[GRASS-user] Adding a semi-transparent layer

[Michael Barton]

You must render your maps out to *.PPM files with *.PPG mask files. Then you
can composite them with g.pnncomp. You can look in mapdisp.tcl to get an
idea of how to do it.

Michael


On 3/21/07 1:54 PM, "José Antonio Ruiz Arias" <jararias at ujaen.es> wrote:

> Dear list,
> 
> on the map display of the GRASS gui is very easy to get a transparency
> effect on a layer, but I have been trying to do it exclusively by command
> line to script a task and I didn¹t success. Does anyone know how can I solve
> this issue? The aim is to add a semi-transparent layer with climatological
> information above a terrain raster.
> 
> 
> Thanks in advance,
> 
> José A. Ruiz
> 
> 
> 

__________________________________________
Michael Barton, Professor of Anthropology
School of Human Evolution & Social Change
Center for Social Dynamics & Complexity
Arizona State University

phone: 480-965-6213
fax: 480-965-7671
www: http://www.public.asu.edu/~cmbarton