[GRASSLIST:5140] Re: [NVIZ] nviz and topographic map

Johannes Bühler johannesbuehler at oderbruecke.de
Tue Dec 3 16:59:04 EST 2002


> Have you set the grid resolution to 1 on the surface panel?
right, that was the problem. 

> This will display the image on the DEM at its true resolution but this
> demands quite a bit of memory.
thats the problem why i did not tried it. it takes al long time to render
the image. but now it is working. And my computer is working hard, even
though the amount of memory should be enough (1 GB and Athlon XP 2000+). It
is perhaps because of the underlying hillshade layer and the transparency.
Are there some other more suitable open source programs for creating 3D

Greetings Johannes

> Greetings Wolfgang
> On Tue, 2002-12-03 at 01:33, Johannes Bühler wrote:
> > hi,
> > i intent to visualize a topographic map on a elevation modell in nviz
> > using grass 5.0.0. after importing and georefernzing my tif file (8
> > bit)(= topographical map) i opened the nviz tool. Showing the elevation
> > model is great but when i changed to parameter color to the topographic
> > map i only get a very bad image (see attachment). I guess it might be a
> > resolution problem, but i dont know how to solve it. i already changed
> > the resolution of the current region and both raster files using
> > g.region and r.resample but nothing changed. 
> > Any hints to solve this problem?
> > 
> > Thanks 
> > Johannes Buehler

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