[GRASS-dev] ps3.map: join two rasters

Hamish hamish_b at yahoo.com
Wed Feb 18 18:38:23 EST 2009


Jorge wrote:
> Yes, but is more easy (and clean) add a option as 'gradient [y|N]' to
> permit force gradient in CELL. I's a simple 'if' in the C code.

right.


> > and the previous crappy work around here was to use r.mapcalc's
> > r#map, g#map, b#map operators and patch the two maps for each band.
> 
> Well, but how do yo mask vectors?

I am not sure I understand. Do you want the raster map placed over top of
a vector area? Or vector area over the top but semi-transparent? or..?

Also, I try to understand your raster overlay method- can the background
raster retain its own color map or will it have to be monochrome? (with a
grey, blue, ... tinge)


Hamish



      



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