FGFS-4.1/OpenSceneGraph
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Changed the optimization of flat tiles so that it creates a flat 8x8 height

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field rather than a flat 2x2 height field.  This allows geocentric warping
of the tiles without obvious flat regions.
This commit is contained in:
Robert Osfield 2004-04-12 13:36:08 +00:00
parent 97ef4985f7
commit ceec7ae86d
1 changed files with 15 additions and 8 deletions
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25
src/osgTerrain/DataSet.cpp
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@ -1757,15 +1757,21 @@ void DataSet::DestinationTile::optimizeResolution()
{
std::cout<<"******* We have a flat tile ******* "<<std::endl;
hf->allocate(2,2);
hf->setOrigin(osg::Vec3(_extents.xMin(),_extents.yMin(),0.0f));
hf->setXInterval(_extents.xMax()-_extents.xMin());
hf->setYInterval(_extents.yMax()-_extents.yMin());
hf->setHeight(0,0,minHeight);
hf->setHeight(1,0,minHeight);
hf->setHeight(1,1,minHeight);
hf->setHeight(0,1,minHeight);
unsigned int numColumns = 8;
unsigned int numRows = 8;
hf->allocate(numColumns,numRows);
hf->setOrigin(osg::Vec3(_extents.xMin(),_extents.yMin(),0.0f));
hf->setXInterval((_extents.xMax()-_extents.xMin())/(float)(numColumns-1));
hf->setYInterval((_extents.yMax()-_extents.yMin())/(float)(numRows-1));
for(unsigned int r=0;r<numRows;++r)
{
for(unsigned int c=0;c<numColumns;++c)
{
hf->setHeight(c,r,minHeight);
}
}
}
}
}
@ -2178,9 +2184,10 @@ osg::Node* DataSet::DestinationTile::createPolygonal()
geometry->setColorBinding(osg::Geometry::BIND_OVERALL);
}
#if 0
osgUtil::Simplifier simplifier;
simplifier.simplify(*geometry,0.5f); // this will replace the normal vector with a new one
#endif
osg::Geode* geode = new osg::Geode;
geode->addDrawable(geometry);