Define boolean functions for lseg <, <=, <>, >=, >

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Define close_ls(), close_lseg(), lseg_length().
Write real code for close_sb(), close_pb(), inter_sb(), inter_lb().
Repair lseg_perp() which determines if two lsegs are perpendicular.
Repair lseg_dt() distance between two lsegs.
Note: close_sl() is clearly broken  but will repair later
 (calculating point on lseg rather than point on line).

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Thomas G. Lockhart 1998-02-03 15:55:58 +00:00

parent 50436b7214

commit 3f52d1705a

1 changed files with 506 additions and 165 deletions

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src/backend/utils/adt/geo_ops.c

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