addAllItemsFromOverlapping method
Implementation
void addAllItemsFromOverlapping(Envelope searchEnv, List resultItems) {
if (!isSearchMatch(searchEnv)) return;
// this node may have items as well as subnodes (since items may not
// be wholely contained in any single subnode
resultItems.addAll(items);
for (int i = 0; i < 4; i++) {
if (subnode[i] != null) {
subnode[i]!.addAllItemsFromOverlapping(searchEnv, resultItems);
}
}
}