Re: [GRASS-user] Enclose the polygons within 50 metres

2008-06-18 Thread Hamish
Gabriele wrote: Indeed this was doing. I made the buffer (but on many polygons gives a bit of problems) v.buffer can have some errors. It is currently being rewritten and we should have something better in place by the end of the summer. Before then, and if you are converting to raster

Re: [GRASS-user] Enclose the polygons within 50 metres

2008-06-17 Thread Christian Schwartze
Hi, don't know if I unterstood you right, but what about buffering your polygons (v.buffer with buffer=50m), i.e. the buildings. So you get a map of overlapping areas where features not more far away than 50 meters. Afterwards you can use v.to.rast for rasterizing the buffer zones and describing

Re: [GRASS-user] Enclose the polygons within 50 metres

2008-06-17 Thread Gabriele N.
Hi Christian Indeed this was doing. I made the buffer (but on many polygons gives a bit of problems) and now , as suggested by you, I can go to raster with v.to.rast. Or should I try to dissolve the buffer by working again with the vector. Thanks Gabriele Christian Schwartze-2 wrote:

[GRASS-user] Enclose the polygons within 50 metres

2008-06-15 Thread Gabriele N.
Hi all I have 2 vector polygonal; one representing the buildings and another that represents the infrastructure. I think to put them together with v.patch. I have to create another vector polygonal, which is to enclose all the polygons that are close to each other within 50 metres. I need to