[postgis-devel] [PostGIS] #2038: Exception of topogeo_AddLineString() of a line string with a part colinear with an existing one.

[PostGIS]

#2038: Exception of topogeo_AddLineString() of a line string with a part colinear
with an existing one.
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 Reporter:  wimned    |       Owner:  strk         
     Type:  defect    |      Status:  assigned     
 Priority:  medium    |   Milestone:  PostGIS 2.0.2
Component:  topology  |     Version:  trunk        
 Keywords:            |  
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Comment(by strk):

 Yes, the suggested workaround could work.

 This case falls in the general problem of adding a node to edge without
 moving the edge.

 It's clearly impossible NOT to move the edge, due to the finite nature of
 the numbers being used to represent points. But it should theoretically be
 possible to ensure that such a drift never introduces further
 intersections. Only pretty hard to do in practice (and we know topology
 building is already being very slow..)

-- 
Ticket URL: <http://trac.osgeo.org/postgis/ticket/2038#comment:12>
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