[postgis-devel] [PostGIS] #400: ST_SplitGeometry

[PostGIS]

#400: ST_SplitGeometry
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  Reporter:  strk     |       Owner:  strk         
      Type:  defect   |      Status:  new          
  Priority:  medium   |   Milestone:  PostGIS 2.0.0
 Component:  postgis  |     Version:               
Resolution:           |    Keywords:               
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Comment (by strk):

 Alright, here's the contract:

 - Will split a poly by a line, a line by a line and a line by a point
 - Will always return a COLLECTION of at most 2 elements: first element is
 what is left after the cut, second element is what was cut
 - When you cut a line using a point, what's left is the initial portion of
 the line (from start to point)
 - When you cut a poly or a line using a line what's left is arbitrarly
 taken as the cut-part which goes to the *left* of the cut line. This is
 for assonance with the word "left"

 For now there's no support for multi-part geometries requiring cutting,
 but given
 this contract it might not be too hard to support (every non-cut geometry
 would go to the "left" part).

-- 
Ticket URL: <http://trac.osgeo.org/postgis/ticket/400#comment:2>
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