after4D before4D compareFloat8 compareInt4 compareTimestampTz contain4D distance_tbox_nodebox getQuadrant4D 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

getQuadrant4D() static uint8 getQuadrant4D ( 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 temporal boxes as input. All 4 bits are set by comparing a corner of the box. This makes 16 quadrants in total. Continuing with the example at the top of this file | | | | | -----+----- | | inbox | | -------------+------------- | centroid | | | | where centroid and inbox are as follows centroid = TBOXFLOAT XT([3, 5],[2001-01-03, 2001-01-05]) inbox = TBOXFLOAT XT([7, 9],[2001-01-07, 2001-01-09]) Then quadrant |= 0x8 since 7 > 3 quadrant |= 0x4 since 9 > 5 quadrant |= 0x2 since 2001-01-07 > 2001-01-03 quadrant |= 0x1 since 2001-01-09 > 2001-01-05