-- -- GEOMETRY -- -- Back off displayed precision a little bit to reduce platform-to-platform -- variation in results. SET extra_float_digits TO -3; -- -- Points -- SELECT '' AS four, center(f1) AS center FROM BOX_TBL; SELECT '' AS four, (@@ f1) AS center FROM BOX_TBL; SELECT '' AS six, point(f1) AS center FROM CIRCLE_TBL; SELECT '' AS six, (@@ f1) AS center FROM CIRCLE_TBL; SELECT '' AS two, (@@ f1) AS center FROM POLYGON_TBL WHERE (# f1) > 2; -- "is horizontal" function SELECT '' AS two, p1.f1 FROM POINT_TBL p1 WHERE ishorizontal(p1.f1, point '(0,0)'); -- "is horizontal" operator SELECT '' AS two, p1.f1 FROM POINT_TBL p1 WHERE p1.f1 ?- point '(0,0)'; -- "is vertical" function SELECT '' AS one, p1.f1 FROM POINT_TBL p1 WHERE isvertical(p1.f1, point '(5.1,34.5)'); -- "is vertical" operator SELECT '' AS one, p1.f1 FROM POINT_TBL p1 WHERE p1.f1 ?| point '(5.1,34.5)'; -- Slope SELECT p1.f1, p2.f1, slope(p1.f1, p2.f1) FROM POINT_TBL p1, POINT_TBL p2; -- Add point SELECT p1.f1, p2.f1, p1.f1 + p2.f1 FROM POINT_TBL p1, POINT_TBL p2; -- Subtract point SELECT p1.f1, p2.f1, p1.f1 - p2.f1 FROM POINT_TBL p1, POINT_TBL p2; -- Multiply with point SELECT p1.f1, p2.f1, p1.f1 * p2.f1 FROM POINT_TBL p1, POINT_TBL p2 WHERE p1.f1[0] BETWEEN 1 AND 1000; -- Underflow error SELECT p1.f1, p2.f1, p1.f1 * p2.f1 FROM POINT_TBL p1, POINT_TBL p2 WHERE p1.f1[0] < 1; -- Divide by point SELECT p1.f1, p2.f1, p1.f1 / p2.f1 FROM POINT_TBL p1, POINT_TBL p2 WHERE p2.f1[0] BETWEEN 1 AND 1000; -- Overflow error SELECT p1.f1, p2.f1, p1.f1 / p2.f1 FROM POINT_TBL p1, POINT_TBL p2 WHERE p2.f1[0] > 1000; -- Division by 0 error SELECT p1.f1, p2.f1, p1.f1 / p2.f1 FROM POINT_TBL p1, POINT_TBL p2 WHERE p2.f1 ~= '(0,0)'::point; -- Distance to line SELECT p.f1, l.s, p.f1 <-> l.s AS dist_pl, l.s <-> p.f1 AS dist_lp FROM POINT_TBL p, LINE_TBL l; -- Distance to line segment SELECT p.f1, l.s, p.f1 <-> l.s AS dist_ps, l.s <-> p.f1 AS dist_sp FROM POINT_TBL p, LSEG_TBL l; -- Distance to box SELECT p.f1, b.f1, p.f1 <-> b.f1 AS dist_pb, b.f1 <-> p.f1 AS dist_bp FROM POINT_TBL p, BOX_TBL b; -- Distance to path SELECT p.f1, p1.f1, p.f1 <-> p1.f1 AS dist_ppath, p1.f1 <-> p.f1 AS dist_pathp FROM POINT_TBL p, PATH_TBL p1; -- Distance to polygon SELECT p.f1, p1.f1, p.f1 <-> p1.f1 AS dist_ppoly, p1.f1 <-> p.f1 AS dist_polyp FROM POINT_TBL p, POLYGON_TBL p1; -- Closest point to line SELECT p.f1, l.s, p.f1 ## l.s FROM POINT_TBL p, LINE_TBL l; -- Closest point to line segment SELECT p.f1, l.s, p.f1 ## l.s FROM POINT_TBL p, LSEG_TBL l; -- Closest point to box SELECT p.f1, b.f1, p.f1 ## b.f1 FROM POINT_TBL p, BOX_TBL b; -- On line SELECT p.f1, l.s FROM POINT_TBL p, LINE_TBL l WHERE p.f1 <@ l.s; -- On line segment SELECT p.f1, l.s FROM POINT_TBL p, LSEG_TBL l WHERE p.f1 <@ l.s; -- On path SELECT p.f1, p1.f1 FROM POINT_TBL p, PATH_TBL p1 WHERE p.f1 <@ p1.f1; -- -- Lines -- -- Vertical SELECT s FROM LINE_TBL WHERE ?| s; -- Horizontal SELECT s FROM LINE_TBL WHERE ?- s; -- Same as line SELECT l1.s, l2.s FROM LINE_TBL l1, LINE_TBL l2 WHERE l1.s = l2.s; -- Parallel to line SELECT l1.s, l2.s FROM LINE_TBL l1, LINE_TBL l2 WHERE l1.s ?|| l2.s; -- Perpendicular to line SELECT l1.s, l2.s FROM LINE_TBL l1, LINE_TBL l2 WHERE l1.s ?-| l2.s; -- Distance to line SELECT l1.s, l2.s, l1.s <-> l2.s FROM LINE_TBL l1, LINE_TBL l2; -- Distance to box SELECT l.s, b.f1, l.s <-> b.f1 FROM LINE_TBL l, BOX_TBL b; SELECT l.s, b.f1, b.f1 <-> l.s FROM LINE_TBL l, BOX_TBL b; -- Intersect with line SELECT l1.s, l2.s FROM LINE_TBL l1, LINE_TBL l2 WHERE l1.s ?# l2.s; -- Intersect with box SELECT l.s, b.f1 FROM LINE_TBL l, BOX_TBL b WHERE l.s ?# b.f1; -- Intersection point with line SELECT l1.s, l2.s, l1.s # l2.s FROM LINE_TBL l1, LINE_TBL l2; -- Closest point to line segment SELECT l.s, l1.s, l.s ## l1.s FROM LINE_TBL l, LSEG_TBL l1; -- Closest point to box SELECT l.s, b.f1, l.s ## b.f1 FROM LINE_TBL l, BOX_TBL b; -- -- Line segments -- -- intersection SELECT '' AS count, p.f1, l.s, l.s # p.f1 AS intersection FROM LSEG_TBL l, POINT_TBL p; -- Length SELECT s, @-@ s FROM LSEG_TBL; -- Vertical SELECT s FROM LSEG_TBL WHERE ?| s; -- Horizontal SELECT s FROM LSEG_TBL WHERE ?- s; -- Center SELECT s, @@ s FROM LSEG_TBL; -- To point SELECT s, s::point FROM LSEG_TBL; -- Has points less than line segment SELECT l1.s, l2.s FROM LSEG_TBL l1, LSEG_TBL l2 WHERE l1.s < l2.s; -- Has points less than or equal to line segment SELECT l1.s, l2.s FROM LSEG_TBL l1, LSEG_TBL l2 WHERE l1.s <= l2.s; -- Has points equal to line segment SELECT l1.s, l2.s FROM LSEG_TBL l1, LSEG_TBL l2 WHERE l1.s = l2.s; -- Has points greater than or equal to line segment SELECT l1.s, l2.s FROM LSEG_TBL l1, LSEG_TBL l2 WHERE l1.s >= l2.s; -- Has points greater than line segment SELECT l1.s, l2.s FROM LSEG_TBL l1, LSEG_TBL l2 WHERE l1.s > l2.s; -- Has points not equal to line segment SELECT l1.s, l2.s FROM LSEG_TBL l1, LSEG_TBL l2 WHERE l1.s != l2.s; -- Parallel with line segment SELECT l1.s, l2.s FROM LSEG_TBL l1, LSEG_TBL l2 WHERE l1.s ?|| l2.s; -- Perpendicular with line segment SELECT l1.s, l2.s FROM LSEG_TBL l1, LSEG_TBL l2 WHERE l1.s ?-| l2.s; -- Distance to line SELECT l.s, l1.s, l.s <-> l1.s AS dist_sl, l1.s <-> l.s AS dist_ls FROM LSEG_TBL l, LINE_TBL l1; -- Distance to line segment SELECT l1.s, l2.s, l1.s <-> l2.s FROM LSEG_TBL l1, LSEG_TBL l2; -- Distance to box SELECT l.s, b.f1, l.s <-> b.f1 AS dist_sb, b.f1 <-> l.s AS dist_bs FROM LSEG_TBL l, BOX_TBL b; -- Intersect with line segment SELECT l.s, l1.s FROM LSEG_TBL l, LINE_TBL l1 WHERE l.s ?# l1.s; -- Intersect with box SELECT l.s, b.f1 FROM LSEG_TBL l, BOX_TBL b WHERE l.s ?# b.f1; -- Intersection point with line segment SELECT l1.s, l2.s, l1.s # l2.s FROM LSEG_TBL l1, LSEG_TBL l2; -- Closest point to line SELECT l.s, l1.s, l.s ## l1.s FROM LSEG_TBL l, LINE_TBL l1; -- Closest point to line segment SELECT l1.s, l2.s, l1.s ## l2.s FROM LSEG_TBL l1, LSEG_TBL l2; -- Closest point to box SELECT l.s, b.f1, l.s ## b.f1 FROM LSEG_TBL l, BOX_TBL b; -- On line SELECT l.s, l1.s FROM LSEG_TBL l, LINE_TBL l1 WHERE l.s <@ l1.s; -- On box SELECT l.s, b.f1 FROM LSEG_TBL l, BOX_TBL b WHERE l.s <@ b.f1; -- -- Boxes -- SELECT '' as six, box(f1) AS box FROM CIRCLE_TBL; -- translation SELECT '' AS twentyfour, b.f1 + p.f1 AS translation FROM BOX_TBL b, POINT_TBL p; SELECT '' AS twentyfour, b.f1 - p.f1 AS translation FROM BOX_TBL b, POINT_TBL p; -- Multiply with point SELECT b.f1, p.f1, b.f1 * p.f1 FROM BOX_TBL b, POINT_TBL p WHERE p.f1[0] BETWEEN 1 AND 1000; -- Overflow error SELECT b.f1, p.f1, b.f1 * p.f1 FROM BOX_TBL b, POINT_TBL p WHERE p.f1[0] > 1000; -- Divide by point SELECT b.f1, p.f1, b.f1 / p.f1 FROM BOX_TBL b, POINT_TBL p WHERE p.f1[0] BETWEEN 1 AND 1000; -- To box SELECT f1::box FROM POINT_TBL; SELECT bound_box(a.f1, b.f1) FROM BOX_TBL a, BOX_TBL b; -- Below box SELECT b1.f1, b2.f1, b1.f1 <^ b2.f1 FROM BOX_TBL b1, BOX_TBL b2; -- Above box SELECT b1.f1, b2.f1, b1.f1 >^ b2.f1 FROM BOX_TBL b1, BOX_TBL b2; -- Intersection point with box SELECT b1.f1, b2.f1, b1.f1 # b2.f1 FROM BOX_TBL b1, BOX_TBL b2; -- Diagonal SELECT f1, diagonal(f1) FROM BOX_TBL; -- Distance to box SELECT b1.f1, b2.f1, b1.f1 <-> b2.f1 FROM BOX_TBL b1, BOX_TBL b2; -- -- Paths -- -- Points SELECT f1, npoints(f1) FROM PATH_TBL; -- Area SELECT f1, area(f1) FROM PATH_TBL; -- Length SELECT f1, @-@ f1 FROM PATH_TBL; -- Center SELECT f1, @@ f1 FROM PATH_TBL; -- To polygon SELECT f1, f1::polygon FROM PATH_TBL WHERE isclosed(f1); -- Open path cannot be converted to polygon error SELECT f1, f1::polygon FROM PATH_TBL WHERE isopen(f1); -- Has points less than path SELECT p1.f1, p2.f1 FROM PATH_TBL p1, PATH_TBL p2 WHERE p1.f1 < p2.f1; -- Has points less than or equal to path SELECT p1.f1, p2.f1 FROM PATH_TBL p1, PATH_TBL p2 WHERE p1.f1 <= p2.f1; -- Has points equal to path SELECT p1.f1, p2.f1 FROM PATH_TBL p1, PATH_TBL p2 WHERE p1.f1 = p2.f1; -- Has points greater than or equal to path SELECT p1.f1, p2.f1 FROM PATH_TBL p1, PATH_TBL p2 WHERE p1.f1 >= p2.f1; -- Has points greater than path SELECT p1.f1, p2.f1 FROM PATH_TBL p1, PATH_TBL p2 WHERE p1.f1 > p2.f1; -- Add path SELECT p1.f1, p2.f1, p1.f1 + p2.f1 FROM PATH_TBL p1, PATH_TBL p2; -- Add point SELECT p.f1, p1.f1, p.f1 + p1.f1 FROM PATH_TBL p, POINT_TBL p1; -- Subtract point SELECT p.f1, p1.f1, p.f1 - p1.f1 FROM PATH_TBL p, POINT_TBL p1; -- Multiply with point SELECT p.f1, p1.f1, p.f1 * p1.f1 FROM PATH_TBL p, POINT_TBL p1; -- Divide by point SELECT p.f1, p1.f1, p.f1 / p1.f1 FROM PATH_TBL p, POINT_TBL p1 WHERE p1.f1[0] BETWEEN 1 AND 1000; -- Division by 0 error SELECT p.f1, p1.f1, p.f1 / p1.f1 FROM PATH_TBL p, POINT_TBL p1 WHERE p1.f1 ~= '(0,0)'::point; -- Distance to path SELECT p1.f1, p2.f1, p1.f1 <-> p2.f1 FROM PATH_TBL p1, PATH_TBL p2; -- -- Polygons -- -- containment SELECT '' AS twentyfour, p.f1, poly.f1, poly.f1 @> p.f1 AS contains FROM POLYGON_TBL poly, POINT_TBL p; SELECT '' AS twentyfour, p.f1, poly.f1, p.f1 <@ poly.f1 AS contained FROM POLYGON_TBL poly, POINT_TBL p; SELECT '' AS four, npoints(f1) AS npoints, f1 AS polygon FROM POLYGON_TBL; SELECT '' AS four, polygon(f1) FROM BOX_TBL; SELECT '' AS four, polygon(f1) FROM PATH_TBL WHERE isclosed(f1); SELECT '' AS four, f1 AS open_path, polygon( pclose(f1)) AS polygon FROM PATH_TBL WHERE isopen(f1); -- To box SELECT f1, f1::box FROM POLYGON_TBL; -- To path SELECT f1, f1::path FROM POLYGON_TBL; -- Same as polygon SELECT p1.f1, p2.f1 FROM POLYGON_TBL p1, POLYGON_TBL p2 WHERE p1.f1 ~= p2.f1; -- Contained by polygon SELECT p1.f1, p2.f1 FROM POLYGON_TBL p1, POLYGON_TBL p2 WHERE p1.f1 <@ p2.f1; -- Contains polygon SELECT p1.f1, p2.f1 FROM POLYGON_TBL p1, POLYGON_TBL p2 WHERE p1.f1 @> p2.f1; -- Overlap with polygon SELECT p1.f1, p2.f1 FROM POLYGON_TBL p1, POLYGON_TBL p2 WHERE p1.f1 && p2.f1; -- Left of polygon SELECT p1.f1, p2.f1 FROM POLYGON_TBL p1, POLYGON_TBL p2 WHERE p1.f1 << p2.f1; -- Overlap of left of polygon SELECT p1.f1, p2.f1 FROM POLYGON_TBL p1, POLYGON_TBL p2 WHERE p1.f1 &< p2.f1; -- Right of polygon SELECT p1.f1, p2.f1 FROM POLYGON_TBL p1, POLYGON_TBL p2 WHERE p1.f1 >> p2.f1; -- Overlap of right of polygon SELECT p1.f1, p2.f1 FROM POLYGON_TBL p1, POLYGON_TBL p2 WHERE p1.f1 &> p2.f1; -- Below polygon SELECT p1.f1, p2.f1 FROM POLYGON_TBL p1, POLYGON_TBL p2 WHERE p1.f1 <<| p2.f1; -- Overlap or below polygon SELECT p1.f1, p2.f1 FROM POLYGON_TBL p1, POLYGON_TBL p2 WHERE p1.f1 &<| p2.f1; -- Above polygon SELECT p1.f1, p2.f1 FROM POLYGON_TBL p1, POLYGON_TBL p2 WHERE p1.f1 |>> p2.f1; -- Overlap or above polygon SELECT p1.f1, p2.f1 FROM POLYGON_TBL p1, POLYGON_TBL p2 WHERE p1.f1 |&> p2.f1; -- Distance to polygon SELECT p1.f1, p2.f1, p1.f1 <-> p2.f1 FROM POLYGON_TBL p1, POLYGON_TBL p2; -- -- Circles -- SELECT '' AS six, circle(f1, 50.0) FROM POINT_TBL; SELECT '' AS four, circle(f1) FROM BOX_TBL; SELECT '' AS two, circle(f1) FROM POLYGON_TBL WHERE (# f1) >= 3; SELECT '' AS twentyfour, c1.f1 AS circle, p1.f1 AS point, (p1.f1 <-> c1.f1) AS distance FROM CIRCLE_TBL c1, POINT_TBL p1 WHERE (p1.f1 <-> c1.f1) > 0 ORDER BY distance, area(c1.f1), p1.f1[0]; -- To polygon SELECT f1, f1::polygon FROM CIRCLE_TBL WHERE f1 >= '<(0,0),1>'; -- To polygon with less points SELECT f1, polygon(8, f1) FROM CIRCLE_TBL WHERE f1 >= '<(0,0),1>'; -- Too less points error SELECT f1, polygon(1, f1) FROM CIRCLE_TBL WHERE f1 >= '<(0,0),1>'; -- Zero radius error SELECT f1, polygon(10, f1) FROM CIRCLE_TBL WHERE f1 < '<(0,0),1>'; -- Same as circle SELECT c1.f1, c2.f1 FROM CIRCLE_TBL c1, CIRCLE_TBL c2 WHERE c1.f1 ~= c2.f1; -- Overlap with circle SELECT c1.f1, c2.f1 FROM CIRCLE_TBL c1, CIRCLE_TBL c2 WHERE c1.f1 && c2.f1; -- Overlap or left of circle SELECT c1.f1, c2.f1 FROM CIRCLE_TBL c1, CIRCLE_TBL c2 WHERE c1.f1 &< c2.f1; -- Left of circle SELECT c1.f1, c2.f1 FROM CIRCLE_TBL c1, CIRCLE_TBL c2 WHERE c1.f1 << c2.f1; -- Right of circle SELECT c1.f1, c2.f1 FROM CIRCLE_TBL c1, CIRCLE_TBL c2 WHERE c1.f1 >> c2.f1; -- Overlap or right of circle SELECT c1.f1, c2.f1 FROM CIRCLE_TBL c1, CIRCLE_TBL c2 WHERE c1.f1 &> c2.f1; -- Contained by circle SELECT c1.f1, c2.f1 FROM CIRCLE_TBL c1, CIRCLE_TBL c2 WHERE c1.f1 <@ c2.f1; -- Contain by circle SELECT c1.f1, c2.f1 FROM CIRCLE_TBL c1, CIRCLE_TBL c2 WHERE c1.f1 @> c2.f1; -- Below circle SELECT c1.f1, c2.f1 FROM CIRCLE_TBL c1, CIRCLE_TBL c2 WHERE c1.f1 <<| c2.f1; -- Above circle SELECT c1.f1, c2.f1 FROM CIRCLE_TBL c1, CIRCLE_TBL c2 WHERE c1.f1 |>> c2.f1; -- Overlap or below circle SELECT c1.f1, c2.f1 FROM CIRCLE_TBL c1, CIRCLE_TBL c2 WHERE c1.f1 &<| c2.f1; -- Overlap or above circle SELECT c1.f1, c2.f1 FROM CIRCLE_TBL c1, CIRCLE_TBL c2 WHERE c1.f1 |&> c2.f1; -- Area equal with circle SELECT c1.f1, c2.f1 FROM CIRCLE_TBL c1, CIRCLE_TBL c2 WHERE c1.f1 = c2.f1; -- Area not equal with circle SELECT c1.f1, c2.f1 FROM CIRCLE_TBL c1, CIRCLE_TBL c2 WHERE c1.f1 != c2.f1; -- Area less than circle SELECT c1.f1, c2.f1 FROM CIRCLE_TBL c1, CIRCLE_TBL c2 WHERE c1.f1 < c2.f1; -- Area greater than circle SELECT c1.f1, c2.f1 FROM CIRCLE_TBL c1, CIRCLE_TBL c2 WHERE c1.f1 > c2.f1; -- Area less than or equal circle SELECT c1.f1, c2.f1 FROM CIRCLE_TBL c1, CIRCLE_TBL c2 WHERE c1.f1 <= c2.f1; -- Area greater than or equal circle SELECT c1.f1, c2.f1 FROM CIRCLE_TBL c1, CIRCLE_TBL c2 WHERE c1.f1 >= c2.f1; -- Area less than circle SELECT c1.f1, c2.f1 FROM CIRCLE_TBL c1, CIRCLE_TBL c2 WHERE c1.f1 < c2.f1; -- Area greater than circle SELECT c1.f1, c2.f1 FROM CIRCLE_TBL c1, CIRCLE_TBL c2 WHERE c1.f1 < c2.f1; -- Add point SELECT c.f1, p.f1, c.f1 + p.f1 FROM CIRCLE_TBL c, POINT_TBL p; -- Subtract point SELECT c.f1, p.f1, c.f1 - p.f1 FROM CIRCLE_TBL c, POINT_TBL p; -- Multiply with point SELECT c.f1, p.f1, c.f1 * p.f1 FROM CIRCLE_TBL c, POINT_TBL p; -- Divide by point SELECT c.f1, p.f1, c.f1 / p.f1 FROM CIRCLE_TBL c, POINT_TBL p WHERE p.f1[0] BETWEEN 1 AND 1000; -- Overflow error SELECT c.f1, p.f1, c.f1 / p.f1 FROM CIRCLE_TBL c, POINT_TBL p WHERE p.f1[0] > 1000; -- Division by 0 error SELECT c.f1, p.f1, c.f1 / p.f1 FROM CIRCLE_TBL c, POINT_TBL p WHERE p.f1 ~= '(0,0)'::point; -- Distance to polygon SELECT c.f1, p.f1, c.f1 <-> p.f1 FROM CIRCLE_TBL c, POLYGON_TBL p;