[osg-users] [Fwd: Re: to draw landscapes beginning from a matrix]

[Mike Weiblen]

The existence of the skirt is controlled by your NODATA value.  You must
set the NODATA value appropriate for your dataset:

hfLayer->setValidDataOperator(new osgTerrain::NoDataValue(
YOUR_NODATA_VALUE ));

Here are various links to review concerning the concept of NODATA:
http://gdal.org/gdal_datamodel.html
http://map.hut.fi/doc/Geo-GDAL/html/create_raster.html
http://www.gdal.org/gdalwarp.html
http://www.csc.noaa.gov/crs/tcm/faq.html
http://cses.washington.edu/cig/maps/dataFormat.shtml

-- mew




> -----Original Message-----
> From: osg-users-bounces at lists.openscenegraph.org [mailto:osg-users-
> bounces at lists.openscenegraph.org] On Behalf Of aurora restivo
> Sent: Wednesday, February 27, 2008 8:30 AM
> To: OpenSceneGraph Users
> Subject: [osg-users] [Fwd: Re: to draw landscapes beginning from a
> matrix]
> 
> please I need urgent an answer! :(
> 
> Aurora
> 
> 
> 
> 
> I need to get the terrain as in the figure that I send you, but
without
> visualizing the skirt.
> 
> Aurora