[GRASS-SVN] r30021 - grass/trunk/vector/v.edit/lib

[svn_grass at osgeo.org]

Author: martinl
Date: 2008-02-08 16:07:09 -0500 (Fri, 08 Feb 2008)
New Revision: 30021

Added:
   grass/trunk/vector/v.edit/lib/chtype.c
Log:
v.edit: missing file added

Added: grass/trunk/vector/v.edit/lib/chtype.c
===================================================================
--- grass/trunk/vector/v.edit/lib/chtype.c	                        (rev 0)
+++ grass/trunk/vector/v.edit/lib/chtype.c	2008-02-08 21:07:09 UTC (rev 30021)
@@ -0,0 +1,82 @@
+/**
+   \brief Vedit library - change feature type
+
+   Supported conversions:
+    - point<->centroid
+    - line<->boundary
+
+   This program is free software under the
+   GNU General Public License (>=v2).
+   Read the file COPYING that comes with GRASS
+   for details.
+
+   \author (C) 2008 by the GRASS Development Team
+   Martin Landa <landa.martin gmail.com>
+
+   \date 2008
+*/
+
+#include "vedit.h"
+
+int Vedit_chtype_lines(struct Map_info *Map, struct ilist *List,
+		       int *npoints, int *ncentroids,
+		       int *nlines, int *nboundaries)
+{
+    int i;
+    int nret, line;
+    int type, newtype;
+    struct line_pnts *Points;
+    struct line_cats *Cats;
+
+    nret = 0;
+    *npoints = *ncentroids = *nlines = *nboundaries = 0;
+
+    Points = Vect_new_line_struct();
+    Cats = Vect_new_cats_struct();
+
+    for (i = 0; i < List->n_values; i++) {
+	line = List->value[i];
+	if (!Vect_line_alive(Map, line))
+	    continue;
+	type = Vect_read_line(Map, Points, Cats, line);
+	if (type < 0) {
+	    return -1;
+	}
+	switch (type) {
+	case GV_POINT:
+	    newtype = GV_CENTROID;
+	    (*npoints)++;
+	    break;
+	case GV_CENTROID:
+	    newtype = GV_POINT;
+	    (*ncentroids)++;
+	    break;
+	case GV_LINE:
+	    newtype = GV_BOUNDARY;
+	    (*nlines)++;
+	    break;
+	case GV_BOUNDARY:
+	    newtype = GV_LINE;
+	    (*nboundaries)++;
+	    break;
+	default:
+	    newtype = -1;
+	    break;
+	}
+	
+	G_debug(3, "Vedit_chtype_lines(): line=%d, from_type=%d, to_type=%d",
+		line, type, newtype);
+	
+	if (newtype > 0) {
+	    if (Vect_rewrite_line(Map, line, newtype, Points, Cats) < 0) {
+		return -1;
+	    }
+	    nret++;
+	}
+    }
+    
+    Vect_destroy_line_struct(Points);
+    Vect_destroy_cats_struct(Cats);
+
+    return nret;
+}


Property changes on: grass/trunk/vector/v.edit/lib/chtype.c
___________________________________________________________________
Name: svn:keywords
   + Author Date Id
Name: svn:minetype
   + text/x-csrc
Name: svn:eol-style
   + native