[postgis-tickets] [PostGIS] #2423: [REGRESSION] ST_LineToCurve gets semicircle wrong

[PostGIS]

#2423: [REGRESSION] ST_LineToCurve gets semicircle wrong
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 Reporter:  strk     |       Owner:  pramsey      
     Type:  defect   |      Status:  new          
 Priority:  medium   |   Milestone:  PostGIS 2.0.4
Component:  postgis  |     Version:  2.0.x        
 Keywords:  curves   |  
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Comment(by strk):

 Beside breaking the arc at the appropriate place (when angle between edges
 changes drastically) I think we should also avoid to define circles with a
 single curve, because such a curve would effectively be only defined by 2
 points (as first and last would be the same) thus allowing for infinite
 arcs. When a circle is detected (which would be wrong, in this case) the
 code should produce an output composed by two semicircle curves (but this
 is probably the topic for another ticket).

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/2423#comment:3>
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