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--
-- Points
--
SELECT point(f1) FROM CIRCLE_TBL;
SELECT '' AS two, p1.f1
FROM POINT_TBL p1
WHERE ishorizontal(p1.f1, '(0,0)'::point);
SELECT '' AS one, p1.f1
FROM POINT_TBL p1
WHERE isvertical(p1.f1, '(5.1,34.5)'::point);
--
-- Line segments
--
--
-- Lines
--
--
-- Boxes
--
SELECT center(f1) FROM BOX_TBL;
SELECT box(f1) FROM CIRCLE_TBL;
-- translation
SELECT '' AS count, b.f1 + p.f1
FROM BOX_TBL b, POINT_TBL p;
-- scaling and rotation
SELECT '' AS count, b.f1 * p.f1
FROM BOX_TBL b, POINT_TBL p;
--
-- Paths
--
SET geqo TO 'off';
SELECT points(f1) AS npoints, f1 AS path FROM PATH_TBL;
SELECT path(f1) FROM POLYGON_TBL;
-- translation
SELECT '' AS eight, p1.f1 + '(10,10)'::point AS dist_add
FROM PATH_TBL p1;
-- scaling and rotation
SELECT '' AS eight, p1.f1 * '(2,-1)'::point AS dist_mul
FROM PATH_TBL p1;
RESET geqo;
--
-- Polygons
--
SELECT points(f1) AS npoints, f1 AS polygon FROM POLYGON_TBL;
SELECT polygon(f1) FROM BOX_TBL;
SELECT polygon(f1) FROM PATH_TBL WHERE isclosed(f1);
SELECT f1 AS open_path, polygon( pclose(f1)) AS polygon FROM PATH_TBL WHERE isopen(f1);
-- convert circles to polygons using the default number of points
SELECT polygon(f1) FROM CIRCLE_TBL;
-- convert the circle to an 8-point polygon
SELECT polygon(8, f1) FROM CIRCLE_TBL;
--
-- Circles
--
SELECT circle( f1, 50.0) FROM POINT_TBL;
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, circle;
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