I have done something incorrectly trying to create a mask and need a
clue-stick to correct the situation. Here's what I did:
1. Digitized a line to define an area on a base raster map; saved it as
anal_area_mask.
2. v.to.rast in=bndy_conditions type=area out=anal_area_mask use=cat
3. Removed existing mask: r.mask -r
4. Created new mask: r.mask rast=anal_area_mask
5. Selected a raster map in the Layer Manager window.
6. No map displayed in the Map Display window; it's plain white.
Did editing the digitized line to an area, and saving it as a line, affect
how it was converted to a raster map? Yep.
If I change the vector map type from line to boundary or area it is not
visible.
How do I convert this vector line to either a boundary or area (whichever
is appropriate) so it produces a raster mask?
Rich
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