Hi! I apologize but I have not understood well.I have need to draw the ground that is in the file terrain.jpg without the plan that is visualized around.
I don't understand as I must use the NoDataValue.
Besides I also have problems to color the terrain. My objective is to draw a terrain with a casting of washes.Can you recommend me a book where to find a good documentation for my specific problem?
Thanks Aurora Restivo. Robert Osfield ha scritto:
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
<<inline: terrain.JPG>>
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 [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
