I'm having an issue with the proper display of islands in GRASS. I have
imported some shapefiles from GeoGratis (http://www.geogratic.ca -
topographic data source for Canada) and the islands always show up filled
in. It seems that in these files the islands are categorized so using
"d.vect water_bodies cats=1-999999" does not eliminate the islands. There
doesn't seem to be any rhyme or reason to GeoGratises categories so I
can't filter out islands based on categories.
Is there any way I can tell grass to assign a particular category to all
islands? Doing a v.info tells me how many islands there are so it
obviously knows how to find them. Or if that is the wrong approach, what
would be the correct?
Posted by holden caulfield on February 10, 2008, 9:31 am
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