Hi all. I am a beginner of grass-GIS. I want to divide line data with a grid. I want to find the length of line data divided by every grid afterwards. Finally, I want to do a raster display of the length of line data every grid.
For example, river line with a grid. For example, road line with a grid. For example, bird migration route with a grid. I succeeded by the import of line data. I succeeded by the making of grid data. However, I failed by the overlay analysis of line data and grid data. The command function that I used is an overlay and select. ---- v.overlay ainput=line-data atype=line alayer=1 binput=grid btype=area blayer=1 output=length_grid operator=or olayer=1,0,0 v.select ainput=grid binput=line-data out=length_grid op=overlap ----- Please teach me technique to perform this. If it is FAQ, I apologize. shimada from japan. _______________________________________________ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
