OSG::Action::ResultE changeGeo(OSG::Node *node)
{
OSG::Geometry *geo = dynamic_cast<OSG::Geometry *>(node->getCore());
if(geo == NULL)
return OSG::Action::Continue;
OSG::GeoColor3fPropertyRefPtr col = dynamic_cast<OSG::GeoColor3fProperty *>(geo->getColors());
if(col == NULL)
{
col = OSG::GeoColor3fProperty::create();
col->resize(geo->getPositions()->getSize());
// Change the geometry to use the new colors
geo->setColors(col);
// If multi-indexed, make the colors use the same index as
// the geometry
if(geo->getIndex(OSG::Geometry::PositionsIndex) != NULL)
{
geo->setIndex(geo->getIndex(OSG::Geometry::PositionsIndex),
OSG::Geometry::ColorsIndex );
}
}
OSG::Real32 size = col->getSize();
for(OSG::UInt32 i = 0; i < size; ++i)
{
OSG::Color3f c;
c[0] = 0.0f;
c[1] = static_cast<OSG::Real32>(i) / size;
c[2] = 0.0f;
col->setValue(c, i);
}
return OSG::Action::Continue;
}
void prepareSceneGraph(OSG::Node * const node)
{
if(!prepared)
{
polygonChunk = OSG::PolygonChunk::create();
prepared = true;
}
OSG::NodeCore *core =node->getCore();
if(core != NULL)
{
OSG::Geometry *geo = dynamic_cast<OSG::Geometry *>(core);
if(geo != NULL)
{
OSG::Material *mat = geo->getMaterial();
if(mat != NULL)
{
OSG::ChunkMaterial *cmat =
dynamic_cast<OSG::ChunkMaterial *>(mat);
if(cmat->find(OSG::PolygonChunk::getClassType()) == NULL)
{
cmat->addChunk(polygonChunk);
}
}
// get num positions
OSG::GeoVectorProperty *positionsPtr=geo->getPositions();
if(positionsPtr != NULL)
sum_positions += positionsPtr->size32();
// get num triangles
OSG::UInt32 triangle=0;
OSG::UInt32 line=0;
OSG::UInt32 point=0;
calcPrimitiveCount(geo,triangle,line,point);
sum_triangles += triangle;
// sum of geometry nodes
++sum_geometries;
}
else
{
OSG::MaterialGroup *matGrp =
dynamic_cast<OSG::MaterialGroup *>(core);
if(matGrp != NULL)
{
OSG::Material *mat = matGrp->getMaterial();
if(mat != NULL)
{
OSG::ChunkMaterial *cmat =
dynamic_cast<OSG::ChunkMaterial *>(mat);
if(cmat->find(OSG::PolygonChunk::getClassType()) == NULL)
{
cmat->addChunk(polygonChunk);
}
}
}
else
{
OSG::ProxyGroup *proxy = dynamic_cast<OSG::ProxyGroup *>(core);
if(proxy != NULL)
{
sum_triangles += proxy->getTriangles();
sum_positions += proxy->getPositions();
sum_geometries += proxy->getGeometries();
}
}
}
}
for(OSG::MFUnrecChildNodePtr::const_iterator nI=node->getMFChildren()->begin();
nI != node->getMFChildren()->end();
++nI)
{
prepareSceneGraph(*nI);
}
}