[postgis-tickets] [PostGIS] #2945: ST_ClipByBox2D raises an exception with unclosed polygon rings input

[PostGIS]

#2945: ST_ClipByBox2D raises an exception with unclosed polygon rings input
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 Reporter:  strk     |       Owner:  pramsey      
     Type:  defect   |      Status:  new          
 Priority:  blocker  |   Milestone:  PostGIS 2.2.0
Component:  postgis  |     Version:  trunk        
 Keywords:           |  
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 By contract ST_ClipByBox2D should never raise an exception.
 It does when fed polygons with unclosed rings.
 The problem is that the function is implemented in GEOS so the input
 geometry must be "convertible" even if not topologically valid.

 I think the quickest way to fix this would be to add an optional parameter
 in the postgis-to-geos converter to allow automatically "fixing enough for
 geos to be happy" those geometries. There's code for that in the
 ST_MakeValid code path...

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/2945>
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