[GRASS-user] NVIZ - Visualization of buildings

[incanus]

Forget it! and thanx again Markus,
finally, I remember that in my DEM there was 0-values and null-values. 
I replaced the null's by 0's and it works perfect!


incanus wrote:
> 
> Thanx to Markus I get this:
> 
>  http://n2.nabble.com/file/n3943983/trozoNVIZ.png 
> 
> As everyone can see, the "walls" are transparent. I've tried to resample
> the color file to the resolution of the elevation file, and the result is
> the same. 
> I would appreciate any comment os suggest about this, if someone had seen
> something similar.
> 
> thanx,
> Andres
> 
> 
> Markus Neteler wrote:
>> 
>> On Sun, Nov 1, 2009 at 5:46 PM, Markus Neteler <neteler at osgeo.org> wrote:
>>> On Fri, Oct 30, 2009 at 10:24 AM, incanus <andresfr at unizar.es> wrote:
>>>>
>>>> Hi everyone,
>>>> I'm trying to visualize a DEM that I've generated of the buildings of a
>>>> city. In each cell I have the meters of elevation. When I try to see it
>>>> with
>>>> NVIZ I found that it makes something like interpolation, smoothing the
>>>> corners like it was a DEM of terrain instead of "hard edges" (i don't
>>>> know
>>>> how to say it).
>>>
>>> For speed reasons, NVIZ is per default (typically) starting with a
>>> reduced  visualization.
>>>
>>> To increase that:
>>> Menu: Visualize -> Raster Surface -> Resolution | fine: XXX
>>>
>>> The smaller XXX, the higher the shown resolution.
>>> When XXX=1, then the full resolution as defined by g.region is
>>> used.
>> 
>> 
>> Forgot to mention: some examples here (made without much efforts):
>> 
>> # only Lidar-based DSM + orthophoto:
>> http://gis.fem-environment.eu/
>> 
>> # Foto versus Lidar-based DSM + orthophoto (nviz)
>> http://gis.fem-environment.eu/gis-analysis/
>> 
>> cheers
>> Markus
>> _______________________________________________
>> grass-user mailing list
>> grass-user at lists.osgeo.org
>> http://lists.osgeo.org/mailman/listinfo/grass-user
>> 
>> 
> 
> 

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