removes all points from the quadtree concode_field_sep List<PointQuadTree<T>> mChildren concode_elem_sep int MAX_ELEMENTS concode_elem_sep int MAX_DEPTH concode_elem_sep Bounds mBounds concode_elem_sep int mDepth concode_elem_sep List<T> mItems concode_field_sep void add concode_elem_sep Point getPoint concode_elem_sep Collection<T> search concode_elem_sep void search concode_elem_sep void split concode_elem_sep void insert concode_elem_sep boolean remove concode_elem_sep boolean remove
void function ( ) { mChildren = null ; if ( mItems != null ) { mItems . clear ( ) ; } }