bool
TileNode::shouldSubDivide(osgUtil::CullVisitor* cv, const SelectionInfo& selectionInfo)
{
unsigned currLOD = _key.getLOD();
if (currLOD < selectionInfo.numLods() && currLOD != selectionInfo.numLods()-1)
{
return _surface->anyChildBoxIntersectsSphere(
cv->getViewPointLocal(),
(float)selectionInfo.visParameters(currLOD+1)._visibilityRange2,
cv->getLODScale());
}
return false;
}
bool
TileNode::shouldSubDivide(osg::NodeVisitor& nv, const SelectionInfo& selectionInfo, float lodScale)
{
unsigned currLOD = _key.getLOD();
if ( currLOD < selectionInfo.numLods()
&& currLOD != selectionInfo.numLods()-1)
{
osg::Vec3 cameraPos = nv.getViewPoint();
float radius2 = (float)selectionInfo.visParameters(currLOD+1)._visibilityRange2;
return _surface->anyChildBoxIntersectsSphere(cameraPos, radius2, lodScale);
}
return false;
}
bool
TileNode::shouldSubDivide(osg::NodeVisitor& nv, const SelectionInfo& selectionInfo, float zoomFactor)
{
unsigned currLOD = _key.getLOD();
if ( currLOD < selectionInfo.numLods()
&& currLOD != selectionInfo.numLods()-1)
{
osg::Vec3 cameraPos = nv.getViewPoint();
#if OSGEARTH_REX_TILE_NODE_DEBUG_TRAVERSAL
OE_INFO << LC <<cameraPos.x()<<" "<<cameraPos.y()<<" "<<cameraPos.z()<<" "<<std::endl;
OE_INFO << LC <<"LOD Scale: "<<fZoomFactor<<std::endl;
#endif
float radius = (float)selectionInfo.visParameters(currLOD+1)._fVisibility;
bool anyChildVisible = _surface->anyChildBoxIntersectsSphere(cameraPos, radius*radius, zoomFactor);
return anyChildVisible;
}
return false;
}