[postgis-tickets] [PostGIS] #2627: st_linetocurve() pta_desegmentize needs implementation for npoints < 4

[PostGIS]

#2627: st_linetocurve() pta_desegmentize needs implementation for npoints < 4
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 Reporter:  mjurce   |       Owner:  pramsey      
     Type:  defect   |      Status:  new          
 Priority:  medium   |   Milestone:  PostGIS 2.0.5
Component:  postgis  |     Version:  2.0.x        
 Keywords:  curves   |  
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Comment(by pramsey):

 The only N < 4 that exists for this case is 3. And for 3-point lines the
 only interpretation is that the points are control points on the curve, so
 there's no "desegmentization" to be done. Basically this is just a cast,
 from linestring to circularstring. Or am I mis-interpreting?

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/2627#comment:3>
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