for (long id : toDelete) {
nodes.remove(id);
}
BoundingBox bbAllNodes = new BoundingBox();
bbAllNodes.adjust(nodes.values());
bbAllNodes.adjust(pois);
if (boundingBox == null)
boundingBox = bbAllNodes;
else
boundingBox.intersectWith(bbAllNodes);
applyClassifierAndUpdateTree(bbAllNodes);