geometry_1.out

PostgreSQL 8.1.4的源码 适用于Linux下的开源数据库系统

--
-- 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;
 four | center  
------+---------
      | (1,1)
      | (2,2)
      | (2.5,3)
      | (3,3)
(4 rows)

SELECT '' AS four, (@@ f1) AS center
   FROM BOX_TBL;
 four | center  
------+---------
      | (1,1)
      | (2,2)
      | (2.5,3)
      | (3,3)
(4 rows)

SELECT '' AS six, point(f1) AS center
   FROM CIRCLE_TBL;
 six |  center   
-----+-----------
     | (5,1)
     | (1,2)
     | (1,3)
     | (1,2)
     | (100,200)
     | (100,1)
(6 rows)

SELECT '' AS six, (@@ f1) AS center
   FROM CIRCLE_TBL;
 six |  center   
-----+-----------
     | (5,1)
     | (1,2)
     | (1,3)
     | (1,2)
     | (100,200)
     | (100,1)
(6 rows)

SELECT '' AS two, (@@ f1) AS center
   FROM POLYGON_TBL
   WHERE (# f1) > 2;
 two |            center             
-----+-------------------------------
     | (1.33333333333,1.33333333333)
     | (2.33333333333,1.33333333333)
(2 rows)

-- "is horizontal" function
SELECT '' AS two, p1.f1
   FROM POINT_TBL p1
   WHERE ishorizontal(p1.f1, point '(0,0)');
 two |   f1    
-----+---------
     | (0,0)
     | (-10,0)
(2 rows)

-- "is horizontal" operator
SELECT '' AS two, p1.f1
   FROM POINT_TBL p1
   WHERE p1.f1 ?- point '(0,0)';
 two |   f1    
-----+---------
     | (0,0)
     | (-10,0)
(2 rows)

-- "is vertical" function
SELECT '' AS one, p1.f1
   FROM POINT_TBL p1
   WHERE isvertical(p1.f1, point '(5.1,34.5)');
 one |     f1     
-----+------------
     | (5.1,34.5)
(1 row)

-- "is vertical" operator
SELECT '' AS one, p1.f1
   FROM POINT_TBL p1
   WHERE p1.f1 ?| point '(5.1,34.5)';
 one |     f1     
-----+------------
     | (5.1,34.5)
(1 row)

--
-- Line segments
--
-- intersection
SELECT '' AS count, p.f1, l.s, l.s # p.f1 AS intersection
   FROM LSEG_TBL l, POINT_TBL p;
ERROR:  operator does not exist: lseg # point
HINT:  No operator matches the given name and argument type(s). You may need to add explicit type casts.
-- closest point
SELECT '' AS thirty, p.f1, l.s, p.f1 ## l.s AS closest
   FROM LSEG_TBL l, POINT_TBL p;
 thirty |     f1     |               s               |             closest              
--------+------------+-------------------------------+----------------------------------
        | (0,0)      | [(1,2),(3,4)]                 | (1,2)
        | (0,0)      | [(0,0),(6,6)]                 | (0,0)
        | (0,0)      | [(10,-10),(-3,-4)]            | (-2.0487804878,-4.43902439024)
        | (0,0)      | [(-1000000,200),(300000,-40)] | (0.00284023658959,15.3846148603)
        | (0,0)      | [(11,22),(33,44)]             | (11,22)
        | (-10,0)    | [(1,2),(3,4)]                 | (1,2)
        | (-10,0)    | [(0,0),(6,6)]                 | (0,0)
        | (-10,0)    | [(10,-10),(-3,-4)]            | (-3,-4)
        | (-10,0)    | [(-1000000,200),(300000,-40)] | (-9.99715942258,15.386461014)
        | (-10,0)    | [(11,22),(33,44)]             | (11,22)
        | (-3,4)     | [(1,2),(3,4)]                 | (1,2)
        | (-3,4)     | [(0,0),(6,6)]                 | (0.5,0.5)
        | (-3,4)     | [(10,-10),(-3,-4)]            | (-3,-4)
        | (-3,4)     | [(-1000000,200),(300000,-40)] | (-2.99789812268,15.3851688427)
        | (-3,4)     | [(11,22),(33,44)]             | (11,22)
        | (5.1,34.5) | [(1,2),(3,4)]                 | (3,4)
        | (5.1,34.5) | [(0,0),(6,6)]                 | (6,6)
        | (5.1,34.5) | [(10,-10),(-3,-4)]            | (-3,-4)
        | (5.1,34.5) | [(-1000000,200),(300000,-40)] | (5.09647083221,15.3836744977)
        | (5.1,34.5) | [(11,22),(33,44)]             | (14.3,25.3)
        | (-5,-12)   | [(1,2),(3,4)]                 | (1,2)
        | (-5,-12)   | [(0,0),(6,6)]                 | (0,0)
        | (-5,-12)   | [(10,-10),(-3,-4)]            | (-1.60487804878,-4.64390243902)
        | (-5,-12)   | [(-1000000,200),(300000,-40)] | (-4.99494420846,15.3855375282)
        | (-5,-12)   | [(11,22),(33,44)]             | (11,22)
        | (10,10)    | [(1,2),(3,4)]                 | (3,4)
        | (10,10)    | [(0,0),(6,6)]                 | (6,6)
        | (10,10)    | [(10,-10),(-3,-4)]            | (2.39024390244,-6.48780487805)
        | (10,10)    | [(-1000000,200),(300000,-40)] | (10.000993742,15.3827690473)
        | (10,10)    | [(11,22),(33,44)]             | (11,22)
(30 rows)

--
-- Lines
--
--
-- Boxes
--
SELECT '' as six, box(f1) AS box FROM CIRCLE_TBL;
 six |                              box                               
-----+----------------------------------------------------------------
     | (7.12132034356,3.12132034356),(2.87867965644,-1.12132034356)
     | (71.7106781187,72.7106781187),(-69.7106781187,-68.7106781187)
     | (4.53553390593,6.53553390593),(-2.53553390593,-0.535533905933)
     | (3.12132034356,4.12132034356),(-1.12132034356,-0.12132034356)
     | (107.071067812,207.071067812),(92.9289321881,192.928932188)
     | (181.317279836,82.3172798365),(18.6827201635,-80.3172798365)
(6 rows)

-- translation
SELECT '' AS twentyfour, b.f1 + p.f1 AS translation
   FROM BOX_TBL b, POINT_TBL p;
 twentyfour |       translation       
------------+-------------------------
            | (2,2),(0,0)
            | (3,3),(1,1)
            | (2.5,3.5),(2.5,2.5)
            | (3,3),(3,3)
            | (-8,2),(-10,0)
            | (-7,3),(-9,1)
            | (-7.5,3.5),(-7.5,2.5)
            | (-7,3),(-7,3)
            | (-1,6),(-3,4)
            | (0,7),(-2,5)
            | (-0.5,7.5),(-0.5,6.5)
            | (0,7),(0,7)
            | (7.1,36.5),(5.1,34.5)
            | (8.1,37.5),(6.1,35.5)
            | (7.6,38),(7.6,37)
            | (8.1,37.5),(8.1,37.5)
            | (-3,-10),(-5,-12)
            | (-2,-9),(-4,-11)
            | (-2.5,-8.5),(-2.5,-9.5)
            | (-2,-9),(-2,-9)
            | (12,12),(10,10)
            | (13,13),(11,11)
            | (12.5,13.5),(12.5,12.5)
            | (13,13),(13,13)
(24 rows)

SELECT '' AS twentyfour, b.f1 - p.f1 AS translation
   FROM BOX_TBL b, POINT_TBL p;
 twentyfour |        translation        
------------+---------------------------
            | (2,2),(0,0)
            | (3,3),(1,1)
            | (2.5,3.5),(2.5,2.5)
            | (3,3),(3,3)
            | (12,2),(10,0)
            | (13,3),(11,1)
            | (12.5,3.5),(12.5,2.5)
            | (13,3),(13,3)
            | (5,-2),(3,-4)
            | (6,-1),(4,-3)
            | (5.5,-0.5),(5.5,-1.5)
            | (6,-1),(6,-1)
            | (-3.1,-32.5),(-5.1,-34.5)
            | (-2.1,-31.5),(-4.1,-33.5)
            | (-2.6,-31),(-2.6,-32)
            | (-2.1,-31.5),(-2.1,-31.5)
            | (7,14),(5,12)
            | (8,15),(6,13)
            | (7.5,15.5),(7.5,14.5)
            | (8,15),(8,15)
            | (-8,-8),(-10,-10)
            | (-7,-7),(-9,-9)
            | (-7.5,-6.5),(-7.5,-7.5)
            | (-7,-7),(-7,-7)
(24 rows)

-- scaling and rotation
SELECT '' AS twentyfour, b.f1 * p.f1 AS rotation
   FROM BOX_TBL b, POINT_TBL p;
 twentyfour |          rotation           
------------+-----------------------------
            | (0,0),(0,0)
            | (0,0),(0,0)
            | (0,0),(0,0)
            | (0,0),(0,0)
            | (0,0),(-20,-20)
            | (-10,-10),(-30,-30)
            | (-25,-25),(-25,-35)
            | (-30,-30),(-30,-30)
            | (0,2),(-14,0)
            | (-7,3),(-21,1)
            | (-17.5,2.5),(-21.5,-0.5)
            | (-21,3),(-21,3)
            | (0,79.2),(-58.8,0)
            | (-29.4,118.8),(-88.2,39.6)
            | (-73.5,104.1),(-108,99)
            | (-88.2,118.8),(-88.2,118.8)
            | (14,0),(0,-34)
            | (21,-17),(7,-51)
            | (29.5,-42.5),(17.5,-47.5)
            | (21,-51),(21,-51)
            | (0,40),(0,0)
            | (0,60),(0,20)
            | (0,60),(-10,50)
            | (0,60),(0,60)
(24 rows)

SELECT '' AS twenty, b.f1 / p.f1 AS rotation
   FROM BOX_TBL b, POINT_TBL p
   WHERE (p.f1 <-> point '(0,0)') >= 1;
 twenty |                               rotation                               
--------+----------------------------------------------------------------------
        | (0,0),(-0.2,-0.2)
        | (-0.1,-0.1),(-0.3,-0.3)
        | (-0.25,-0.25),(-0.25,-0.35)
        | (-0.3,-0.3),(-0.3,-0.3)
        | (0.08,0),(0,-0.56)
        | (0.12,-0.28),(0.04,-0.84)
        | (0.26,-0.7),(0.1,-0.82)
        | (0.12,-0.84),(0.12,-0.84)