According to v.build output, when exporting areas, You should get 64 closed area features with some holes. Please double check Your v.out.ogr parameters and output of v.category.
Maris. 2013/1/12 Brian Sanjeewa Rupasinghe <[email protected]>: > Hi Maris, Thanks. Please see following the build info of the Grass Vector > file that i need to convert to a shapefile. > > Cheers, Brian. > > (Sat Jan 12 14:25:02 2013) > v.build map=MaskVector@user1 > Building topology for vector map <MaskVector@user1>... > Registering primitives... > 184 primitives registered > 4948 vertices registered > Building areas... > 110 areas built > 91 isles built > Attaching islands... > Attaching centroids... > Number of nodes: 101 > Number of primitives: 184 > Number of points: 0 > Number of lines: 0 > Number of boundaries: 120 > Number of centroids: 64 > Number of areas: 110 > Number of isles: 91 > (Sat Jan 12 14:25:02 2013) Command finished (0 sec) > > On Sat, Jan 12, 2013 at 12:52 PM, Maris Nartiss <[email protected]> wrote: >> >> Please, post output of v.build >> >> 2013/1/12 Brian Sanjeewa Rupasinghe <[email protected]>: >> > Hi, >> > >> > I used v.category. But it too keeps on running failing to add >> > categories. >> > >> > >> > On Fri, Jan 11, 2013 at 11:28 PM, Maris Nartiss <[email protected]> >> > wrote: >> >> >> >> Try to run on Your vector dataset: >> >> v.category option=add type=centroid >> >> Then export with v.out.ogr. >> >> >> >> Reason - v.out.ogr is working correctly and Your centroids have no >> >> CATs and thus are not exported. That would explain "not correctly >> >> created" - an empty shapefile. >> >> >> >> Hope it helps, >> >> Maris. >> >> >> >> 2013/1/11 Brian Sanjeewa Rupasinghe <[email protected]>: >> >> > Hi, >> >> > >> >> > I am using GRASS 7svn in windows. Using v.out.ogr function in GRASS i >> >> > converted a set of polygons (some of which have holes as well) into a >> >> > shape >> >> > file. >> >> > However, when i do not tick the box in Selection pane: ‘Also export >> >> > features >> >> > without category (not labelled) otherwise only features with category >> >> > are >> >> > exported, >> >> > the function keeps on executing and shapefile is not correctly >> >> > created. >> >> > When >> >> > i tick this, the shapefile is created but filling all holes as >> >> > separate >> >> > polygons. Any comment on this behaviour? >> >> > >> >> > Cheers, Brian. >> >> > >> >> > _______________________________________________ >> >> > grass-user mailing list >> >> > [email protected] >> >> > http://lists.osgeo.org/mailman/listinfo/grass-user >> >> > >> > >> > > > _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
