        G_warning(_("Corrupted  category raster conditions file <%s> (fseek failed)"), cat_rast);
++    def Show(self, show):
 +
-+        Rast_close(fd_patch_rast);
-+        G_free(null_chunk_row);
-+        fclose(f_cat_rast);
++        self.show = show
 +
-+        return -1;
-+    }
++        self.line.set_visible(self.show)
++        self.pol.set_visible(self.show)
 +
-+    step_shift = cat_rast_region->cols - ncols;
++        self.Redraw()
 +
-+    null_chunk_row =  Rast_allocate_null_buf();
++    def Redraw(self):
++        if self.show:
++            self.ax.draw_artist(self.pol)
++            self.ax.draw_artist(self.line)
++        self.canvas.blit(self.ax.bbox)
++        self.canvas.draw()
++
++    def draw_callback(self, event):
++        self.background = self.canvas.copy_from_bbox(self.ax.bbox)
++        self.ax.draw_artist(self.pol)
++        self.ax.draw_artist(self.line)
 +    
-+    for(i_row = 0; i_row < nrows; i_row++) {
-+        Rast_get_null_value_row (fd_patch_rast, null_chunk_row, i_row + patch_bounds.north);
++    def poly_changed(self, pol):
++        'this method is called whenever the polygon object is called'
++        # only copy the artist props to the line (except visibility)
++        vis = self.line.get_visible()
++        Artist.update_from(self.line, pol)
++        self.line.set_visible(vis)  # don't use the pol visibility state
 +
-+        for(i_col = 0; i_col < ncols; i_col++) {
-+            patch_col = patch_bounds.west + i_col;
++    def get_ind_under_point(self, event):
++        'get the index of the vertex under point if within epsilon tolerance'
 +
-+            if(null_chunk_row[patch_col] != 1) 
-+                patch_data[i_col] = 1 & 255;
-+            else {
-+                patch_data[i_col] = 0 & 255;
-+            }
-+        }
++        # display coords
++        xy = np.asarray(self.pol.xy)
++        xyt = self.pol.get_transform().transform(xy)
++        xt, yt = xyt[:, 0], xyt[:, 1]
++        d = np.sqrt((xt-event.x)**2 + (yt-event.y)**2)
++        indseq = np.nonzero(np.equal(d, np.amin(d)))[0]
++        ind = indseq[0]
 +
-+        fwrite(patch_data, sizeof(unsigned char), (ncols)/sizeof(unsigned char), f_cat_rast);
-+        if (ferror(f_cat_rast))
-+        {
-+            G_warning(_("Unable to write into category raster conditions file <%s>"), cat_rast);
++        if d[ind]>=self.epsilon:
++            ind = None
++
++        return ind
++
++    def OnButtonPressed(self, event):
++        if not event.inaxes:
++            return
++
++        if event.button in [2, 3]: 
++            return
++
++        if self.mode == "delete_vertex":
++            self._deleteVertex(event)
++        elif self.mode == "add_boundary_vertex":
++            self._addVertexOnBoundary(event)
++        elif self.mode == "add_vertex":
++            self._addVertex(event)
++        self.moving_ver_idx = self.get_ind_under_point(event)
++
++    def button_release_callback(self, event):
++        'whenever a mouse button is released'
++        if not self.showverts: return
++        if event.button != 1: return
++        self.moving_ver_idx = None
++
++    def ShowVertices(self, show):
++        self.showverts = show
++        self.line.set_visible(self.showverts)
++        if not self.showverts: self.moving_ver_idx = None
++
++    def _deleteVertex(self, event):
++        ind = self.get_ind_under_point(event)
++
++        if ind  is None or self.empty_pol:
++            return
++
++        if len(self.pol.xy) <= 2:
++            self.empty_pol = True
++            self.Show(False)
++            return
++
++        coords = []
++        for i,tup in enumerate(self.pol.xy): 
++            if i == ind:
++                continue
++            elif i == 0 and ind == len(self.pol.xy) - 1:
++                continue
++            elif i == len(self.pol.xy) - 1 and ind == 0: 
++                continue
++
++            coords.append(tup)
++
++        self.pol.xy = coords
++        self.line.set_data(zip(*self.pol.xy))
++
++        self.Redraw()
++
++    def _addVertexOnBoundary(self, event):
++        if self.empty_pol:
++            return
++
++        xys = self.pol.get_transform().transform(self.pol.xy)
++        p = event.x, event.y # display coords
++        for i in range(len(xys)-1):
++            s0 = xys[i]
++            s1 = xys[i+1]
++            d = dist_point_to_segment(p, s0, s1)
++
++            if d<=self.epsilon:
++                self.pol.xy = np.array(
++                    list(self.pol.xy[:i + 1]) +
++                    [(event.xdata, event.ydata)] +
++                    list(self.pol.xy[i + 1:]))
++                self.line.set_data(zip(*self.pol.xy))
++                break
++
++        self.Redraw()
++
++    def _addVertex(self, event):
++
++        if self.empty_pol:
++            pt = (event.xdata, event.ydata)
++            self.pol.xy = np.array([pt, pt])
++            self.Show(True)
++            self.empty_pol = False
++        else:
++            self.pol.xy = np.array(
++                        [(event.xdata, event.ydata)] +
++                        list(self.pol.xy[1:]) +
++                        [(event.xdata, event.ydata)])
++
++        self.line.set_data(zip(*self.pol.xy))
++        
++        self.Redraw()
++
++    def motion_notify_callback(self, event):
++        'on mouse movement'
++        if not self.mode == "move_vertex": return
++        if not self.showverts: return
++        if self.empty_pol: return
++        if self.moving_ver_idx is None: return
++        if event.inaxes is None: return
++        if event.button != 1: return
++
++        self.it += 1
++
++        x,y = event.xdata, event.ydata
++
++        self.pol.xy[self.moving_ver_idx] = x,y
++        if self.moving_ver_idx == 0:
++            self.pol.xy[len(self.pol.xy) - 1] = x,y
++        elif self.moving_ver_idx == len(self.pol.xy) - 1:
++            self.pol.xy[0] = x,y
++
++        self.line.set_data(zip(*self.pol.xy))
++
++        self.canvas.restore_region(self.background)
++
++        self.Redraw()
++
++class ModestImage(mi.AxesImage):
++    """
++    Computationally modest image class.
++
++    ModestImage is an extension of the Matplotlib AxesImage class
++    better suited for the interactive display of larger images. Before
++    drawing, ModestImage resamples the data array based on the screen
++    resolution and view window. This has very little affect on the
++    appearance of the image, but can substantially cut down on
++    computation since calculations of unresolved or clipped pixels
++    are skipped.
++
++    The interface of ModestImage is the same as AxesImage. However, it
++    does not currently support setting the 'extent' property. There
++    may also be weird coordinate warping operations for images that
++    I'm not aware of. Don't expect those to work either.
++
++    Author: Chris Beaumont <beaumont at hawaii.edu>
++    """
++    def __init__(self, *args, **kwargs):
++        #why???
++        #if 'extent' in kwargs and kwargs['extent'] is not None:
++        #    raise NotImplementedError("ModestImage does not support extents")
++
++        self._full_res = None
++        self._sx, self._sy = None, None
++        self._bounds = (None, None, None, None)
++        super(ModestImage, self).__init__(*args, **kwargs)
++
++    def set_data(self, A):
++        """
++        Set the image array
++
++        ACCEPTS: numpy/PIL Image A
++        """
++        self._full_res = A
++        self._A = A
++
++        if self._A.dtype != np.uint8 and not np.can_cast(self._A.dtype,
++                                                         np.float):
++            raise TypeError("Image data can not convert to float")
++
++        if (self._A.ndim not in (2, 3) or
++            (self._A.ndim == 3 and self._A.shape[-1] not in (3, 4))):
++            raise TypeError("Invalid dimensions for image data")
++
++        self._imcache =None
++        self._rgbacache = None
++        self._oldxslice = None
++        self._oldyslice = None
++        self._sx, self._sy = None, None
++
++    def get_array(self):
++        """Override to return the full-resolution array"""
++        return self._full_res
++
++    def _scale_to_res(self):
++        """ Change self._A and _extent to render an image whose
++        resolution is matched to the eventual rendering."""
++
++        ax = self.axes
++        ext = ax.transAxes.transform([1, 1]) - ax.transAxes.transform([0, 0])
++        xlim, ylim = ax.get_xlim(), ax.get_ylim()
++        dx, dy = xlim[1] - xlim[0], ylim[1] - ylim[0]
++
++        y0 = max(0, ylim[0] - 5)
++        y1 = min(self._full_res.shape[0], ylim[1] + 5)
++        x0 = max(0, xlim[0] - 5)
++        x1 = min(self._full_res.shape[1], xlim[1] + 5)
++        y0, y1, x0, x1 = map(int, [y0, y1, x0, x1])
++
++        sy = int(max(1, min((y1 - y0) / 5., np.ceil(dy / ext[1]))))
++        sx = int(max(1, min((x1 - x0) / 5., np.ceil(dx / ext[0]))))
++
++        # have we already calculated what we need?
++        if sx == self._sx and sy == self._sy and \
++            x0 == self._bounds[0] and x1 == self._bounds[1] and \
++            y0 == self._bounds[2] and y1 == self._bounds[3]:
++            return
++
++        self._A = self._full_res[y0:y1:sy, x0:x1:sx]
++        self._A = cbook.safe_masked_invalid(self._A)
++        x1 = x0 + self._A.shape[1] * sx
++        y1 = y0 + self._A.shape[0] * sy
++
++        self.set_extent([x0 - .5, x1 - .5, y0 - .5, y1 - .5])
++        self._sx = sx
++        self._sy = sy
++        self._bounds = (x0, x1, y0, y1)
++        self.changed()
++
++    def draw(self, renderer, *args, **kwargs):
++        self._scale_to_res()
++        super(ModestImage, self).draw(renderer, *args, **kwargs)
++
++
++def imshow(axes, X, cmap=None, norm=None, aspect=None,
++           interpolation=None, alpha=None, vmin=None, vmax=None,
++           origin=None, extent=None, shape=None, filternorm=1,
++           filterrad=4.0, imlim=None, resample=None, url=None, **kwargs):
++    """Similar to matplotlib's imshow command, but produces a ModestImage
++
++    Unlike matplotlib version, must explicitly specify axes
++    Author: Chris Beaumont <beaumont at hawaii.edu>
++    """
++
++    if not axes._hold:
++        axes.cla()
++    if norm is not None:
++        assert(isinstance(norm, mcolors.Normalize))
++    if aspect is None:
++        aspect = rcParams['image.aspect']
++    axes.set_aspect(aspect)
++    im = ModestImage(axes, cmap, norm, interpolation, origin, extent,
++                            filternorm=filternorm,
++                            filterrad=filterrad, resample=resample, **kwargs)
++
++    im.set_data(X)
++    im.set_alpha(alpha)
++    axes._set_artist_props(im)
++
++    if im.get_clip_path() is None:
++        # image does not already have clipping set, clip to axes patch
++        im.set_clip_path(axes.patch)
++
++    #if norm is None and shape is None:
++    #    im.set_clim(vmin, vmax)
++    if vmin is not None or vmax is not None:
++        im.set_clim(vmin, vmax)
++    else:
++        im.autoscale_None()
++    im.set_url(url)
++
++    # update ax.dataLim, and, if autoscaling, set viewLim
++    # to tightly fit the image, regardless of dataLim.
++    im.set_extent(im.get_extent())
++
++    axes.images.append(im)
++    im._remove_method = lambda h: axes.images.remove(h)
++
++    return im
++
++def MergeImg(scatts, styles, transpose, output_queue):
++
++        init = True
++        merge_tmp = grass.tempfile()
++        for cat_id, scatt in scatts.iteritems():
++            #print "color map %d" % cat_id
++            #TODO make more general
++            if cat_id != 0 and (styles[cat_id]['opacity'] == 0.0 or \
++               not styles[cat_id]['show']):
++                continue
++            if init:
++                if transpose:
++                    b1_i = scatt['bands_info']['b1']
++                    b2_i = scatt['bands_info']['b2']
++                else:
++                    b2_i = scatt['bands_info']['b1']
++                    b1_i = scatt['bands_info']['b2']
++
++                full_extend = (b1_i['min'] - 0.5, b1_i['max'] + 0.5, b2_i['min'] - 0.5, b2_i['max'] + 0.5) 
 +            
-+            Rast_close(fd_patch_rast);
-+            G_free(null_chunk_row);
-+            fclose(f_cat_rast);
++            if cat_id == 0:
++                cmap = matplotlib.cm.jet
++                cmap.set_bad('w',1.)
++                cmap._init()
++                cmap._lut[len(cmap._lut) - 1, -1] = 0
++            else:
++                colors = styles[cat_id]['color'].split(":")
 +
-+            return -1;
-+        }
-+        if(fseek(f_cat_rast, step_shift, SEEK_CUR) != 0) {
-+            G_warning(_("Corrupted  category raster conditions file <%s> (fseek failed)"), cat_rast);
++                cmap = matplotlib.cm.jet
++                cmap.set_bad('w',1.)
++                cmap._init()
++                cmap._lut[len(cmap._lut) - 1, -1] = 0
++                cmap._lut[:, 0] = int(colors[0])/255.0
++                cmap._lut[:, 1] = int(colors[1])/255.0
++                cmap._lut[:, 2] = int(colors[2])/255.0
++
++            #if init:
++            if transpose:
++                masked_cat = np.ma.masked_less_equal(scatt['np_vals'].T, 0)
++            else:
++                masked_cat = np.ma.masked_less_equal(scatt['np_vals'], 0)
++
++            vmax = np.amax(masked_cat)
++            masked_cat = masked_cat / float(vmax)
++
++            colored_cat = np.uint8(cmap(masked_cat) * 255)
++            del masked_cat
++            del cmap
 +            
-+            Rast_close(fd_patch_rast);
-+            G_free(null_chunk_row);
-+            fclose(f_cat_rast);
++            #colored_cat[...,3] = np.choose(masked_cat.mask, (255, 0))
 +            
-+            return -1;
-+        }
-+    }
++            if init:
++                merged_img = np.memmap(merge_tmp, dtype='uint8', mode='w+', shape=colored_cat.shape)
++                merged_img[:] = colored_cat[:]
++                init = False
++            else:
++                #c_img_a = np.memmap(grass.tempfile(), dtype="uint16", mode='w+', shape = shape) 
++                c_img_a = colored_cat.astype('uint16')[:,:,3] * styles[cat_id]['opacity']
 +
-+    Rast_close(fd_patch_rast);
-+    G_free(null_chunk_row);
-+    fclose(f_cat_rast);
-+    return 0;
-+}
++                #TODO apply strides and there will be no need for loop
++                #b = as_strided(a, strides=(0, a.strides[3], a.strides[3], a.strides[3]), shape=(3, a.shape[0], a.shape[1]))
 +
-+/*!
-+   \brief Updates scatter plots data in category by pixels which meets category conditions.
-+  
-+   \param bands_rows data represents data describig one row from raster band
-+   \param belongs_pix array which defines which pixels belongs to category (1 value) and which not (0 value)
-+   \param [out] scatts pointer to scScatts struct of type SC_SCATT_DATA, which are modified according to values in belongs_pix
-+*/
-+static inline void update_cat_scatt_plts(struct rast_row * bands_rows, unsigned short * belongs_pix, struct scScatts * scatts)
-+{
-+    int band_axis_1, band_axis_2, i_scatt, array_idx, cat_idx, i_chunk_rows_pix, max_arr_idx;
++                for i in range(3):
++                    merged_img[:,:,i] = (merged_img[:,:,i] * (255 - c_img_a) + colored_cat[:,:,i] * c_img_a) / 255;
++                merged_img[:,:,3] = (merged_img[:,:,3] * (255 - c_img_a) + 255 * c_img_a) / 255;
++                
++                del c_img_a
++            
++            del colored_cat
++        output_queue.put((merged_img, full_extend))
++        #return merged_img, full_extend 
+\ No newline at end of file
+Index: gui/wxpython/scatt_plot/controllers.py
+===================================================================
+--- gui/wxpython/scatt_plot/controllers.py	(revision 0)
++++ gui/wxpython/scatt_plot/controllers.py	(working copy)
+@@ -0,0 +1,686 @@
++"""!
++ at package scatt_plot.controllers
 +
-+    CELL * b_1_row;
-+    CELL * b_2_row;
-+    char * b_1_null_row,* b_2_null_row;
-+    struct rast_row b_1_rast_row, b_2_rast_row;
++ at brief Controller layer for scatter plot tool.
 +
-+    struct Range b_1_range, b_2_range;
-+    int b_1_range_size;
++Classes:
 +
-+    int row_size = Rast_window_cols();
++(C) 2013 by the GRASS Development Team
 +
-+    int * scatts_bands = scatts->scatts_bands;
++This program is free software under the GNU General Public License
++(>=v2). Read the file COPYING that comes with GRASS for details.
 +
-+    for(i_scatt = 0; i_scatt < scatts->n_a_scatts; i_scatt++)
-+    {   
-+        b_1_rast_row = bands_rows[scatts_bands[i_scatt * 2]];
-+        b_2_rast_row = bands_rows[scatts_bands[i_scatt * 2 + 1]];
++ at author Stepan Turek <stepan.turek seznam.cz> (mentor: Martin Landa)
++"""
++import os
++import sys
 +
-+        b_1_row = b_1_rast_row.row;
-+        b_2_row = b_2_rast_row.row;
++#TODO just for testing
++import time
 +
-+        b_1_null_row =  b_1_rast_row.null_row;
-+        b_2_null_row =  b_2_rast_row.null_row;
++#TODO
++import wx
 +
-+        b_1_range = b_1_rast_row.rast_range;
-+        b_2_range = b_2_rast_row.rast_range;
++from core.gcmd import GException, GError, GMessage, RunCommand
++
++from scatt_plot.scatt_core import Core, idBandsToidScatt
++
++from scatt_plot.dialogs import AddScattPlotDialog
++from scatt_plot.gthreading import gThread
++from core.gconsole import EVT_CMD_DONE
++from grass.pydispatch.signal import Signal
++
++class ScattsManager(wx.EvtHandler):
++    def __init__(self, guiparent, giface, iclass_mapwin):
++        #TODO remove iclass parameter
++
++        wx.EvtHandler.__init__(self)
++        self.giface = giface
++        self.mapDisp  = giface.GetMapDisplay()
++
++        if iclass_mapwin:
++            self.mapWin = iclass_mapwin
++        else:
++            self.mapWin = giface.GetMapWindow()
++
++        self.guiparent = guiparent
++
++        self.show_add_scatt_plot = False
++
++        self.core = Core()
++        self.scatts_dt, self.scatt_conds_dt = self.core.GetScattsData()
++
++        self.cats_mgr = CategoriesManager(self, self.core)
++
++        self.thread = gThread(self);
 +        
-+        b_1_range_size = b_1_range.max - b_1_range.min + 1;
-+        max_arr_idx = (b_1_range.max -  b_1_range.min + 1) * (b_2_range.max -  b_2_range.min + 1);
++        self.plots = {}
++        self.added_cats_rasts = {}
 +
-+        for(i_chunk_rows_pix = 0; i_chunk_rows_pix < row_size; i_chunk_rows_pix++)
-+        {
-+            /* pixel does not belongs to scatter plot or has null value in one of the bands */
-+            if(!belongs_pix[i_chunk_rows_pix] || 
-+                b_1_null_row[i_chunk_rows_pix] == 1 || 
-+                b_2_null_row[i_chunk_rows_pix] == 1)                
-+                continue;
++        self.cats_to_update = []
 +
-+            /* index in scatter plot array */
-+            array_idx = b_1_row[i_chunk_rows_pix] - b_1_range.min + (b_2_row[i_chunk_rows_pix] - b_2_range.min) * b_1_range_size;
++        self.plot_mode =  None
++        self.pol_sel_mode = [False, None]
 +
-+            if(array_idx < 0 || array_idx >= max_arr_idx) {
-+                        G_warning ("Data inconsistent. Value computed for scatter plot is out of initialized range.");
-+                continue;
-+            }
++        self.data_set = False
 +
-+            /* increment scatter plot value */
-+            ++scatts->scatts_arr[i_scatt]->scatt_vals_arr[array_idx];
-+        }
-+    }
-+}
++        if iclass_mapwin: 
++            self.mapWin_conn = MapWinConnection(self, self.mapWin, self.core.CatRastUpdater())
++            self.iclass_conn = IClassConnection(self, iclass_mapwin.parent, self.cats_mgr)
++        else:
++            self.mapWin_conn = None
++            self.iclass_conn = None
 +
-+/*!
-+   \brief Computes scatter plots data from chunk_rows.
++        self.tasks_pids = {
++                            'add_scatt' : [],
++                            'set_data' : -1,
++                            'set_data_add' : -1,
++                            'set_edit_cat_data' : -1,
++                            'mapwin_conn' : [],
++                            'render_plots' : -1,
++                            'render' : []
++                           }
 +
-+   \param scatts pointer to scScatts struct of type SC_SCATT_DATA, where are computed scatter plots stored
-+   \param scatt_conds pointer to scScatts struct of type SC_SCATT_CONDITIONS, where are selected areas (condtitions)stored
++        self.Bind(EVT_CMD_DONE, self.OnThreadDone)
 +
-+   \param chunk_rows data arrays of chunk_rows from analyzed raster bands (all data in chunk_rows, null_chunk_rows and belongs_pix arrays represents same region)
-+   \param null_chunk_rows null data arrays of chunk_rows from analyzed raster bands
-+   \param row_size size of data in chunk_rows, null_chunk_rows and belongs_pix arrays
-+   \param f_cats_rasts_conds file which stores selected areas (conditions) from mapwindow see I_create_cat_rast() and I_pa
-+   \param fd_cats_rasts array of openedraster maps which represents all selected pixels for category
-+   \param region analysis region
++        self.modeSet = Signal("ScattsManager.mondeSet")
 +
-+   \return  0 on success
-+   \return -1 on failure
-+*/
-+static inline int compute_scatts_from_chunk_row(struct Cell_head *region, struct scCats * scatt_conds, 
-+                                                FILE ** f_cats_rasts_conds, struct rast_row * bands_rows, 
-+                                                struct scCats * scatts, int * fd_cats_rasts)
-+{
++    def CleanUp(self):
++        self.core.CleanUp()
 +
-+    int i_rows_pix, i_cat, i_scatt, n_a_scatts, n_pixs;
-+    int cat_id, scatt_plts_cat_idx, array_idx, max_arr_idx;
-+    char * b_1_null_row,* b_2_null_row;
-+    struct rast_row b_1_rast_row, b_2_rast_row;
-+    CELL * cat_rast_row;
++        for scatt_id, scatt in self.plots.items():
++            scatt.CleanUp()
 +
-+    struct scScatts * scatts_conds;
-+    struct scScatts * scatts_scatt_plts;
-+    struct scdScattData * conds;
++    def OnThreadDone(self, event):
++        
++        if event.exception:
++            GError(str(event.exception))
++            return
 +
-+    struct Range b_1_range, b_2_range;
-+    int b_1_range_size;
++        if event.pid in self.tasks_pids['mapwin_conn']:
++            self.tasks_pids['mapwin_conn'].remove(event.pid)
++            updated_cats = event.ret
 +
-+    int * scatts_bands;
-+    struct scdScattData ** scatts_arr;
++            for cat in updated_cats:
++                if cat not in  self.cats_to_update:
++                    self.cats_to_update.append(cat)
 +
-+    CELL * b_1_row;
-+    CELL * b_2_row;
-+    unsigned char * i_scatt_conds;
++            if not self.tasks_pids['mapwin_conn']:
++                self.tasks_pids['render_plots'] = self.thread.GetId()
++                self.thread.Run(callable = self.core.ComputeCatsScatts, 
++                                cats_ids = self.cats_to_update[:])
++                del self.cats_to_update[:]
++ 
++            return
 +
-+    int row_size = Rast_window_cols();
++        if self.tasks_pids['render_plots'] == event.pid:
++            self.RenderScattPlts()
++            return
 +
-+    unsigned short * belongs_pix = (unsigned short *) G_malloc(row_size * sizeof(unsigned short)); 
-+    unsigned char * rast_pixs = (unsigned char *) G_malloc(row_size * sizeof(unsigned char));
-+    cat_rast_row =  Rast_allocate_c_buf();
++        if event.pid in self.tasks_pids['render']:
++            self.tasks_pids['render'].remove(event.pid)
++            return
++            
++        if event.pid in self.tasks_pids['add_scatt']:
++            self.tasks_pids['add_scatt'].remove(event.pid)
++            self.AddScattPlotDone(event)
++            return
 +
-+     
-+    for(i_cat = 0; i_cat < scatt_conds->n_a_cats; i_cat++)
-+    {
-+        scatts_conds = scatt_conds->cats_arr[i_cat];
++        if self.tasks_pids['set_data'] == event.pid:
++            self.SetDataDone(event)
++            return
++        
++        if self.tasks_pids['set_data_add'] == event.pid:
++            self.SetDataDone(event)
++            self.AddScattPlot()
++            return
++        
++        if self.tasks_pids['set_edit_cat_data'] == event.pid:
++            self.SetEditCatDataDone(event)
++            return
 +
-+        cat_id = scatt_conds->cats_ids[i_cat];
++    def SetData(self, bands):
 +
-+        scatt_plts_cat_idx = scatts->cats_idxs[cat_id];
-+        if(scatt_plts_cat_idx < 0)
-+            continue;
-+        scatts_scatt_plts = scatts->cats_arr[scatt_plts_cat_idx];
++        self.CleanUp()
 +
-+        G_zero(belongs_pix, row_size * sizeof(unsigned short));
++        self.data_set = False
 +
-+        /* if category has no conditions defined, scatter plots without any constraint are computed (default scatter plots) */
-+        if(!scatts_conds->n_a_scatts && !f_cats_rasts_conds[i_cat]) {
-+            for(i_scatt = 0; i_scatt < scatts_scatt_plts->n_a_scatts; i_scatt++)
-+            {       
-+                /* all pixels belongs */
-+                for(i_rows_pix = 0; i_rows_pix < row_size; i_rows_pix++)                
-+                    belongs_pix[i_rows_pix] = 1;
-+            }
-+        }
-+        /* compute belonging pixels for defined conditions */
-+        else
-+        {
-+            scatts_bands = scatts_conds->scatts_bands;
++        if self.show_add_scatt_plot:
++            self.tasks_pids['set_data_add'] = self.thread.GetId()
++        else:
++            self.tasks_pids['set_data'] = self.thread.GetId()
 +
-+            /* check conditions from category raster condtitions file */
-+            if(f_cats_rasts_conds[i_cat]) {
-+                n_pixs = fread(rast_pixs, sizeof(unsigned char), (row_size)/sizeof(unsigned char), f_cats_rasts_conds[i_cat]);
++        self.thread.Run(callable = self.core.SetData, bands = bands)
 +
-+                if (ferror(f_cats_rasts_conds[i_cat]))
-+                {
-+                    G_free(rast_pixs);
-+                    G_free(belongs_pix);
-+                    G_warning(_("Unable to read from category raster condtition file."));
-+                    return -1;
-+                }
-+                if (n_pixs != n_pixs) {
-+                    G_free(rast_pixs);
-+                    G_free(belongs_pix);
-+                    G_warning(_("Invalid size of category raster conditions file."));
-+                    return -1;
++    def SetDataDone(self, event):
 +
-+                }
++        self.data_set = True
++        self.cats_mgr.InitCoreCats()
 +
-+                for(i_rows_pix = 0; i_rows_pix < row_size; i_rows_pix++)
-+                {
-+                    if(rast_pixs[i_rows_pix] != 0 & 255)
-+                        belongs_pix[i_rows_pix] = 1;
-+                }
-+            }
++    def OnOutput(self, event):
++        """!Print thread output according to debug level.
++        """
++        print event.text
 +
-+            /* check condtions defined in scatter plots*/
-+            for(i_scatt = 0; i_scatt < scatts_conds->n_a_scatts; i_scatt++)
-+            {   
-+                b_1_rast_row = bands_rows[scatts_bands[i_scatt * 2]];
-+                b_2_rast_row = bands_rows[scatts_bands[i_scatt * 2 + 1]];
++    def GetBands(self):
++        return self.core.GetBands()
 +
-+                b_1_row = b_1_rast_row.row;
-+                b_2_row = b_2_rast_row.row;
++    def AddScattPlot(self):
++        if not self.data_set and self.iclass_conn:
++            self.show_add_scatt_plot = True
++            self.iclass_conn.SetData()
++            self.show_add_scatt_plot = False
++            return
++        if not self.data_set:
++            GError(_('No data set.'))
++            return
 +
-+                b_1_null_row =  b_1_rast_row.null_row;
-+                b_2_null_row =  b_2_rast_row.null_row;
++        bands = self.core.GetBands()
++        dlg = AddScattPlotDialog(parent = self.guiparent, bands = bands)
++        if dlg.ShowModal() == wx.ID_OK:
 +
-+                b_1_range = b_1_rast_row.rast_range;
-+                b_2_range = b_2_rast_row.rast_range;
++            b_1, b_2 = dlg.GetBands()
++           
++            #TODO axes selection
++            transpose = False
++            if b_1 > b_2:
++                transpose = True
++                tmp_band = b_2
++                b_2 = b_1
++                b_1 = tmp_band
 +
-+                b_1_range_size = b_1_range.max - b_1_range.min + 1;
-+                max_arr_idx = (b_1_range.max -  b_1_range.min + 1) * (b_2_range.max -  b_2_range.min + 1);
++            self.scatt_id = idBandsToidScatt(b_1, b_2, len(bands))
++            self._addScattPlot(self.scatt_id, transpose)
++        
++        dlg.Destroy()
 +
-+                i_scatt_conds = scatts_conds->scatts_arr[i_scatt]->b_conds_arr;
++        return 
 +
-+                for(i_rows_pix = 0; i_rows_pix < row_size; i_rows_pix++)
-+                {
-+                    /* pixels already belongs to category from category raster conditions file or contains null value in one of the bands */
-+                    if(belongs_pix[i_rows_pix] || 
-+                       b_1_null_row[i_rows_pix] == 1 || 
-+                       b_2_null_row[i_rows_pix] == 1)
-+                        continue;
++        #for testing
++        jj = len(self.core.GetBands()) - 1
 +
-+                    array_idx = b_1_row[i_rows_pix] - b_1_range.min + (b_2_row[i_rows_pix] - b_2_range.min) * b_1_range_size;
-+                    if(array_idx < 0 || array_idx >= max_arr_idx) {
-+                        G_warning ("Data inconsistent. Value computed for scatter plot is out of initialized range.");
-+                        continue;
-+                    }
-+                    /* pixels meets condtion defined in scatter plot */
-+                    if(i_scatt_conds[array_idx])
-+                        belongs_pix[i_rows_pix] = 1;
-+                }                
-+            }
-+        }
++        max_k = 20
++        k = 0
++        for i in range(jj):
++            for j in range(i, jj):
++                print i * (len(self.core.GetBands()) - 1) + j
++                self._addScattPlot(i * (len(self.core.GetBands()) - 1) + j)
++                k += 1
++                if k == max_k:
++                    break
++            if k == max_k:
++                break
++            jj -= 1
 +
-+        /* update category raster with belonging pixels */
-+        if(fd_cats_rasts[i_cat] >= 0) {
-+            Rast_set_null_value(cat_rast_row, Rast_window_cols(), CELL_TYPE); 
 +
-+            for(i_rows_pix = 0; i_rows_pix < row_size; i_rows_pix++)
-+                if(belongs_pix[i_rows_pix])
-+                    cat_rast_row[i_rows_pix] = belongs_pix[i_rows_pix];
++    def _addScattPlot(self, scatt_id, transpose):
++        if self.plots.has_key(scatt_id):
++            GMessage(_("Scatter plot has been already added."))
++            return
 +
-+            Rast_put_c_row (fd_cats_rasts[i_cat], cat_rast_row); 
-+        }
++        self.tasks_pids['add_scatt'].append(self.thread.GetId())
++        
++        self.thread.Run(callable = self.core.AddScattPlot, scatt_id = scatt_id, userdata = {'transpose' : transpose})
 +
-+        /* update scatter plots with belonging pixels */
-+        update_cat_scatt_plts(bands_rows, belongs_pix, scatts_scatt_plts);
-+    }
 +
-+    G_free(cat_rast_row);
-+    G_free(rast_pixs);
-+    G_free(belongs_pix);
++    def RenderScattPlts(self, scatt_ids = None):
++        if len(self.tasks_pids['render']) > 1:
++            print "skip"
++            return 
 +
-+    return 0;
-+}
++        self.tasks_pids['render'].append(self.thread.GetId())
++        self.thread.Run(callable = self._renderscattplts, scatt_ids = scatt_ids)
 +
-+/*!
-+   \brief Get list if bands needed to be opened for analysis from scCats struct.
-+*/
-+static void get_needed_bands(struct scCats * cats, int * b_needed_bands)
-+{
-+    // results in b_needed_bands - array of bools - if item has value 1, band (defined by item index) is needed to be opened
-+    int i_cat, i_scatt, cat_id;
++    def _renderscattplts(self, scatt_ids):
++        cats_attrs = self.cats_mgr.GetCategoriesAttrs()
++        for i_scatt_id, scatt in self.plots.items():
++            if scatt_ids is not None and i_scatt_id not in scatt_ids:
++                continue
 +
-+    for(i_cat = 0;  i_cat < cats->n_a_cats; i_cat++)
-+    {   
-+        for(i_scatt = 0;  i_scatt < cats->cats_arr[i_cat]->n_a_scatts; i_scatt++)
-+        {   
-+            G_debug(3, "Active scatt %d in catt %d", i_scatt, i_cat);
++            scatt_dt = self.scatts_dt.GetScatt(i_scatt_id)
++            ellipses_dt = self.scatts_dt.GetEllipses(i_scatt_id)
 +
-+            b_needed_bands[cats->cats_arr[i_cat]->scatts_bands[i_scatt * 2]] = 1;
-+            b_needed_bands[cats->cats_arr[i_cat]->scatts_bands[i_scatt * 2 + 1]] = 1;
-+        }
-+    }
-+    return;
-+}
++            if self.pol_sel_mode[0]:
++                self._getSelectedAreas(i_scatt_id, scatt_dt, cats_attrs)
 +
-+/*!
-+   \brief Helper function for clean up.
-+*/
-+static void free_compute_scatts_data(int * fd_bands, struct rast_row * bands_rows, int n_a_bands, int * bands_ids, 
-+                                     int * fd_cats_rasts, FILE ** f_cats_rasts_conds, int n_a_cats)
-+{
-+    int i, band_id;
++            scatt.Plot(scatts = scatt_dt, ellipses = ellipses_dt, styles = cats_attrs)
 +
-+    for(i = 0; i < n_a_bands; i++)
-+    {   
-+        band_id = bands_ids[i];
-+        if(band_id >= 0) {
-+            Rast_close(fd_bands[i]);
-+            G_free(bands_rows[band_id].row);
-+            G_free(bands_rows[band_id].null_row);
-+        }
-+    }
-+     
-+    if(f_cats_rasts_conds)
-+        for(i = 0; i < n_a_cats; i++)
-+            if(f_cats_rasts_conds[i])
-+                fclose(f_cats_rasts_conds[i]);
++    def _getSelectedAreas(self, scatt_id, scatt_dt, cats_attrs):
 +
-+    if(fd_cats_rasts)
-+        for(i = 0; i < n_a_cats; i++)
-+            if(fd_cats_rasts[i] >= 0)
-+                Rast_close(fd_cats_rasts[i]);
++        cat_id = self.cats_mgr.GetSelectedCat()
++        if not cat_id:
++            return
 +
-+}
++        sel_a_cat_id = max(cats_attrs.keys()) + 1        
 +
-+/*!
-+   \brief Compute scatter plots data.
++        s = self.scatt_conds_dt.GetScatt(scatt_id, [cat_id])
++        if not s:
++            return
++        cats_attrs[sel_a_cat_id] = {'color' : "255:255:0",
++                                    'opacity' : 0.7,
++                                    'show' : True}
 +
-+    If category has not defined no category raster condition file and no scatter plot with consdtion,
-+    default scatter plot is computed.
++        scatt_dt[sel_a_cat_id] = s[cat_id]
 +
-+   \param region analysis region, beaware that all input data must be prepared for this region (bands (their ranges), cats_rasts_conds rasters...)
-+   \param region function calls Rast_set_window for this region
-+   \param scatt_conds pointer to scScatts struct of type SC_SCATT_CONDITIONS, where are stored selected areas (conditions) in scatter plots
-+   \param cats_rasts_conds paths to category raster conditions files representing selected areas (conditions) in rasters for every category 
-+   \param cats_rasts_conds index in array represents corresponding category id
-+   \param cats_rasts_conds for manupulation with category raster conditions file see also I_id_scatt_to_bands() and I_insert_patch_to_cat_rast()
-+   \param bands names of analyzed bands, order of bands is defined by their id
-+   \param n_bands number of bands
-+   \param [out] scatts pointer to scScatts struct of type SC_SCATT_DATA, where are computed scatter plots stored
-+   \param [out] cats_rasts array of raster maps names where will be stored all selected pixels for every category
++    def AddScattPlotDone(self, event):
++        
++        transpose = event.userdata['transpose']
++        scatt_id = event.kwds['scatt_id']
 +
-+   \return  0 on success
-+   \return -1 on failure
-+*/
-+int I_compute_scatts(struct Cell_head *region, struct scCats * scatt_conds, const char ** cats_rasts_conds,
-+                     const char ** bands, int n_bands, struct scCats * scatts, const char ** cats_rasts) 
-+{
-+    const char *mapset;
-+    char header[1024];
++        #TODO guiparent - not very good
++        self.plots[scatt_id] = self.guiparent.NewScatterPlot(scatt_id = scatt_id, transpose = transpose)
 +
-+    int fd_cats_rasts[scatt_conds->n_a_cats];
-+    FILE * f_cats_rasts_conds[scatt_conds->n_a_cats];
++        self.plots[scatt_id].plotClosed.connect(self.PlotClosed)
 +
-+    struct rast_row bands_rows[n_bands];
++        if self.plot_mode:
++            self.plots[scatt_id].SetMode(self.plot_mode)
++            self.plots[scatt_id].ZoomToExtend()
 +
-+    RASTER_MAP_TYPE data_type;
++        self.RenderScattPlts(scatt_ids = [scatt_id])
 +
-+    int nrows, i_band, n_a_bands, band_id, 
-+        i, i_row, head_nchars, i_cat, id_cat;
-+   
-+    int fd_bands[n_bands];
-+    int bands_ids[n_bands];
-+    int b_needed_bands[n_bands];  
++    def PlotClosed(self, scatt_id):
++        del self.plots[scatt_id]
 +
-+    Rast_set_window(region);
++    def SetPlotsMode(self, mode):
 +
-+    for(i_band = 0; i_band < n_bands; i_band++)
-+        fd_bands[i_band] = -1;
++        self.plot_mode = mode
++        for scatt in self.plots.itervalues():
++            scatt.SetMode(mode)
++
++        self.modeSet.emit(mode = mode)
++
++    def ActivateSelectionPolygonMode(self, activate):
++        self.pol_sel_mode[0] = activate
++        self.RenderScattPlts()
++        return activate
++
++    def ProcessSelectionPolygons(self, process_mode):        
++        scatts_polygons = {}        
++        for scatt_id, scatt in self.plots.iteritems():
++            coords = scatt.GetCoords()
++            if coords is not None:
++                scatts_polygons[scatt_id] = coords
++
++        if not scatts_polygons:
++            return
++
++        value = 1
++        if process_mode == 'remove':
++            value = 0
++
++        sel_cat_id = self.cats_mgr.GetSelectedCat()
++        if not sel_cat_id:
++            dlg = wx.MessageDialog(parent = self.guiparent,
++                      message = _("In order to select arrea in scatter plot, "
++                                  "you have to select class first.\n\n"
++                                  "There is no class yet, "
++                                  "do you want to create one?"),
++                      caption = _("No class selected"),
++                      style = wx.YES_NO)
++            if dlg.ShowModal() == wx.ID_YES:
++                self.iclass_conn.EmptyCategories()
++
++        sel_cat_id = self.cats_mgr.GetSelectedCat()
++        if not sel_cat_id:
++            return
++
++        for scatt in self.plots.itervalues():
++            scatt.SetEmpty()
++
++        self.tasks_pids['set_edit_cat_data'] = self.thread.GetId()
++        self.thread.Run(callable = self.core.UpdateCategoryWithPolygons, 
++                        cat_id = sel_cat_id,
++                        scatts_pols = scatts_polygons,
++                        value = value)
++
++    def SetPlotsEditingMode(self, mode):
++        
++        self.pol_sel_mode[1] = mode
++        for scatt in self.plots.itervalues():
++            scatt.SetEditingMode(mode)
 +    
-+    for(i_band = 0; i_band < n_bands; i_band++)
-+        bands_ids[i_band] = -1;
++    def SetEditCatDataDone(self, event):
 +
-+    if (n_bands != scatts->n_bands ||
-+        n_bands != scatt_conds->n_bands)
-+        return -1;
++        if event.exception:
++            GError(_("Error occured during computation of scatter plot category:\n%s"), 
++                      parent = self.guiparent, showTraceback = False)
 +
-+    memset(b_needed_bands, 0, (size_t)n_bands * sizeof(int));
++        cat_id = event.ret
 +
-+    get_needed_bands(scatt_conds, &b_needed_bands[0]);
-+    get_needed_bands(scatts, &b_needed_bands[0]);
++        self.RenderScattPlts()
 +
-+    n_a_bands = 0;
++        cat_id = event.kwds["cat_id"]
 +
-+    /* open band rasters, which are needed for computation */
-+    for(band_id = 0; band_id < n_bands; band_id++)
-+    {
-+        if(b_needed_bands[band_id])
-+        {
-+            G_debug(3, "Opening raster no. %d with name: %s", band_id, bands[band_id]);
++        cat_rast = self.core.GetCatRast(cat_id)
 +
-+            if ((mapset = G_find_raster2(bands[band_id],"")) == NULL) {
-+                free_compute_scatts_data(fd_bands, bands_rows, n_a_bands, 
-+                                         bands_ids, NULL, NULL, scatt_conds->n_a_cats);
-+                G_warning(_("Unbale to read find raster <%s>"), bands[band_id]);
-+                return -1;
-+            }
-+            
-+            if ((fd_bands[n_a_bands] = Rast_open_old(bands[band_id], mapset)) < 0) {
-+                free_compute_scatts_data(fd_bands, bands_rows, n_a_bands, 
-+                                         bands_ids, NULL, NULL, scatt_conds->n_a_cats);
-+                G_warning(_("Unbale to open raster <%s>"), bands[band_id]);
-+                return -1;
-+            }
++        if cat_rast not in self.added_cats_rasts.values():
 +
-+            data_type = Rast_get_map_type(fd_bands[n_a_bands]);
-+            if(data_type != CELL_TYPE) {
-+                G_warning(_("Raster <%s> type is not <%s>"), bands[band_id], "CELL");
-+                return -1;
-+            }
++            cats_attrs = self.cats_mgr.GetCategoryAttrs(cat_id)
 +
-+            bands_rows[band_id].row =  Rast_allocate_c_buf();
-+            bands_rows[band_id].null_row =  Rast_allocate_null_buf();
++    
++            region = self.core.GetRegion()
++            ret, err_msg = RunCommand('r.region',
++                                      map = cat_rast,
++                                      getErrorMsg = True,
++                                      n = "%f" % region['n'],
++                                      s = "%f" % region['s'],
++                                      e = "%f" % region['e'],
++                                      w = "%f" % region['w'],
++                                      )
 +
-+            if(Rast_read_range(bands[band_id], mapset, &bands_rows[band_id].rast_range) != 1){
-+                free_compute_scatts_data(fd_bands, bands_rows, n_a_bands, 
-+                                         bands_ids, NULL, NULL, scatt_conds->n_a_cats);
-+                G_warning(_("Unable to read range of raster <%s>"), bands[band_id]);
-+                return -1;
-+            }      
++            ret, err_msg = RunCommand('r.colors',
++                                      map = cat_rast,
++                                      rules = "-",
++                                      stdin = "1 %s" % cats_attrs["color"],
++                                      getErrorMsg = True)
 +
-+            bands_ids[n_a_bands] = band_id;
-+            ++n_a_bands;
-+        }
-+    }
++            if ret != 0:
++                GError(_("r.region failed\n%s" % err_msg))
 +
-+    /* open category rasters condition files and category rasters */
-+    for(i_cat = 0; i_cat < scatts->n_a_cats; i_cat++)
-+    {
-+        id_cat = scatts->cats_ids[i_cat];
-+        if(cats_rasts[id_cat]) {
-+            fd_cats_rasts[i_cat] = Rast_open_new(cats_rasts[id_cat], CELL_TYPE);   
-+        }
-+        else
-+            fd_cats_rasts[i_cat] = -1;
++            self.mapWin.Map.AddLayer(ltype = "raster", name =  "cat_%d" % cat_id, render = True,
++                                     command = ["d.rast", "map=%s" % cat_rast, "values=1"])                
 +
-+        if(cats_rasts_conds[id_cat]) {
-+            f_cats_rasts_conds[i_cat] = fopen(cats_rasts_conds[id_cat], "r");
-+            if(!f_cats_rasts_conds[i_cat]) {
-+                free_compute_scatts_data(fd_bands, bands_rows, n_a_bands, bands_ids, 
-+                                         f_cats_rasts_conds, f_cats_rasts_conds, scatt_conds->n_a_cats);
-+                G_warning(_("Unable to open category raster condtition file <%s>"), bands[band_id]);
-+                return -1;
-+            }
-+        }
-+        else
-+            f_cats_rasts_conds[i_cat] = NULL;
-+    }
 +
-+    head_nchars =  get_cat_rast_header(region, header);
-+    for(i_cat = 0; i_cat < scatt_conds->n_a_cats; i_cat++)
-+        if(f_cats_rasts_conds[i_cat])
-+            if( fseek(f_cats_rasts_conds[i_cat] , head_nchars, SEEK_SET) != 0) {
-+                G_warning(_("Corrupted category raster conditions file (fseek failed)"));
-+                return -1;
-+            }
++            if ret != 0:
++                GError(_("r.region failed\n%s" % err_msg))
 +
-+    nrows = Rast_window_rows();
++            self.added_cats_rasts[cat_id] = cat_rast
 +
-+    /* analyze bands by rows */
-+    for (i_row = 0; i_row < nrows; i_row++)
-+    {
-+        for(i_band = 0; i_band < n_a_bands; i_band++)
-+        {   
-+            band_id = bands_ids[i_band];
-+            Rast_get_c_row(fd_bands[i_band], bands_rows[band_id].row, i_row);
-+            Rast_get_null_value_row (fd_bands[i_band], bands_rows[band_id].null_row, i_row);
-+        }
-+        if(compute_scatts_from_chunk_row(region, scatt_conds, f_cats_rasts_conds, bands_rows, scatts, fd_cats_rasts) == -1) 
-+        {
-+            free_compute_scatts_data(fd_bands, bands_rows, n_a_bands, bands_ids, fd_cats_rasts, 
-+                                     f_cats_rasts_conds, scatt_conds->n_a_cats);
-+            return -1;
-+        }
-+ 
-+    }
-+    free_compute_scatts_data(fd_bands, bands_rows, n_a_bands, bands_ids, 
-+                             fd_cats_rasts, f_cats_rasts_conds, scatt_conds->n_a_cats); 
-+    return 0;    
-+}
-\ No newline at end of file
-Index: lib/imagery/scatt_sccats.c
-===================================================================
---- lib/imagery/scatt_sccats.c	(revision 0)
-+++ lib/imagery/scatt_sccats.c	(working copy)
-@@ -0,0 +1,405 @@
-+/*!
-+   \file lib/imagery/scatt_cat_rast.c
++        self.giface.updateMap.emit()
 +
-+   \brief Imagery library - functions for manipulation with scatter plot structs.
++    def DigitDataChanged(self, vectMap, digit):
++        
++        if self.mapWin_conn:
++            self.mapWin_conn.DigitDataChanged(vectMap, digit)
++            return 1
++        else:
++            return 0
 +
-+   Copyright (C) 2013 by the GRASS Development Team
++    def GetCategoriesManager(self):
++        return self.cats_mgr
 +
-+   This program is free software under the GNU General Public License
-+   (>=v2).  Read the file COPYING that comes with GRASS for details.
 +
-+   \author Stepan Turek <stepan.turek at seznam.cz> (Mentor: Martin Landa)
-+ */
++class CategoriesManager:
 +
-+#include <grass/raster.h>
-+#include <grass/imagery.h>
-+#include <grass/gis.h>
++    def __init__(self, scatt_mgr, core):
 +
-+#include <stdio.h>
-+#include <stdlib.h>
-+#include <math.h>
-+#include <string.h>
++        self.core = core
++        self.scatt_mgr = scatt_mgr
 +
-+/*!
-+   \brief Compute band ids from scatter plot id.
++        self.cats = {}
++        self.cats_ids = []
 +
-+    Scatter plot id describes which bands defines the scatter plot.
++        self.sel_cat_id = None
 +
-+    Let say we have 3 bands, their ids are 0, 1 and 2.
-+    Scatter plot with id 0 consists of band 1 (b_1_id) 0 and  band 2 (b_2_id) 1.
-+    All scatter plots:
-+    scatt_id b_1_id b_2_id
-+    0        0      1
-+    1        0      2
-+    2        1      2
++        self.initialized = Signal('CategoriesManager.initialized')
++        self.setCategoryAttrs = Signal('CategoriesManager.setCategoryAttrs')
++        self.deletedCategory = Signal('CategoriesManager.deletedCategory')
++        self.addedCategory = Signal('CategoriesManager.addedCategory')
 +
-+   \param scatt_id scatter plot id
-+   \param n_bands number of bands
-+   \param [out] b_1_id id of band1
-+   \param[out] b_2_id id of band2
++    def Clear(self):
 +
-+   \return 0
-+ */
-+int I_id_scatt_to_bands(const int scatt_id, const int n_bands, int * b_1_id, int * b_2_id)
-+{   
-+    int n_b1 = n_bands - 1;
++        self.cats.clear()
++        del self.cats_ids[:]
 +
-+    * b_1_id = (int) ((2 * n_b1 + 1 - sqrt((double)((2 * n_b1 + 1) * (2 * n_b1 + 1) - 8 * scatt_id))) / 2);
++        self.sel_cat_id = None  
 +
-+    * b_2_id = scatt_id - ((* b_1_id) * (2 * n_b1 + 1) - (* b_1_id) * (* b_1_id)) / 2 + (* b_1_id) + 1;
++    def InitCoreCats(self):
++        if self.scatt_mgr.data_set:
++            for cat_id in self.cats_ids:
++                self.core.AddCategory(cat_id)
 +
-+    return 0;
-+}
++    def AddCategory(self, cat_id = None, name = None, color = None):
 +
++        if cat_id is None:
++            if self.cats_ids:
++                cat_id = max(self.cats_ids) + 1
++            else:
++                cat_id = 1
 +
-+/*!
-+   \brief Compute scatter plot id from band ids.
++        if self.scatt_mgr.data_set:
++            self.scatt_mgr.thread.Run(callable = self.core.AddCategory, 
++                                      cat_id = cat_id)
++            #TODO check number of cats
++            #if ret < 0: #TODO
++            #    return -1;
 +
-+    See also I_id_scatt_to_bands().
++        self.cats[cat_id] = {
++                                'name' : _('Category %s' % cat_id ),
++                                'color' : "0:0:0",
++                                'opacity' : 1.0,
++                                'show' : True
++                            }
 +
-+   \param n_bands number of bands
-+   \param b_1_id id of band1
-+   \param b_1_id id of band2
-+   \param [out] scatt_id scatter plot id
++        self.cats_ids.append(cat_id)
 +
-+   \return 0
-+ */
-+int I_bands_to_id_scatt(const int b_1_id, const int b_2_id, const int n_bands, int * scatt_id)
-+{   
-+    int n_b1 = n_bands - 1;
++        if name is not None:
++            self.cats[cat_id]["name"] = name
++   
++        if color is not None:
++            self.cats[cat_id]["color"] = color
 +
-+    * scatt_id = (b_1_id * (2 * n_b1 + 1) - b_1_id * b_1_id) / 2 + b_2_id - b_1_id - 1;
++        self.addedCategory.emit(cat_id = cat_id,
++                                name = self.cats[cat_id]["name"], 
++                                color = self.cats[cat_id]["color"] )
++        return cat_id
 +
-+    return 0;
-+}
++    def SetCategoryAttrs(self, cat_id, attrs_dict):
++        render = False
++        for k, v in attrs_dict.iteritems():
++            if not render and k in ['name', 'color', 'opacity', 'show']:
++                render = True
 +
-+/*!
-+   \brief Initialize structure for storing scatter plots data.
++            self.cats[cat_id][k] = v
 +
-+   \param cats pointer to scCats struct 
-+   \param n_bands number of bands
-+   \param type SC_SCATT_DATA - stores scatter plots 
-+   \param type SC_SCATT_CONDITIONS - stores selected areas in scatter plots
-+ */
-+void I_sc_init_cats(struct scCats * cats, int n_bands, int type)
-+{
-+    int i_cat;
++        #TODO optimization 
++        if render:
++            self.scatt_mgr.RenderScattPlts()
 +
-+    cats->type = type;
++        self.setCategoryAttrs.emit(cat_id = cat_id, attrs_dict = attrs_dict)
 +
-+    cats->n_cats = 100;
-+    cats->n_a_cats = 0;
++    def DeleteCategory(self, cat_id):
 +
-+    cats->n_bands = n_bands;
-+    cats->n_scatts = (n_bands - 1) * n_bands / 2;
++        if self.scatt_mgr.data_set:
++            self.scatt_mgr.thread.Run(callable = self.core.DeleteCategory, 
++                                      cat_id = cat_id)
++        del self.cats[cat_id]
++        self.cats_ids.remove(cat_id)
 +
-+    cats->cats_arr = (struct scScatts **) G_malloc(cats->n_cats * sizeof(struct scScatts *));
-+    memset(cats->cats_arr, 0, cats-> n_cats * sizeof(struct scScatts *));
++        self.deletedCategory.emit(cat_id = cat_id)
 +
-+    cats->cats_ids = (int *)  G_malloc(cats->n_cats * sizeof(int));
-+    cats->cats_idxs =(int *)  G_malloc(cats->n_cats * sizeof(int));
++    #TODO emit event?
++    def SetSelectedCat(self, cat_id):
++        self.sel_cat_id = cat_id
++        if self.scatt_mgr.pol_sel_mode[0]:
++            self.scatt_mgr.RenderScattPlts()
 +
-+    for(i_cat = 0; i_cat < cats->n_cats; i_cat++)
-+        cats->cats_idxs[i_cat] = -1;
++    def GetSelectedCat(self):
++        return self.sel_cat_id
 +
-+    return;
-+}
++    def GetCategoryAttrs(self, cat_id):
++        #TODO is mutable
++        return self.cats[cat_id]
 +
-+/*!
-+   \brief Free data of struct scCats, the structure itself remains alocated.
++    def GetCategoriesAttrs(self):
++        #TODO is mutable
++        return self.cats
++     
++    def GetCategories(self):
++        return self.cats_ids[:]
 +
-+   \param cats pointer to existing scCats struct
-+ */
-+void I_sc_free_cats(struct scCats * cats)
-+{
-+    int i_cat;
++    def SetCategoryPosition(self):
++        if newindex > oldindex:
++            newindex -= 1
++        
++        self.cats_ids.insert(newindex, self.cats_ids.pop(oldindex))
 +
-+    for(i_cat = 0; i_cat < cats->n_a_cats; i_cat++)
-+    {        
-+        if(cats->cats_arr[i_cat])
-+        {   
-+            G_free(cats->cats_arr[i_cat]->scatt_idxs);
-+            G_free(cats->cats_arr[i_cat]->scatts_bands);
-+            G_free(cats->cats_arr[i_cat]->scatts_arr);
-+            G_free(cats->cats_arr[i_cat]);
-+        }
-+    }
++class MapWinConnection:
++    def __init__(self, scatt_mgr, mapWin, scatt_rast_updater):
++        self.mapWin = mapWin
++        self.vectMap = None
++        self.scatt_rast_updater = scatt_rast_updater
++        self.scatt_mgr = scatt_mgr
++        self.cats_mgr = scatt_mgr.cats_mgr
 +
-+    G_free(cats->cats_ids);
-+    G_free(cats->cats_idxs);
-+    G_free(cats->cats_arr);
++        self.thread = self.scatt_mgr.thread
 +
-+    cats->n_cats = 0;
-+    cats->n_a_cats = 0;
-+    cats->n_bands = 0;
-+    cats->n_scatts = 0;
-+    cats->type = -1;
++        #TODO
++        self.mapWin.parent.toolbars["vdigit"].editingStarted.connect(self.DigitDataChanged)
 +
-+    return;
-+}
++        #def ChangeMap(self, vectMap, layers_cats):
++        #     self.vectMap = vectMap
++        #     self.layers_cats = layers_cats
 +
-+#if 0
-+void I_sc_get_active_categories(int * a_cats_ids, int * n_a_cats, struct scCats * cats)
-+{
-+    a_cats_ids = cats->cats_ids;
-+    * n_a_cats = cats->n_a_cats;
-+}
-+#endif
++        #ret, region, msg = RunCommand("v.to.rast",
++        #                              flags = "gp",
++        #                              getErrorMsg = True,
++        #                              read = True)
 +
-+/*!
-+   \brief Add category.
-+    
-+    Category represents group of scatter plots.
++    def _connectSignals(self):
++        self.digit.featureAdded.connect(self.AddFeature)
++        self.digit.areasDeleted.connect(self.DeleteAreas)
++        self.digit.featuresDeleted.connect(self.DeleteAreas)
++        self.digit.vertexMoved.connect(self.EditedFeature)
++        self.digit.vertexRemoved.connect(self.EditedFeature)
++        self.digit.lineEdited.connect(self.EditedFeature)
++        self.digit.featuresMoved.connect(self.EditedFeature)
 +
-+   \param cats pointer to scCats struct
++    def AddFeature(self, new_bboxs, new_areas_cats):
++        if not self.scatt_mgr.data_set:
++            return
 +
-+   \return assigned category id (starts with 0)
-+   \return -1 if maximum nuber of categories was reached
-+ */
-+int I_sc_add_cat(struct scCats * cats)
-+{
-+    int i_scatt, i_cat_id, cat_id;
-+    int n_a_cats = cats->n_a_cats;
++        self.scatt_mgr.tasks_pids['mapwin_conn'].append(self.thread.GetId())
++        self.thread.Run(callable = self.scatt_rast_updater.EditedFeature, 
++                        new_bboxs = new_bboxs, 
++                        old_bboxs = [], 
++                        old_areas_cats = [],
++                        new_areas_cats = new_areas_cats)
 +
-+    if(cats->n_a_cats >= cats->n_cats)
-+        return -1;
++    def DeleteAreas(self, old_bboxs, old_areas_cats):
++        if not self.scatt_mgr.data_set:
++            return
 +
-+    for(i_cat_id = 0; i_cat_id < cats->n_cats; i_cat_id++)
-+        if(cats->cats_idxs[i_cat_id] < 0) {
-+            cat_id = i_cat_id;
-+            break;
-+        }
++        self.scatt_mgr.tasks_pids['mapwin_conn'].append(self.thread.GetId())
++        self.thread.Run(callable = self.scatt_rast_updater.EditedFeature, 
++                        new_bboxs = [], 
++                        old_bboxs = old_bboxs, 
++                        old_areas_cats = old_areas_cats,
++                        new_areas_cats = [])
 +
-+    cats->cats_ids[n_a_cats] = cat_id;
-+    cats->cats_idxs[cat_id] = n_a_cats;
-+    
-+    cats->cats_arr[n_a_cats] = (struct scScatts *) G_malloc(sizeof(struct scScatts));
 +
-+    cats->cats_arr[n_a_cats]->scatts_arr = (struct scdScattData **) G_malloc(cats->n_scatts * sizeof(struct scdScattData *));
-+    memset((cats->cats_arr[n_a_cats]->scatts_arr), 0, cats->n_scatts * sizeof(struct scdScattData *));
-+    
-+    cats->cats_arr[n_a_cats]->n_a_scatts = 0;
++    def EditedFeature(self, new_bboxs, new_areas_cats, old_bboxs, old_areas_cats):
++        if not self.scatt_mgr.data_set:
++            return
 +
-+    cats->cats_arr[n_a_cats]->scatts_bands = (int *) G_malloc(cats->n_scatts * 2 * sizeof(int));
++        self.scatt_mgr.tasks_pids['mapwin_conn'].append(self.thread.GetId())
++        self.thread.Run(callable = self.scatt_rast_updater.EditedFeature, 
++                        new_bboxs = new_bboxs, 
++                        old_bboxs = old_bboxs, 
++                        old_areas_cats = old_areas_cats,
++                        new_areas_cats = new_areas_cats)
++
++    def DigitDataChanged(self, vectMap, digit):
++
++        self.digit = digit
++        self.vectMap = vectMap
++
++        self.digit.EmitSignals(emit = True)
++
++        self.scatt_rast_updater.SetVectMap(vectMap)
++
++        self._connectSignals()
++
++
++class IClassConnection:
++    def __init__(self, scatt_mgr, iclass_frame, cats_mgr):
++        self.iclass_frame = iclass_frame
++        self.stats_data   = self.iclass_frame.stats_data
++        self.cats_mgr     = cats_mgr
++        self.scatt_mgr    = scatt_mgr
++
++        self.stats_data.statisticsAdded.connect(self.AddCategory)
++        self.stats_data.statisticsDeleted.connect(self.DeleteCategory)
++        self.stats_data.allStatisticsDeleted.connect(self.DeletAllCategories)
++        self.stats_data.statisticsSet.connect(self.SetCategory)
++
++        self.iclass_frame.groupSet.connect(self.GroupSet)
++
++        self.cats_mgr.setCategoryAttrs.connect(self.SetStatistics)
++        self.cats_mgr.deletedCategory.connect(self.DeleteStatistics)
++        self.cats_mgr.addedCategory.connect(self.AddStatistics)
++
++        self.iclass_frame.categoryChanged.connect(self.CategoryChanged)
++
++        self.SyncCats()
++
++    def SetData(self):
++        self.iclass_frame.AddBands()
++
++    def EmptyCategories(self):
++        self.iclass_frame.OnCategoryManager(None)
++
++    def SyncCats(self):
++        self.cats_mgr.addedCategory.disconnect(self.AddStatistics)
++        cats = self.stats_data.GetCategories()
++        for c in cats:
++            stats = self.stats_data.GetStatistics(c)
++            self.cats_mgr.AddCategory(c, stats.name, stats.color)
++        self.cats_mgr.addedCategory.connect(self.AddStatistics)
++
++    def CategoryChanged(self, cat):
++        self.cats_mgr.SetSelectedCat(cat) 
++
++    def AddCategory(self, cat, name, color):
++        self.cats_mgr.addedCategory.disconnect(self.AddStatistics)
++        self.cats_mgr.AddCategory(cat_id = cat, name = name, color = color)
++        self.cats_mgr.addedCategory.connect(self.AddStatistics)
++
++    def DeleteCategory(self, cat):
++        self.cats_mgr.deletedCategory.disconnect(self.DeleteStatistics)
++        self.cats_mgr.DeleteCategory(cat)
++        self.cats_mgr.deletedCategory.connect(self.DeleteStatistics)
++
++    def DeletAllCategories(self):
++
++        self.cats_mgr.deletedCategory.disconnect(self.DeleteStatistics)
++        cats = self.stats_data.GetCategories()
++        for c in cats:
++            self.cats_mgr.DeleteCategory(c)
++        self.cats_mgr.deletedCategory.connect(self.DeleteStatistics)
++
++    def SetCategory(self, cat, stats):
++
++        self.cats_mgr.setCategoryAttrs.disconnect(self.SetStatistics)
++        cats_attr = {}
++        for attr in ['name', 'color']:
++            if stats.has_key(attr):
++                cats_attr[attr] = stats[attr]
++
++        if cats_attr:
++            self.cats_mgr.SetCategoryAttrs(cat, cats_attr)
++        self.cats_mgr.setCategoryAttrs.connect(self.SetStatistics)
++
++
++    def SetStatistics(self, cat_id, attrs_dict):
++        self.stats_data.statisticsSet.disconnect(self.SetCategory)
++        self.stats_data.GetStatistics(cat_id).SetStatistics(attrs_dict)
++        self.stats_data.statisticsSet.connect(self.SetCategory)
++
++    def AddStatistics(self, cat_id, name, color):
++        self.stats_data.statisticsAdded.disconnect(self.AddCategory)
++        self.stats_data.AddStatistics(cat_id, name, color)
++        self.stats_data.statisticsAdded.connect(self.AddCategory)
++
++    def DeleteStatistics(self, cat_id):
++        self.stats_data.statisticsDeleted.disconnect(self.DeleteCategory)
++        self.stats_data.DeleteStatistics(cat_id)
++        self.stats_data.statisticsDeleted.connect(self.DeleteCategory)
++
++    def GroupSet(self, group):
++        res = RunCommand('i.group',
++                         flags = 'g',
++                         group = group, subgroup = group,
++                         read = True).strip()
++        if res.split('\n')[0]:
++            bands = res.split('\n')
++            self.scatt_mgr.SetData(bands)
+\ No newline at end of file
+Index: gui/wxpython/Makefile
+===================================================================
+--- gui/wxpython/Makefile	(revision 57599)
++++ gui/wxpython/Makefile	(working copy)
+@@ -13,7 +13,7 @@
+ 	$(wildcard animation/* core/*.py dbmgr/* gcp/*.py gmodeler/* \
+ 	gui_core/*.py iclass/* lmgr/*.py location_wizard/*.py mapwin/*.py mapdisp/*.py \
+ 	mapswipe/* modules/*.py nviz/*.py psmap/* rlisetup/* timeline/* vdigit/* \
+-	vnet/*.py web_services/*.py wxplot/*.py) \
++	vnet/*.py web_services/*.py wxplot/*.py scatt_plot/*.py) \
+ 	gis_set.py gis_set_error.py wxgui.py README
+ 
+ DSTFILES := $(patsubst %,$(ETCDIR)/%,$(SRCFILES)) \
+@@ -21,8 +21,9 @@
+ 
+ PYDSTDIRS := $(patsubst %,$(ETCDIR)/%,animation core dbmgr gcp gmodeler \
+ 	gui_core iclass lmgr location_wizard mapwin mapdisp modules nviz psmap \
+-	mapswipe vdigit wxplot web_services rlisetup vnet timeline)
++	mapswipe vdigit wxplot web_services rlisetup vnet timeline scatt_plot)
+ 
++
+ DSTDIRS := $(patsubst %,$(ETCDIR)/%,icons scripts xml)
+ 
+ default: $(DSTFILES)
+Index: gui/wxpython/vdigit/toolbars.py
+===================================================================
+--- gui/wxpython/vdigit/toolbars.py	(revision 57599)
++++ gui/wxpython/vdigit/toolbars.py	(working copy)
+@@ -17,6 +17,7 @@
+ import wx
+ 
+ from grass.script import core as grass
++from grass.pydispatch.signal import Signal
+ 
+ from gui_core.toolbars  import BaseToolbar, BaseIcons
+ from gui_core.dialogs   import CreateNewVector
+@@ -42,6 +43,8 @@
+         self.digit         = None
+         self._giface       = giface
+         
++        self.editingStarted = Signal("VDigitToolbar.editingStarted")
++
+         # currently selected map layer for editing (reference to MapLayer instance)
+         self.mapLayer = None
+         # list of vector layers from Layer Manager (only in the current mapset)
+@@ -860,6 +863,7 @@
+             alpha = int(opacity * 255)
+             self.digit.GetDisplay().UpdateSettings(alpha = alpha)
+         
++        self.editingStarted.emit(vectMap = mapLayer.GetName(), digit = self.digit)
+         return True
+ 
+     def StopEditing(self):
+Index: gui/wxpython/vdigit/wxdigit.py
+===================================================================
+--- gui/wxpython/vdigit/wxdigit.py	(revision 57599)
++++ gui/wxpython/vdigit/wxdigit.py	(working copy)
+@@ -17,7 +17,7 @@
+ (and NumPy would be an excellent candidate for acceleration via
+ e.g. OpenCL or CUDA; I'm surprised it hasn't happened already).
+ 
+-(C) 2007-2011 by the GRASS Development Team
++(C) 2007-2011, 2013 by the GRASS Development Team
+ 
+ This program is free software under the GNU General Public License
+ (>=v2). Read the file COPYING that comes with GRASS for details.
+@@ -27,6 +27,8 @@
+ 
+ import grass.script.core as grass
+ 
++from grass.pydispatch.signal import Signal
++
+ from core.gcmd        import GError
+ from core.debug       import Debug
+ from core.settings    import UserSettings
+@@ -176,7 +178,21 @@
+         
+         if self.poMapInfo:
+             self.InitCats()
+-        
++
++        self.emit_signals = False
++
++        # signals which describes features changes during digitization, 
++        # activate them using EmitSignals method 
++        #TODO signal for errors?
++        self.featureAdded = Signal('IVDigit.featureAdded')
++        self.areasDeleted = Signal('IVDigit.areasDeleted')
++        self.vertexMoved = Signal('IVDigit.vertexMoved')
++        self.vertexAdded = Signal('IVDigit.vertexAdded')
++        self.vertexRemoved = Signal('IVDigit.vertexRemoved')
++        self.featuresDeleted = Signal('IVDigit.featuresDeleted')
++        self.featuresMoved = Signal('IVDigit.featuresMoved')
++        self.lineEdited = Signal('IVDigit.lineEdited')
++
+     def __del__(self):
+         Debug.msg(1, "IVDigit.__del__()")
+         Vect_destroy_line_struct(self.poPoints)
+@@ -188,7 +204,12 @@
+             Vect_close(self.poBgMapInfo)
+             self.poBgMapInfo = self.popoBgMapInfo = None
+             del self.bgMapInfo
+-        
 +     
-+    cats->cats_arr[n_a_cats]->scatt_idxs = (int *) G_malloc(cats->n_scatts * sizeof(int));
-+    for(i_scatt = 0; i_scatt < cats->n_scatts; i_scatt++)
-+        cats->cats_arr[n_a_cats]->scatt_idxs[i_scatt] = -1;
-+    
-+    ++cats->n_a_cats;
++    def EmitSignals(self, emit):
++        """!Activate/deactivate signals which describes features changes during digitization.
++        """
++        self.emit_signals = emit
 +
-+    return cat_id;
-+}
+     def CloseBackgroundMap(self):
+         """!Close background vector map"""
+         if not self.poBgMapInfo:
+@@ -394,7 +415,6 @@
+         
+         @return tuple (number of added features, feature ids)
+         """
+-        
+         layer = self._getNewFeaturesLayer()
+         cat = self._getNewFeaturesCat()
+         
+@@ -419,10 +439,14 @@
+             return (-1, None)
+         
+         self.toolbar.EnableUndo()
+-        
+-        return self._addFeature(vtype, points, layer, cat,
+-                                self._getSnapMode(), self._display.GetThreshold())
+-    
 +
-+#if 0
-+int I_sc_delete_cat(struct scCats * cats, int cat_id)
-+{
-+    int cat_idx, i_cat;
++        ret = self._addFeature(vtype, points, layer, cat,
++                               self._getSnapMode(), self._display.GetThreshold())
++        if ret[0] > -1 and self.emit_signals:
++            self.featureAdded.emit(new_bboxs = [self._createBbox(points)], new_areas_cats = [[{layer : [cat]}, None]])
 +
-+    if(cat_id < 0 || cat_id >= cats->n_cats)
-+        return -1;
++        return ret
 +
-+    cat_idx = cats->cats_idxs[cat_id];
-+    if(cat_idx < 0)
-+        return -1;
+     def DeleteSelectedLines(self):
+         """!Delete selected features
+ 
+@@ -434,16 +458,27 @@
+         # collect categories for deleting if requested
+         deleteRec = UserSettings.Get(group = 'vdigit', key = 'delRecord', subkey = 'enabled')
+         catDict = dict()
 +
-+    G_free(cats->cats_arr[cat_idx]->scatt_idxs);
-+    G_free(cats->cats_arr[cat_idx]->scatts_bands);
-+    G_free(cats->cats_arr[cat_idx]->scatts_arr);
-+    G_free(cats->cats_arr[cat_idx]);
++        old_bboxs = []
++        old_areas_cats = []
+         if deleteRec:
+             for i in self._display.selected['ids']:
++                
+                 if Vect_read_line(self.poMapInfo, None, self.poCats, i) < 0:
+                     self._error.ReadLine(i)
+                 
+-                cats = self.poCats.contents
+-                for j in range(cats.n_cats):
+-                    if cats.field[j] not in catDict.keys():
+-                        catDict[cats.field[j]] = list()
+-                    catDict[cats.field[j]].append(cats.cat[j])
++                if self.emit_signals:
++                    ret = self._getLineAreaBboxCats(i)
++                    if ret:
++                        old_bboxs += ret[0]
++                        old_areas_cats += ret[1]
++                
++                # catDict was not used -> put into comment
++                #cats = self.poCats.contents
++                #for j in range(cats.n_cats):
++                #    if cats.field[j] not in catDict.keys():
++                #        catDict[cats.field[j]] = list()
++                #    catDict[cats.field[j]].append(cats.cat[j])
+         
+         poList = self._display.GetSelectedIList()
+         nlines = Vedit_delete_lines(self.poMapInfo, poList)
+@@ -456,7 +491,10 @@
+                 self._deleteRecords(catDict)
+             self._addChangeset()
+             self.toolbar.EnableUndo()
+-        
 +
-+    for(i_cat = cat_idx; i_cat < cats->n_a_cats - 1; i_cat++)
-+    {
-+        cats->cats_arr[i_cat] = cats->cats_arr[i_cat + 1];
-+        cats->cats_ids[i_cat] = cats->cats_ids[i_cat + 1];
-+    }
-+    cats->cats_idxs[cat_id] = -1; 
++            if self.emit_signals:
++                self.featuresDeleted.emit(old_bboxs = old_bboxs, old_areas_cats = old_areas_cats)
 +
-+    --cats->n_a_cats;
-+    
-+    return 0;
-+}
-+#endif
+         return nlines
+             
+     def _deleteRecords(self, cats):
+@@ -512,22 +550,173 @@
+ 
+         @return number of deleted 
+         """
++        if len(self._display.selected['ids']) < 1:
++            return 0
++        
+         poList = self._display.GetSelectedIList()
+         cList  = poList.contents
+         
+         nareas = 0
++        old_bboxs = []
++        old_areas_cats = []
 +
-+/*!
-+   \brief Insert scatter plot data .
-+    Inserted scatt_data struct must have same type as cats struct (SC_SCATT_DATA or SC_SCATT_CONDITIONS).
+         for i in range(cList.n_values):
 +
-+   \param cats pointer to scCats struct
-+   \param cat_id id number of category.
-+   \param scatt_id id number of scatter plot.
+             if Vect_get_line_type(self.poMapInfo, cList.value[i]) != GV_CENTROID:
+                 continue
+-            
 +
-+   \return  0 on success
-+   \return -1 on failure
-+ */
-+int I_sc_insert_scatt_data(struct scCats * cats, struct scdScattData * scatt_data, int cat_id, int scatt_id)
-+{
-+    int band_1, band_2, cat_idx, n_a_scatts;
-+    struct scScatts * scatts;
++            if self.emit_signals:
++                area = Vect_get_centroid_area(self.poMapInfo, cList.value[i]);
++                if area > 0: 
++                    bbox, cats = self._getaAreaBboxCats(area)
++                    old_bboxs += bbox
++                    old_areas_cats += cats
 +
-+    if(cat_id < 0 || cat_id >= cats->n_cats)
-+        return -1;
+             nareas += Vedit_delete_area_centroid(self.poMapInfo, cList.value[i])
+         
+         if nareas > 0:
+             self._addChangeset()
+             self.toolbar.EnableUndo()
++            if self.emit_signals:
++                self.areasDeleted.emit(old_bboxs = old_bboxs, old_areas_cats = old_areas_cats)        
 +
-+    cat_idx = cats->cats_idxs[cat_id];
-+    if(cat_idx < 0)
-+        return -1;
++        return nareas
++   
++    def _getLineAreaBboxCats(self, ln_id):
++        ltype = Vect_read_line(self.poMapInfo, None, None, ln_id)
 +
-+    if(scatt_id < 0 && scatt_id >= cats->n_scatts)
-+        return -1;
++        if ltype == GV_CENTROID:
++            #TODO centroid opttimization, can be adited also its area -> it will appear two times in new_ lists
++            return self._getCentroidAreaBboxCats(ln_id)
++        else: 
++            return [self._getBbox(ln_id)], [self._getLineAreasCategories(ln_id)]
 +
-+    scatts = cats->cats_arr[cat_idx];
-+    if(scatts->scatt_idxs[scatt_id] >= 0)
-+        return -1;
 +
-+    if(!scatt_data->b_conds_arr && cats->type == SC_SCATT_CONDITIONS)
-+        return -1;
++    def _getCentroidAreaBboxCats(self, centroid):
++        if not Vect_line_alive(self.poMapInfo, centroid):
++            return None
 +
-+    if(!scatt_data->scatt_vals_arr && cats->type == SC_SCATT_DATA)
-+        return -1;
++        area = Vect_get_centroid_area(self.poMapInfo, centroid)  
++        if area > 0:
++            return self._getaAreaBboxCats(area)
++        else:
++            return None
 +
-+    n_a_scatts = scatts->n_a_scatts;
++    def _getaAreaBboxCats(self, area):
 +
-+    scatts->scatt_idxs[scatt_id] = n_a_scatts;
++        po_b_list = Vect_new_list()
++        Vect_get_area_boundaries(self.poMapInfo, area, po_b_list);
++        b_list = po_b_list.contents
 +
-+    I_id_scatt_to_bands(scatt_id, cats->n_bands, &band_1, &band_2);
++        geoms = []
++        areas_cats = []
 +
-+    scatts->scatts_bands[n_a_scatts * 2] = band_1;
-+    scatts->scatts_bands[n_a_scatts * 2 + 1] = band_2;
++        if b_list.n_values > 0:
++            for i_line in range(b_list.n_values):
 +
-+    scatts->scatts_arr[n_a_scatts] = scatt_data;
-+    ++scatts->n_a_scatts;
++                line = b_list.value[i_line];
 +
-+    return 0;
-+}
++                geoms.append(self._getBbox(abs(line)))
++                areas_cats.append(self._getLineAreasCategories(abs(line)))
+         
+-        return nareas
++        Vect_destroy_list(po_b_list);
 +
-+#if 0
-+int I_sc_remove_scatt_data(struct scCats * cats, struct scdScattData * scatt_data, int cat_id, int scatt_id)
-+{
-+    int cat_idx, scatt_idx, n_init_scatts, i_scatt;
-+    struct scScatts * scatts;
++        return geoms, areas_cats
 +
-+    if(cat_id < 0 && cat_id >= cats->n_cats)
-+        return -1;
++    def _getLineAreasCategories(self, ln_id):
++        if not Vect_line_alive (self.poMapInfo, ln_id):
++            return []
 +
-+    cat_idx = cats->cats_idxs[cat_id];
-+    if(cat_idx < 0)
-+        return -1;
++        ltype = Vect_read_line(self.poMapInfo, None, None, ln_id)
++        if ltype != GV_BOUNDARY:
++            return []
 +
-+    if(scatt_id < 0 || scatt_id >= cats->n_scatts)
-+        return -1;
++        cats = [None, None]
 +
-+    scatts = cats->cats_arr[cat_idx];
-+    if(scatts->scatt_idxs[scatt_id] < 0)
-+        return -1;
++        left = c_int()
++        right = c_int()
 +
-+    scatt_data = scatts->scatts_arr[scatt_idx];
++        if Vect_get_line_areas(self.poMapInfo, ln_id, pointer(left), pointer(right)) == 1:
++            areas = [left.value, right.value]
 +
-+    for(i_scatt = scatt_idx; i_scatt < scatts->n_a_scatts - 1; i_scatt++)
-+    {
-+        scatts->scatts_arr[i_scatt] = scatts->scatts_arr[i_scatt + 1];
-+        scatts->scatts_bands[i_scatt * 2] = scatts->scatts_bands[(i_scatt + 1)* 2];
-+        scatts->scatts_bands[i_scatt * 2 + 1] = scatts->scatts_bands[(i_scatt + 1) * 2 + 1];
-+    }
-+    scatts->scatts_arr[scatts->n_a_scatts] = NULL;
++            for i, a in enumerate(areas):
++                if a > 0: 
++                    centroid = Vect_get_area_centroid(self.poMapInfo, a)
++                    if centroid <= 0:
++                        continue
++                    c = self._getCategories(centroid)
++                    if c:
++                        cats[i] = c
 +
-+    scatts->scatt_idxs[scatt_id] = -1;
++        return cats
 +
-+    scatt_data = scatts->scatts_arr[scatt_id];
-+    scatts->n_a_scatts--;
++    def _getCategories(self, ln_id):
++        if not Vect_line_alive (self.poMapInfo, ln_id):
++            return none
 +
-+    return 0;
-+}
++        poCats = Vect_new_cats_struct()
++        if Vect_read_line(self.poMapInfo, None, poCats, ln_id) < 0:
++            Vect_destroy_cats_struct(poCats)
++            return None
 +
-+int I_sc_set_value(struct scCats * cats, int cat_id, int scatt_id, int value_idx, int value)
-+{
-+    int n_a_scatts = cats->cats_arr[cat_id]->n_a_scatts;
-+    int cat_idx, scatt_idx, ret;
++        cCats = poCats.contents
 +
-+    cat_idx = cats->cats_idxs[cat_id];
-+    if(cat_idx < 0)
-+        return -1;
-+    
-+    if(cats->cats_arr[cat_idx]->scatt_idxs[scatt_id] < 0)
-+        return -1;
++        cats = {}
++        for j in range(cCats.n_cats):
++            if cats.has_key(cCats.field[j]):
++                cats[cCats.field[j]].append(cCats.cat[j])
++            else:
++                cats[cCats.field[j]] = [cCats.cat[j]]
+     
++        Vect_destroy_cats_struct(poCats)
++        return cats
 +
-+    cat_idx = cats->cats_idxs[cat_id];
-+    scatt_idx = cats->cats_arr[cat_idx]->scatt_idxs[scatt_id];
++    def _getBbox(self, ln_id):
++        if not Vect_line_alive (self.poMapInfo, ln_id):
++            return None
 +
-+    I_scd_set_value(cats->cats_arr[cat_idx]->scatts_arr[scatt_idx], value_idx, value);
++        poPoints = Vect_new_line_struct()
++        if Vect_read_line(self.poMapInfo, poPoints, None, ln_id) < 0:
++            Vect_destroy_line_struct(poPoints)
++            return []
 +
-+    return 0;
-+}
-+#endif
++        geom = self._convertGeom(poPoints)
++        bbox = self._createBbox(geom)
++        Vect_destroy_line_struct(poPoints)
++        return bbox
 +
-+/*!
-+   \brief Insert scatter plot data.
++    def _createBbox(self, points):
++
++        bbox = {}
++        for pt in points:
++            if not bbox.has_key('maxy'):
++                bbox['maxy'] = pt[1]
++                bbox['miny'] = pt[1]
++                bbox['maxx'] = pt[0]
++                bbox['minx'] = pt[0]
++                continue
++                
++            if   bbox['maxy'] < pt[1]:
++                bbox['maxy'] = pt[1]
++            elif bbox['miny'] > pt[1]:
++                bbox['miny'] = pt[1]
++                
++            if   bbox['maxx'] < pt[0]:
++                bbox['maxx'] = pt[0]
++            elif bbox['minx'] > pt[0]:
++                bbox['minx'] = pt[0]
++        return bbox
++
++    def _convertGeom(self, poPoints):
++
++        Points = poPoints.contents
++
++        pts_geom = []
++        for j in range(Points.n_points):
++            pts_geom.append((Points.x[j], Points.y[j]))
++
++        return pts_geom
++
+     def MoveSelectedLines(self, move):
+         """!Move selected features
+ 
+@@ -536,16 +725,45 @@
+         if not self._checkMap():
+             return -1
+         
++        nsel = len(self._display.selected['ids'])
++        if nsel < 1:
++            return -1   
++        
+         thresh = self._display.GetThreshold()
+         snap   = self._getSnapMode()
+         
+         poList = self._display.GetSelectedIList()
++
++        if self.emit_signals:
++            old_bboxs = []
++            old_areas_cats = []
++            for sel_id in self._display.selected['ids']:
++                ret = self._getLineAreaBboxCats(sel_id)
++                if ret:
++                    old_bboxs += ret[0]
++                    old_areas_cats += ret[1]
++        
++            Vect_set_updated(self.poMapInfo, 1)
++            n_up_lines_old = Vect_get_num_updated_lines(self.poMapInfo)
++        
+         nlines = Vedit_move_lines(self.poMapInfo, self.popoBgMapInfo, int(self.poBgMapInfo is not None),
+                                   poList,
+                                   move[0], move[1], 0,
+                                   snap, thresh)
++
+         Vect_destroy_list(poList)
+-        
++
++        if nlines > 0 and self.emit_signals:
++            new_bboxs = []
++            new_areas_cats = []
++            n_up_lines = Vect_get_num_updated_lines(self.poMapInfo)
++            for i in range(n_up_lines_old, n_up_lines):
++                new_id = Vect_get_updated_line(self.poMapInfo, i)
++                ret = self._getLineAreaBboxCats(new_id)
++                if ret:
++                    new_bboxs += ret[0]
++                    new_areas_cats += ret[1]
++
+         if nlines > 0 and self._settings['breakLines']:
+             for i in range(1, nlines):
+                 self._breakLineAtIntersection(nlines + i, None, changeset)
+@@ -553,7 +771,13 @@
+         if nlines > 0:
+             self._addChangeset()
+             self.toolbar.EnableUndo()
+-        
++            
++            if self.emit_signals:
++                self.featuresMoved.emit(new_bboxs = new_bboxs,
++                                        old_bboxs = old_bboxs, 
++                                        old_areas_cats = old_areas_cats, 
++                                        new_areas_cats = new_areas_cats)
++
+         return nlines
+ 
+     def MoveSelectedVertex(self, point, move):
+@@ -571,12 +795,21 @@
+         
+         if len(self._display.selected['ids']) != 1:
+             return -1
+-        
++
++        # move only first found vertex in bbox 
++        poList = self._display.GetSelectedIList()
++
++        if self.emit_signals:
++            cList = poList.contents
++            old_bboxs = [self._getBbox(cList.value[0])]
++            old_areas_cats = [self._getLineAreasCategories(cList.value[0])]
++
++            Vect_set_updated(self.poMapInfo, 1)
++            n_up_lines_old = Vect_get_num_updated_lines(self.poMapInfo)
++
+         Vect_reset_line(self.poPoints)
+         Vect_append_point(self.poPoints, point[0], point[1], 0.0)
+-        
+-        # move only first found vertex in bbox 
+-        poList = self._display.GetSelectedIList()
++
+         moved = Vedit_move_vertex(self.poMapInfo, self.popoBgMapInfo, int(self.poBgMapInfo is not None),
+                                   poList, self.poPoints,
+                                   self._display.GetThreshold(type = 'selectThresh'),
+@@ -584,7 +817,17 @@
+                                   move[0], move[1], 0.0,
+                                   1, self._getSnapMode())
+         Vect_destroy_list(poList)
+-        
++
++        if moved > 0 and self.emit_signals:
++            n_up_lines = Vect_get_num_updated_lines(self.poMapInfo)
++
++            new_bboxs = []
++            new_areas_cats = []
++            for i in range(n_up_lines_old, n_up_lines):
++                new_id = Vect_get_updated_line(self.poMapInfo, i)
++                new_bboxs.append(self._getBbox(new_id))
++                new_areas_cats.append(self._getLineAreasCategories(new_id))
++
+         if moved > 0 and self._settings['breakLines']:
+             self._breakLineAtIntersection(Vect_get_num_lines(self.poMapInfo),
+                                           None)
+@@ -592,7 +835,13 @@
+         if moved > 0:
+             self._addChangeset()
+             self.toolbar.EnableUndo()
+-        
++
++            if self.emit_signals:
++                self.vertexMoved.emit(new_bboxs = new_bboxs,  
++                                      new_areas_cats = new_areas_cats, 
++                                      old_areas_cats = old_areas_cats, 
++                                      old_bboxs = old_bboxs)
++
+         return moved
+ 
+     def AddVertex(self, coords):
+@@ -681,6 +930,10 @@
+             self._error.ReadLine(line)
+             return -1
+         
++        if self.emit_signals:
++            old_bboxs = [self._getBbox(line)]
++            old_areas_cats = [self._getLineAreasCategories(line)]
++
+         # build feature geometry
+         Vect_reset_line(self.poPoints)
+         for p in coords:
+@@ -696,6 +949,9 @@
+         
+         newline = Vect_rewrite_line(self.poMapInfo, line, ltype,
+                                     self.poPoints, self.poCats)
++        if newline > 0 and self.emit_signals:
++            new_geom = [self._getBbox(newline)]
++            new_areas_cats = [self._getLineAreasCategories(newline)]
+         
+         if newline > 0 and self._settings['breakLines']:
+             self._breakLineAtIntersection(newline, None)
+@@ -703,7 +959,13 @@
+         if newline > 0:
+             self._addChangeset()
+             self.toolbar.EnableUndo()
+-        
 +    
-+   \param scatt_data pointer to existing struct scdScattData
-+   \param type SC_SCATT_DATA for scatter plots or SC_SCATT_CONDITIONS for selected areas in scatter plot
-+   \param n_vals number of data values
-+   \param data array of values (unsigned char for SC_SCATT_CONDITIONS, unsigned int for SC_SCATT_DATA)
-+ */
-+void I_scd_init_scatt_data(struct scdScattData * scatt_data, int type, int n_vals, void * data)
-+{
-+    scatt_data->n_vals = n_vals;
++            if self.emit_signals:
++                self.lineEdited.emit(old_bboxs = old_bboxs, 
++                                     old_areas_cats = old_areas_cats, 
++                                     new_bboxs = new_bboxs, 
++                                     new_areas_cats = new_areas_cats)
 +
-+    if(type == SC_SCATT_DATA)
-+    {   
-+        if(data)
-+            scatt_data->scatt_vals_arr = (unsigned int *) data;
-+        else {
-+            scatt_data->scatt_vals_arr = (unsigned int *) G_malloc(n_vals * sizeof(unsigned int));
-+            memset(scatt_data->scatt_vals_arr, 0, n_vals * sizeof(unsigned int)); 
-+        }
-+        scatt_data->b_conds_arr = NULL;
-+    }
-+    else if(type == SC_SCATT_CONDITIONS)
-+    {
-+        if(data)
-+            scatt_data->b_conds_arr = (unsigned char *) data;
-+        else {
-+            scatt_data->b_conds_arr = (unsigned char *) G_malloc(n_vals * sizeof(unsigned char));
-+            memset(scatt_data->b_conds_arr, 0, n_vals * sizeof(unsigned char));
-+        }
-+        scatt_data->scatt_vals_arr = NULL;
-+    }
+         return newline
+ 
+     def FlipLine(self):
+@@ -1514,6 +1776,16 @@
+             return 0
+         
+         poList  = self._display.GetSelectedIList()
 +
-+    return;
-+}
++        if self.emit_signals:
++            cList = poList.contents
++            
++            old_bboxs = [self._getBbox(cList.value[0])]
++            old_areas_cats = [self._getLineAreasCategories(cList.value[0])]
 +
++            Vect_set_updated(self.poMapInfo, 1)
++            n_up_lines_old = Vect_get_num_updated_lines(self.poMapInfo)
 +
-+#if 0
-+void I_scd_get_range_min_max(struct scdScattData * scatt_data, CELL * band_1_min, CELL * band_1_max, CELL * band_2_min, CELL * band_2_max)
-+{
+         Vect_reset_line(self.poPoints)
+         Vect_append_point(self.poPoints, coords[0], coords[1], 0.0)
+         
+@@ -1525,15 +1797,35 @@
+         else:
+             ret = Vedit_remove_vertex(self.poMapInfo, poList,
+                                       self.poPoints, thresh)
 +
-+    Rast_get_range_min_max(&(scatt_data->band_1_range), band_1_min, band_2_min);
-+    Rast_get_range_min_max(&(scatt_data->band_2_range), band_2_min, band_2_max);
+         Vect_destroy_list(poList)
 +
-+    return;
-+}
-+s
-+void * I_scd_get_data_ptr(struct scdScattData * scatt_data)
-+{
-+    if(!scatt_data->b_conds_arr)
-+        return scatt_data->b_conds_arr;
-+    else if(!scatt_data->scatt_vals_arr)
-+        return scatt_data->scatt_vals_arr;
++        if ret > 0 and self.emit_signals:
++            new_bboxs = []
++            new_areas_cats = []
 +
-+    return NULL;
-+}
++            n_up_lines = Vect_get_num_updated_lines(self.poMapInfo)
++            for i in range(n_up_lines_old, n_up_lines):
++                new_id = Vect_get_updated_line(self.poMapInfo, i)
++                new_areas_cats.append(self._getLineAreasCategories(new_id))
++                new_bboxs.append(self._getBbox(new_id))
+         
+         if not add and ret > 0 and self._settings['breakLines']:
+             self._breakLineAtIntersection(Vect_get_num_lines(self.poMapInfo),
+                                           None)
+-        
 +
-+int I_scd_set_value(struct scdScattData * scatt_data, unsigned int val_idx, unsigned int val)
-+{
-+    if(val_idx < 0 && val_idx >  scatt_data->n_vals)
-+        return -1;
+         if ret > 0:
+             self._addChangeset()
+-                
 +
-+    if(scatt_data->b_conds_arr)
-+        scatt_data->b_conds_arr[val_idx] = val;
-+    else if(scatt_data->scatt_vals_arr)
-+        scatt_data->scatt_vals_arr[val_idx] = val;
-+    else
-+        return -1;
++        if ret > 0 and self.emit_signals:
++            if add:
++                self.vertexAdded.emit(old_bboxs = old_bboxs, new_bboxs = new_bboxs)
++            else:
++                self.vertexRemoved.emit(old_bboxs = old_bboxs, 
++                                        new_bboxs = new_bboxs,
++                                        old_areas_cats = old_areas_cats,
++                                        new_areas_cats = new_areas_cats)
 +
-+    return 0;
-+}
-+#endif
-Index: lib/vector/Vlib/open.c
+         return 1
+     
+     def GetLineCats(self, line):
+Index: gui/wxpython/mapdisp/toolbars.py
 ===================================================================
---- lib/vector/Vlib/open.c	(revision 57581)
-+++ lib/vector/Vlib/open.c	(working copy)
-@@ -240,7 +240,9 @@
-         }
-         else {
-             char file_path[GPATH_MAX];
--            
-+            /* reduce to current mapset if search path was set */
-+            if(strcmp(Map->mapset, "") == 0)
-+                Map->mapset = G_store(G_mapset());
-             /* temporary map: reduce to current mapset if search path
-              * was set */
-             if (strcmp(Map->mapset, "") == 0)
+--- gui/wxpython/mapdisp/toolbars.py	(revision 57599)
++++ gui/wxpython/mapdisp/toolbars.py	(working copy)
+@@ -239,7 +239,8 @@
+                       (MapIcons["scatter"],     self.parent.OnScatterplot),
+                       (MapIcons["histogram"],   self.parent.OnHistogramPyPlot),
+                       (BaseIcons["histogramD"], self.parent.OnHistogram),
+-                      (MapIcons["vnet"],        self.parent.OnVNet)))
++                      (MapIcons["vnet"],        self.parent.OnVNet),
++                      (MapIcons["scatter"],     self.parent.OnScatterplot2)))
+         
+     def OnDecoration(self, event):
+         """!Decorations overlay menu
+Index: gui/wxpython/mapdisp/frame.py
+===================================================================
+--- gui/wxpython/mapdisp/frame.py	(revision 57599)
++++ gui/wxpython/mapdisp/frame.py	(working copy)
+@@ -225,6 +225,7 @@
+         #
+         self.dialogs = {}
+         self.dialogs['attributes'] = None
++        self.dialogs['scatt_plot'] = None
+         self.dialogs['category'] = None
+         self.dialogs['barscale'] = None
+         self.dialogs['legend'] = None
+@@ -1168,6 +1169,19 @@
+         """!Returns toolbar with zooming tools"""
+         return self.toolbars['map']
+ 
++    def OnScatterplot2(self, event):
++        """!Init interactive scatterplot tools
++        """
++        if self.dialogs['scatt_plot']:
++            self.dialogs['scatt_plot'].Raise()
++            return
++
++        from scatt_plot.dialogs import ScattPlotMainDialog
++        self.dialogs['scatt_plot'] = ScattPlotMainDialog(parent=self, giface=self._giface)
++        
++        self.dialogs['scatt_plot'].CenterOnScreen()
++        self.dialogs['scatt_plot'].Show()
++
+     def OnVNet(self, event):
+         """!Dialog for v.net* modules 
+         """
+Index: gui/icons/grass/polygon.png
+===================================================================
+Cannot display: file marked as a binary type.
+svn:mime-type = application/octet-stream
+Index: gui/icons/grass/polygon.png
+===================================================================
+--- gui/icons/grass/polygon.png	(revision 57599)
++++ gui/icons/grass/polygon.png	(working copy)
+
+Property changes on: gui/icons/grass/polygon.png
+___________________________________________________________________
+Added: svn:mime-type
+## -0,0 +1 ##
++application/octet-stream
+\ No newline at end of property



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