[GRASS-SVN] r31857 - in grass-addons/gipe: . i.dn2full.l7 i.eb.eta
i.water
svn_grass at osgeo.org
svn_grass at osgeo.org
Thu Jun 26 21:43:43 EDT 2008
Author: ychemin
Date: 2008-06-26 21:43:43 -0400 (Thu, 26 Jun 2008)
New Revision: 31857
Added:
grass-addons/gipe/i.water/
grass-addons/gipe/i.water/Makefile
grass-addons/gipe/i.water/description.html
grass-addons/gipe/i.water/main.c
grass-addons/gipe/i.water/water.c
grass-addons/gipe/i.water/water_modis.c
Modified:
grass-addons/gipe/i.dn2full.l7/main.c
grass-addons/gipe/i.eb.eta/main.c
Log:
water detection module
Modified: grass-addons/gipe/i.dn2full.l7/main.c
===================================================================
--- grass-addons/gipe/i.dn2full.l7/main.c 2008-06-27 01:00:59 UTC (rev 31856)
+++ grass-addons/gipe/i.dn2full.l7/main.c 2008-06-27 01:43:43 UTC (rev 31857)
@@ -48,13 +48,10 @@
int nrows, ncols;
int row,col;
- int verbose=1;
struct GModule *module;
struct Option *input,*output;
- struct Flag *flag1;
struct History history; //metadata
-
/************************************/
/* FMEO Declarations*****************/
char history_buf[200];
@@ -74,7 +71,7 @@
int i=0,j=0;
void *inrast[MAXFILES];
- unsigned char *outrast[MAXFILES];
+ DCELL *outrast[MAXFILES];
RASTER_MAP_TYPE in_data_type[MAXFILES];
RASTER_MAP_TYPE out_data_type = DCELL_TYPE; /* 0=numbers 1=text */
@@ -110,19 +107,10 @@
input->gisprompt = _("old_file,file,file");
input->description= _("Landsat 7ETM+ Header File (.met)");
- output = G_define_option() ;
+ output = G_define_standard_option(G_OPT_R_OUTPUT) ;
output->key = _("output");
- output->type = TYPE_STRING;
- output->required = YES;
- output->gisprompt = _("new,cell,raster");
output->description= _("Base name of the output layers (will add .x)");
- /* Define the different flags */
-
- flag1 = G_define_flag() ;
- flag1->key =_('q');
- flag1->description =_("Quiet");
-
/********************/
if (G_parser(argc, argv))
exit (-1);
@@ -130,7 +118,6 @@
metfName = input->answer;
result = output->answer;
- verbose = (!flag1->answer);
//******************************************
//Fetch parameters for DN2Rad2Ref correction
l7_in_read(metfName,b1,b2,b3,b4,b5,b61,b62,b7,b8,lmin,lmax,qcalmin,qcalmax,&sun_elevation,&sun_azimuth,&day,&month,&year);
@@ -410,9 +397,7 @@
DCELL d[MAXFILES];
for (row = 0; row < nrows; row++)
{
- if (verbose){
- G_percent (row, nrows, 2);
- }
+ G_percent (row, nrows, 2);
/* read input map */
for (i=0;i<MAXFILES;i++)
{
@@ -429,14 +414,14 @@
dout[i]=dn2rad_landsat7(lmin[i],lmax[i],qcalmax[i],qcalmin[i],d[i]);
if(i==5||i==6){//if band 61/62, process brightness temperature
if(dout[i]<=0.0){
- dout[i]=-999.990;
+ G_set_d_null_value(&outrast[i][col],1);
}else{
dout[i]=tempk_landsat7(dout[i]);
}
}else{//process reflectance
dout[i]=rad2ref_landsat7(dout[i],doy,sun_elevation,kexo[i]);
}
- ((DCELL *) outrast[i])[col] = dout[i];
+ outrast[i][col] = dout[i];
}
}
for(i=0;i<MAXFILES;i++){
Modified: grass-addons/gipe/i.eb.eta/main.c
===================================================================
--- grass-addons/gipe/i.eb.eta/main.c 2008-06-27 01:00:59 UTC (rev 31856)
+++ grass-addons/gipe/i.eb.eta/main.c 2008-06-27 01:43:43 UTC (rev 31857)
@@ -47,7 +47,7 @@
int i=0,j=0;
void *inrast_rnetday, *inrast_evapfr, *inrast_tempk;
- unsigned char *outrast1;
+ DCELL *outrast1;
RASTER_MAP_TYPE data_type_output=DCELL_TYPE;
RASTER_MAP_TYPE data_type_rnetday;
RASTER_MAP_TYPE data_type_evapfr;
@@ -180,17 +180,15 @@
d_tempk = ((DCELL *) inrast_tempk)[col];
break;
}
- if(G_is_d_null_value(&d_rnetday)){
- ((DCELL *) outrast1)[col] = -999.99;
- }else if(G_is_d_null_value(&d_evapfr)){
- ((DCELL *) outrast1)[col] = -999.99;
- }else if(G_is_d_null_value(&d_tempk)){
- ((DCELL *) outrast1)[col] = -999.99;
+ if(G_is_d_null_value(&d_rnetday)||
+ G_is_d_null_value(&d_evapfr)||
+ G_is_d_null_value(&d_tempk)){
+ G_set_d_null_value(&outrast1[col],1);
}else {
/************************************/
/* calculate soil heat flux */
d = et_a(d_rnetday,d_evapfr,d_tempk);
- ((DCELL *) outrast1)[col] = d;
+ outrast1[col] = d;
}
}
if (G_put_raster_row (outfd1, outrast1, data_type_output) < 0)
Added: grass-addons/gipe/i.water/Makefile
===================================================================
--- grass-addons/gipe/i.water/Makefile (rev 0)
+++ grass-addons/gipe/i.water/Makefile 2008-06-27 01:43:43 UTC (rev 31857)
@@ -0,0 +1,14 @@
+MODULE_TOPDIR = ../..
+
+PGM = i.water
+
+LIBES = $(GISLIB)
+DEPENDENCIES = $(GISDEP)
+
+include $(MODULE_TOPDIR)/include/Make/Module.make
+
+ifneq ($(USE_LARGEFILES),)
+ EXTRA_CFLAGS = -D_FILE_OFFSET_BITS=64
+endif
+
+default: cmd
Added: grass-addons/gipe/i.water/description.html
===================================================================
--- grass-addons/gipe/i.water/description.html (rev 0)
+++ grass-addons/gipe/i.water/description.html 2008-06-27 01:43:43 UTC (rev 31857)
@@ -0,0 +1,32 @@
+<H2>DESCRIPTION</H2>
+
+<EM>i.water</EM> calculates a water layer after Xiao et al (2005) and Roy et al (2005).
+It takes input of Diurnal Net Radiation (see r.sun), evaporative fraction (see r.eb.evapfr) and surface skin temprature.
+
+<H2>REFERENCES</H2>
+
+Xiao X., Boles S., Liu J., Zhuang D., Frokling S., Li C., Salas W., Moore III B. (2005). Mapping paddy rice agriculture in southern China using multi-temporal MODIS images. Remote Sensing of Environment 95:480-492.
+
+Roy D.P., Jin Y., Lewis P.E., Justice C.O. (2005). Prototyping a global algorithm for systematic fire-affected area mapping using MODIS time series data. Remote Sensing of Environment 97:137-162.
+
+<H2>NOTES</H2>
+
+<H2>TODO</H2>
+
+
+<H2>SEE ALSO</H2>
+
+<em>
+<A HREF="r.sun.html">r.sun</A><br>
+<A HREF="i.albedo.html">i.albedo</A><br>
+<A HREF="i.vi.html">i.vi</A><br>
+</em>
+
+
+<H2>AUTHORS</H2>
+
+Yann Chemin, International Rice Research Insitute, The Philippines<BR>
+
+
+<p>
+<i>Last changed: $Date: 2008/06/27 10:00:00 $</i>
Added: grass-addons/gipe/i.water/main.c
===================================================================
--- grass-addons/gipe/i.water/main.c (rev 0)
+++ grass-addons/gipe/i.water/main.c 2008-06-27 01:43:43 UTC (rev 31857)
@@ -0,0 +1,242 @@
+/****************************************************************************
+ *
+ * MODULE: i.water
+ * AUTHOR(S): Yann Chemin - yann.chemin at gmail.com
+ * PURPOSE: Calculates if water is there (value=1)
+ * two versions, 1) generic (albedo,ndvi)
+ * 2) Modis (surf_refl_7,ndvi)
+ *
+ * COPYRIGHT: (C) 2008 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.
+ *
+ *****************************************************************************/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <grass/gis.h>
+#include <grass/glocale.h>
+
+
+double water(double albedo, double ndvi);
+double water_modis(double surf_ref_7, double ndvi);
+
+int main(int argc, char *argv[])
+{
+ struct Cell_head cellhd; //region+header info
+ char *mapset; // mapset name
+ int nrows, ncols;
+ int row,col;
+
+ struct GModule *module;
+ struct Option *input1, *input2, *input3, *output1;
+
+ struct Flag *flag1;
+ struct History history; //metadata
+
+ /************************************/
+ /* FMEO Declarations*****************/
+ char *name; // input raster name
+ char *result1; //output raster name
+ //File Descriptors
+ int infd_ndvi, infd_albedo, infd_ref7;
+ int outfd1;
+
+ char *ndvi,*albedo,*ref7;
+ int i=0,j=0;
+
+ void *inrast_ndvi, *inrast_albedo, *inrast_ref7;
+ CELL *outrast1;
+ RASTER_MAP_TYPE data_type_output=CELL_TYPE;
+ RASTER_MAP_TYPE data_type_ndvi;
+ RASTER_MAP_TYPE data_type_albedo;
+ RASTER_MAP_TYPE data_type_ref7;
+ /************************************/
+ G_gisinit(argv[0]);
+
+ module = G_define_module();
+ module->keywords = _("water, detection");
+ module->description = _("Water detection, 1 if found, 0 if not");
+
+ /* Define the different options */
+ input1 = G_define_standard_option(G_OPT_R_INPUT) ;
+ input1->key = _("ndvi");
+ input1->description=_("Name of the NDVI map [-]");
+ input1->answer =_("ndvi");
+
+ input2 = G_define_standard_option(G_OPT_R_INPUT) ;
+ input2->key =_("albedo");
+ input2->required = NO ;
+ input2->description=_("Name of the Albedo map [-]");
+
+ input3 = G_define_standard_option(G_OPT_R_INPUT) ;
+ input3->key =_("Modref7");
+ input3->required = NO ;
+ input3->description=_("Name of the Modis surface reflectance band 7 [-]");
+
+ output1 = G_define_standard_option(G_OPT_R_OUTPUT) ;
+ output1->key =_("water");
+ output1->description=_("Name of the output water layer [0/1]");
+ output1->answer =_("water");
+ /********************/
+ if (G_parser(argc, argv))
+ exit (EXIT_FAILURE);
+
+ ndvi = input1->answer;
+ if(input2->answer)
+ albedo = input2->answer;
+ if(input3->answer)
+ ref7 = input3->answer;
+
+
+ if(!input2->answer&&!input3->answer){
+ G_fatal_error(_("ERROR: needs either Albedo or Modis surface reflectance in band 7, bailing out."));
+ }
+
+ result1 = output1->answer;
+ /***************************************************/
+ mapset = G_find_cell2(ndvi, "");
+ if (mapset == NULL) {
+ G_fatal_error(_("cell file [%s] not found"), ndvi);
+ }
+ data_type_ndvi = G_raster_map_type(ndvi,mapset);
+ if ( (infd_ndvi = G_open_cell_old (ndvi,mapset)) < 0)
+ G_fatal_error (_("Cannot open cell file [%s]"), ndvi);
+ if (G_get_cellhd (ndvi, mapset, &cellhd) < 0)
+ G_fatal_error (_("Cannot read file header of [%s])"), ndvi);
+ inrast_ndvi = G_allocate_raster_buf(data_type_ndvi);
+ /***************************************************/
+ if(input2->answer){
+ mapset = G_find_cell2 (albedo, "");
+ if (mapset == NULL) {
+ G_fatal_error(_("cell file [%s] not found"),albedo);
+ }
+ data_type_albedo = G_raster_map_type(albedo,mapset);
+ if ( (infd_albedo = G_open_cell_old (albedo,mapset)) < 0)
+ G_fatal_error(_("Cannot open cell file [%s]"), albedo);
+ if (G_get_cellhd (albedo, mapset, &cellhd) < 0)
+ G_fatal_error(_("Cannot read file header of [%s]"), albedo);
+ inrast_albedo = G_allocate_raster_buf(data_type_albedo);
+ }
+ /***************************************************/
+ if(input3->answer){
+ mapset = G_find_cell2 (ref7, "");
+ if (mapset == NULL) {
+ G_fatal_error(_("Cell file [%s] not found"), ref7);
+ }
+ data_type_ref7 = G_raster_map_type(ref7,mapset);
+ if ( (infd_ref7 = G_open_cell_old (ref7,mapset)) < 0)
+ G_fatal_error(_("Cannot open cell file [%s]"), ref7);
+ if (G_get_cellhd (ref7, mapset, &cellhd) < 0)
+ G_fatal_error(_("Cannot read file header of [%s]"), ref7);
+ inrast_ref7 = G_allocate_raster_buf(data_type_ref7);
+ }
+ /***************************************************/
+ G_debug(3, "number of rows %d",cellhd.rows);
+ nrows = G_window_rows();
+ ncols = G_window_cols();
+ outrast1 = G_allocate_raster_buf(data_type_output);
+ /* Create New raster files */
+ if ( (outfd1 = G_open_raster_new (result1,data_type_output)) < 0)
+ G_fatal_error(_("Could not open <%s>"),result1);
+ /* Process pixels */
+ for (row = 0; row < nrows; row++)
+ {
+ CELL d;
+ DCELL d_ndvi;
+ DCELL d_albedo;
+ DCELL d_ref7;
+ G_percent(row,nrows,2);
+ /* read input maps */
+ if(G_get_raster_row(infd_ndvi,inrast_ndvi,row,data_type_ndvi)<0)
+ G_fatal_error(_("Could not read from <%s>"),ndvi);
+ if(input2->answer){
+ if(G_get_raster_row(infd_albedo,inrast_albedo,row,data_type_albedo)<0)
+ G_fatal_error(_("Could not read from <%s>"),albedo);
+ }
+ if(input3->answer){
+ if(G_get_raster_row(infd_ref7,inrast_ref7,row,data_type_ref7)<0)
+ G_fatal_error(_("Could not read from <%s>"),ref7);
+ }
+ /*process the data */
+ for (col=0; col < ncols; col++)
+ {
+ switch(data_type_ndvi){
+ case CELL_TYPE:
+ d_ndvi = (double) ((CELL *) inrast_ndvi)[col];
+ break;
+ case FCELL_TYPE:
+ d_ndvi = (double) ((FCELL *) inrast_ndvi)[col];
+ break;
+ case DCELL_TYPE:
+ d_ndvi = ((DCELL *) inrast_ndvi)[col];
+ break;
+ }
+ if(input2->answer){
+ switch(data_type_albedo){
+ case CELL_TYPE:
+ d_albedo = (double) ((CELL *) inrast_albedo)[col];
+ break;
+ case FCELL_TYPE:
+ d_albedo = (double) ((FCELL *) inrast_albedo)[col];
+ break;
+ case DCELL_TYPE:
+ d_albedo = ((DCELL *) inrast_albedo)[col];
+ break;
+ }
+ }
+ if(input3->answer){
+ switch(data_type_ref7){
+ case CELL_TYPE:
+ d_ref7 = (double) ((CELL *) inrast_ref7)[col];
+ break;
+ case FCELL_TYPE:
+ d_ref7 = (double) ((FCELL *) inrast_ref7)[col];
+ break;
+ case DCELL_TYPE:
+ d_ref7 = ((DCELL *) inrast_ref7)[col];
+ break;
+ }
+ }
+ if(G_is_d_null_value(&d_ndvi)||
+ (input2->answer&&G_is_d_null_value(&d_albedo))||
+ (input3->answer&&G_is_d_null_value(&d_ref7))){
+ G_set_c_null_value(&outrast1[col],1);
+ }else {
+ /************************************/
+ /* calculate water detection */
+ if(input2->answer){
+ d = water(d_albedo,d_ndvi);
+ } else if (input3->answer){
+ d = water_modis(d_ref7,d_ndvi);
+ }
+ outrast1[col] = d;
+ }
+ }
+ if (G_put_raster_row (outfd1, outrast1, data_type_output) < 0)
+ G_fatal_error(_("Cannot write to output raster file"));
+ }
+
+ G_free (inrast_ndvi);
+ G_close_cell (infd_ndvi);
+ if(input2->answer){
+ G_free (inrast_albedo);
+ G_close_cell (infd_albedo);
+ }
+ if(input3->answer){
+ G_free (inrast_ref7);
+ G_close_cell (infd_ref7);
+ }
+ G_free (outrast1);
+ G_close_cell (outfd1);
+
+ G_short_history(result1, "raster", &history);
+ G_command_history(&history);
+ G_write_history(result1,&history);
+
+ exit(EXIT_SUCCESS);
+}
+
Added: grass-addons/gipe/i.water/water.c
===================================================================
--- grass-addons/gipe/i.water/water.c (rev 0)
+++ grass-addons/gipe/i.water/water.c 2008-06-27 01:43:43 UTC (rev 31857)
@@ -0,0 +1,13 @@
+#include<stdio.h>
+
+int water(double albedo, double ndvi)
+{
+ double result;
+ if (albedo<0.1&&ndvi<0.1){
+ result = 1 ;
+ } else {
+ result = 0 ;
+ }
+ return result;
+}
+
Added: grass-addons/gipe/i.water/water_modis.c
===================================================================
--- grass-addons/gipe/i.water/water_modis.c (rev 0)
+++ grass-addons/gipe/i.water/water_modis.c 2008-06-27 01:43:43 UTC (rev 31857)
@@ -0,0 +1,13 @@
+#include<stdio.h>
+
+int water_modis(double surf_ref_7, double ndvi)
+{
+ double result;
+ if (surf_ref_7<0.04&&ndvi<0.1){
+ result = 1 ;
+ } else {
+ result = 0 ;
+ }
+ return result;
+}
+
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