Hamish:
> > In doing that I noticed that the "-e" flag doesn't seem to be connected to
> > any code. Anyone know what it is supposed to do? (added in cvs
> > vector/v.in.ogr/main.c rev 1.29)
Markus:
> It should do the same as r.in.gdal:
> -e Extend location extents based on new dataset
>
> To modify the DEFAULT_WIND file according to the map extent.
see attached patch. (untested)
question- earlier in the v.in.ogr code as part of the projection-override check
there is a comment:
/* G_get_window seems to be unreliable if the location has been changed */
G__get_window ( &loc_wind, "", "DEFAULT_WIND", "PERMANENT");
should we worry about that for the extend flag?
Hamish
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? OBJ.i686-pc-linux-gnu
? v.in.ogr.tmp.html
? vio_extendflag.diff
? vio_region.diff
Index: main.c
===================================================================
RCS file: /home/grass/grassrepository/grass6/vector/v.in.ogr/main.c,v
retrieving revision 1.86
diff -u -r1.86 main.c
--- main.c 5 Nov 2007 07:14:15 -0000 1.86
+++ main.c 6 Nov 2007 00:47:55 -0000
@@ -31,6 +31,11 @@
#include "ogr_api.h"
#include "global.h"
+#ifndef MAX
+# define MIN(a,b) ((a<b) ? a : b)
+# define MAX(a,b) ((a>b) ? a : b)
+#endif
+
int geom(OGRGeometryH hGeom, struct Map_info *Map, int field, int cat, double min_area, int type, int mk_centr );
int centroid(OGRGeometryH hGeom, CENTR *Centr, SPATIAL_INDEX *Sindex, int field, int cat, double min_area, int type);
@@ -993,6 +998,30 @@
*/
Vect_close ( &Map );
+
+
+/* -------------------------------------------------------------------- */
+/* Extend current window based on dataset. */
+/* -------------------------------------------------------------------- */
+ if( extend_flag->answer )
+ {
+ G_get_default_window( &loc_wind );
+
+ loc_wind.north = MAX(loc_wind.north,cellhd.north);
+ loc_wind.south = MIN(loc_wind.south,cellhd.south);
+ loc_wind.west = MIN(loc_wind.west, cellhd.west);
+ loc_wind.east = MAX(loc_wind.east, cellhd.east);
+
+ loc_wind.rows = (int) ceil((loc_wind.north - loc_wind.south)
+ / loc_wind.ns_res);
+ loc_wind.south = loc_wind.north - loc_wind.rows * loc_wind.ns_res;
+
+ loc_wind.cols = (int) ceil((loc_wind.east - loc_wind.west)
+ / loc_wind.ew_res);
+ loc_wind.east = loc_wind.west + loc_wind.cols * loc_wind.ew_res;
+
+ G__put_window(&loc_wind, "../PERMANENT", "DEFAULT_WIND");
+ }
if (with_z && !z_flag->answer )
G_warning (_("Input data contains 3D features. Created vector is 2D only, "
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