Hello,
I need to start with vector data in Grass, but I don't understand how it works with data other than single points.
I want to achive 2 things:
1. I want to display in an country outline rectangulars which show areas where I have detailed topographical maps (ideally displayed as filles areas).
2. I want to hack into Grass 3d-polygons (lines) with fixed coordinates. In a second step I want to combine these get profiles which show these polygons with surface data (SRTM). I think I know how to do this second step but I did not figure out how to import the data in the right way.
Is there a manual which gives an good introduction in vector handling? I could not find one which helped to solve my problem. Any references are welcome.
Many thanks
Wolfgang