[postgis-devel] [PostGIS] #1706: TopoGeo_AddPolygon not adding polygons

[PostGIS]

#1706: TopoGeo_AddPolygon not adding polygons
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 Reporter:  pramsey   |       Owner:  strk         
     Type:  defect    |      Status:  new          
 Priority:  medium    |   Milestone:  PostGIS 2.0.0
Component:  topology  |     Version:  trunk        
 Keywords:            |  
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Comment(by strk):

 And here's some more pictures.

 This is the intersection between the new edge (snapped) and the old one
 (in yellow)

 [[Image(int_new_old.png)]]

 And here's the above intersection (now in red) after snapping self against
 its own endpoints (becomes the yellow one).

 [[Image(wrong_endpoint_snap.png)]]

 Note that the drift from the original is below 3 units (everything
 succeeds with a tolerance of 2)

 With this new informations I might have enough data to try at reproducing
 at smaller scale (with less data). For sure ST_Snap instability has a big
 role in this.

-- 
Ticket URL: <http://trac.osgeo.org/postgis/ticket/1706#comment:7>
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