[GRASS-user] xganim & underlying data?

Glynn Clements glynn at gclements.plus.com
Wed Aug 8 16:12:08 EDT 2007

M S wrote:

> > > Any suggestions on how to convert/integrate an r.lake output (the blue color
> > > map is very nice) with a DEM "elevation" colormap?
> >
> > I'm not entirely sure what you're asking. The output from r.lake is a
> > raster map, so that can be used as input to xganim.
> if xganim only displays/animates a series of rasters, what I am after is
> having underlying data of the DEM with the lake output on top of that (like
> how it can be displayed in the "map display" - DEM background with lake
> output on top of that).
> Basically I need the DEM (elevation colormap) with the lake on top of that
> animated to show how the containment area fills with water, rather than just
> an animation of the water building up.

Merge each lake map with the DEM using r.patch. Provided that the maps
use distinct categories, the colours should be set up correctly.

Glynn Clements <glynn at gclements.plus.com>

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