Hi Aurora, I think what you are looking for is the osgTerrain::ValidDataOperator that you can attach to your elevation layer via Layer::setValidDataOperator(operator);
In include/osgTerrain/ValidDataOperator you'll find the NoDataValue subclass which is probably what you want to use in your case. Robert. On Feb 19, 2008 12:33 PM, aurora restivo <[EMAIL PROTECTED]> wrote: > > Hi! > > the image jpg in enclosure, is the result of the terrain that I have > drawn beginning from the matrix of the altitudes. > I would want to know if a way exists for not visualizing the quotas > equal to 0. > > the source code is found in the file morfologia.txt > > Thanks in advance. > Aurora Restivo > > > > > Jean-Christophe Lombardo ha scritto: > > Hi, > > > > You should have look to the osgshape example source code > > (http://www.openscenegraph.org/projects/osg/browser/OpenSceneGraph/trunk/examples/osgshape/osgshape.cpp) > > > > jcl > > > > > > > > > > > > > > ************************************************************************************ > > This footnote confirms that this email message has been scanned by > > PineApp Mail-SeCure for the presence of malicious code, vandals & computer > > viruses. > > ************************************************************************************ > > > > > > > > _______________________________________________ > > osg-users mailing list > > osg-users@lists.openscenegraph.org > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > > > > > > > > > > int** m= g->leggiFile("morf0.txt"); > > > osg::HeightField* hF = new osg::HeightField(); > hF->allocate(296,410); > > for(int i=0; i< 410; i++) > { > for(int j=0; j<296 ;j++) > { > if(m[i][j]!=0) > hF->setHeight(j,i, m[i][j]); > else > hF->setHeight(j,i, m[i][j]); > } > } > > hF->setXInterval(41.0); > hF->setYInterval(29.6); > > osg::Quat* quat= new osg::Quat(0,0,180,45); > hF->setRotation(*quat); > > > osgTerrain::Terrain* terrainNode= new osgTerrain::Terrain(); > osgTerrain::HeightFieldLayer* hFLayer= new > osgTerrain::HeightFieldLayer(); > > hFLayer->setHeightField(hF); > terrainNode->setElevationLayer(hFLayer); > > > > osg::Geode* geode= new osg::Geode(); > osg::ShapeDrawable* draw= new osg::ShapeDrawable(hF); > geode->addDrawable(draw); > > > _______________________________________________ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
