add_answer bbox_contains_span bbox_contains_stbox bbox_contains_tbox bbox_expand_span bbox_expand_stbox bbox_expand_tbox bbox_overlaps_span bbox_overlaps_stbox bbox_overlaps_tbox box_area box_largest_axis get_axis_length get_axis_span get_axis_stbox get_axis_tbox is_power_of_two node_box_calculate node_choose node_choose_least_enlargement node_free node_insert node_make node_move_box_at_index_into node_qsort node_search node_sort_axis node_split node_swap rtree_create rtree_create_bigintspan rtree_create_datespan rtree_create_floatspan rtree_create_intspan rtree_create_stbox rtree_create_tbox rtree_create_tstzspan rtree_free rtree_insert rtree_search unioned_area

unioned_area() static double unioned_area ( const RTree *  rtree, const void *  box1, const void *  box2  ) static Return the length, area, or volume of the union of two bounding boxes. The function first creates a new bounding box that is the union of the two input boxes, then calculates the length, area, or volume of this union box using the given RTree's dimensions Parameters [in] box1,box2 Pointers to the bounding boxes [in] rtree Pointer to the RTree structure, which provides the number of dimensions and the method for the computation