Thomas G. Lockhart 3f52d1705a Define boolean functions for lseg <, <=, <>, >=, >
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).
1998-02-03 15:55:58 +00:00
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1998-01-25 05:15:15 +00:00
1998-01-31 05:31:03 +00:00
1998-01-31 05:54:57 +00:00