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; }