after4D before4D compareDoubles contain4D distance_tbox_nodebox get_quadrant4D left4D overAfter4D overBefore4D overlap4D overLeft4D overRight4D right4D SortedTbox Tbox_kdtree_choose Tbox_kdtree_inner_consistent Tbox_kdtree_picksplit tbox_level_cmp Tbox_quadtree_choose Tbox_quadtree_inner_consistent Tbox_quadtree_picksplit Tbox_spgist_config tbox_spgist_inner_consistent Tbox_spgist_leaf_consistent tbox_tmax_cmp tbox_tmin_cmp tbox_xmax_cmp tbox_xmin_cmp tboxnode_copy tboxnode_init tboxnode_kdtree_next tboxnode_quadtree_next Tnumber_spgist_compress tnumber_spgist_get_tbox

get_quadrant4D() static uint8 get_quadrant4D ( const TBox *  centroid, const TBox *  inBox  ) static Calculate the quadrant. The quadrant is 8 bit unsigned integer with 4 least bits in use. This function accepts BOXes as input. All 4 bits are set by comparing a corner of the box. This makes 16 quadrants in total.