[osg-users] troubles with osgTerrain::NoDataValue

Frauciel Luc L.Frauciel at brgm.fr
Mon Sep 15 01:42:19 PDT 2008

Hi Ilia,

I recently add support for reading and writing osgTerrain::NoDataValue in .ive plugin, but I didn't have the time to add it in .osg.
What is going amiss, is that it is not implemented at all :) but it should be quite staight forward to do it

Be also aware that even if gdal and osgTerrain can handle noda values, VirtualPlanetBuilder is unable to do so (probably because it relies on osg::HeighField in a first step of computation)


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> -----Message d'origine-----
> De : osg-users-bounces at lists.openscenegraph.org 
> [mailto:osg-users-bounces at lists.openscenegraph.org] De la 
> part de Robert Osfield
> Envoyé : lundi 8 septembre 2008 10:57
> À : OpenSceneGraph Users
> Objet : Re: [osg-users] troubles with osgTerrain::NoDataValue
> HI Ilia,
> On Sun, Sep 7, 2008 at 9:11 PM, Korolyov Ilia <ya-breeze at ya.ru> wrote:
> > Hello
> >
> > For Earth 3D model building we using osgTerrain::TerrainTile with 
> > osgTerrain::HeightFieldLayer and osgTerrain::NoDataValue operator.
> > When we show scene immediately - it looks ok.
> >
> > When we saving 3D model into *.osg file, osgTerrain::NoDataValue is 
> > not saved. So, when we load file back, data validation is 
> broken. What 
> > we need to do?
> You need to dig out the sources for osgTerrain .osg to be 
> found in src/osgPLugins/osgTerrain/ and see what is going 
> amiss with the non data value.
> Robert.
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