Joop Goedbloed wrote:
Hello Grassteam
Te create catchment boundaries (closed polygon boundaries) for use in InfoWorks suwer-system
I have an autocad file with buildings and streets containing lines.For conversion I have imported it in Grass (6.2.1. Linux)
en use the folowing commands I do not know if it is the right sequens.1... v.build.polylines (to make polygons from lines)
2... v.category ( to add a catogory)
3... v.type ( to change lines to boundaries)
4... v.centroids ( to add missing ventroids)It works fine but
1 there are some missing linesegments (thats OK need some handjob)
2 boundaries containing arc's are wrong (need some handjob)
3 some boundaries are "OK" but it is not possible to create areas.
See attatchment (gray boundaries and green node)
what is going wrong en what is the right command sequens to create areas.thanks
Joop Goedbloed
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