On Mon, 2009-02-16 at 20:01 -0500, Kurt Springs wrote: > Hi folks, > I do have another problem I would like some thoughts on. > > I have vector areas representing water areas (lakes and oceans). I > purchased these areas from the Irish and Northern Irish Ordinance > Survey. They came as .dxf packages. I extracted them but they would > not fill. I opened them in v.digit and found that the vector lines > were broken, even missing in places. I did my best to close the > vectors. The ocean was just a coastline. I had to modify it by > attaching a the bounding box and taking away everything that didn't > look like the ocean. Getting these areas to fill even though I think > I managed to join most of the nodes. Some I think I really did join, > some I know would not join.
> Is there a simple(ish) way to generate areas that will be I can turn > blue and say "here are the lakes and oceans"? I don't need them for > analysis, but I would like to put maps generated into my dissertation > and have them be pleasing to the eye. > > Any help on this will be appreciated. > Kurt FWIW, once I received a .dxf file that contained burned areas digitised by GPS-supported devices. After getting the file in GRASS, it looked really bad. As you describe, open "boundaries", missing parts of lines. I had to "restore" it manually. I don't think there is another option than hard-hand-working here. Except if you are lucky and you could use v.clean to close boundaries, add centroids with v.centroid and play around with colors. But I doubt it. Kind regards, Nikos _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
