getNode method
Returns the subquad containing the envelope searchEnv. Creates the subquad if it does not already exist.
@return the subquad containing the search envelope
Implementation
NodeNode getNode(Envelope searchEnv) {
int subnodeIndex = NodeBase.getSubnodeIndex(searchEnv, centrex, centrey);
// if subquadIndex is -1 searchEnv is not contained in a subquad
if (subnodeIndex != -1) {
// create the quad if it does not exist
NodeNode? node = getSubnode(subnodeIndex);
// recursively search the found/created quad
return node!.getNode(searchEnv);
} else {
return this;
}
}