-b flag added to avoid vector topology

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@36565 15284696-431f-4ddb-bdfa-cd5b030d7da7

raster/r.random/local_proto.h

@@ -29,6 +29,7 @@ struct rr_state
     struct RASTER_MAP_PTR nulls, cnulls, buf, cover, min, max, cmin, cmax;
     FILE *fsites;
     int z_geometry;
+    int notopol;
 };
 
 

raster/r.random/main.c

@@ -42,7 +42,7 @@ int main(int argc, char *argv[])
     } parm;
     struct
     {
-	struct Flag *zero, *info, *z_geometry;
+	struct Flag *zero, *info, *z_geometry, *notopol_flag;
     } flag;
 
     G_gisinit(argv[0]);
@@ -89,6 +89,11 @@ int main(int argc, char *argv[])
     flag.z_geometry->key = 'd';
     flag.z_geometry->description = _("Generate vector points as 3D points");
 
+    flag.notopol_flag = G_define_flag();
+    flag.notopol_flag->key = 'b';
+    flag.notopol_flag->description = _("Do not build topology in points mode");
+    flag.notopol_flag->guisection = _("Points");
+
     if (G_parser(argc, argv) != 0)
 	exit(EXIT_FAILURE);
 
@@ -106,6 +111,7 @@ int main(int argc, char *argv[])
     myState.outraster = parm.raster->answer;
     myState.outvector = parm.sites->answer;
     myState.z_geometry = flag.z_geometry->answer;
+    myState.notopol = flag.notopol_flag->answer;
 
     /* If they only want info we ignore the rest */
     get_stats(&myState);

raster/r.random/r.random.html

@@ -6,7 +6,7 @@ coordinates of points whose locations have been randomly
 determined.  The program locates these randomly generated
 vector points (sites) within the current geographic region and mask (if
 any), on non-NULL category value data areas within a
-user-specified raster map layer.  If the user sets the
+user-specified raster map layer. If the user sets the
 <b>-z</b> flag, points will be randomly generated across all
 cells (even those with NULL values).
 
@@ -37,6 +37,11 @@ column  <em>covervalue</em> is populated with raster values from
 the <em>cover</em> map.
 
 <p>
+If the user sets the <b>-b</b> flag, vector points are written without
+topology to minimize the required resources. This is suitable input
+to <em>v.surf.rst</em> and other vector modules.
+
+<p>
 The user may specify the quantity of random locations to be
 generated either as a <em>positive integer</em> (e.g., 10),
 or as a <em>percentage of the raster map layer's cells</em> 
@@ -108,9 +113,12 @@ parameter.
 
 <h2>SEE ALSO</h2>
 
-<em><a href="g.region.html">g.region</a></em><br>
-<em><a href="r.reclass.html">r.reclass</a></em><br>
-<em><a href="v.random.html">v.random</a></em><br>
+<em>
+<a href="g.region.html">g.region</a><br>
+<a href="r.reclass.html">r.reclass</a><br>
+<a href="v.random.html">v.random</a><br>
+<a href="v.surf.rst.html">v.surf.rst</a>
+</em>
 
 
 <h2>AUTHOR</h2>

raster/r.random/random.c

@@ -252,7 +252,8 @@ int execute_random(struct rr_state *theState)
     if (theState->outvector) {
 	db_commit_transaction(driver);
 	db_close_database_shutdown_driver(driver);
-	Vect_build(&Out);
+	if (theState->notopol != 1)
+	    Vect_build(&Out);
 	Vect_close(&Out);
     }
     if (theState->outraster)