[postgis-tickets] [PostGIS] #2837: ST_Extrude unexpected GeometryType in extrude('Solid')

[PostGIS]

#2837: ST_Extrude unexpected GeometryType in extrude('Solid')
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 Reporter:  robe    |       Owner:  colivier     
     Type:  defect  |      Status:  new          
 Priority:  medium  |   Milestone:  PostGIS 2.2.0
Component:  sfcgal  |     Version:  trunk        
 Keywords:          |  
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Changes (by colivier):

 * cc: vincent.mora@… (added)


Comment:

 At first sight it looks like:

 - You call ST_Extrude twice in your query
 - First time ST_Extrude should return a closed PolyhedralSurface (with
 SOLID Bit)
 - Second time ST_Extrude can't deal with this Solid input and so return
 the related error message.

 Nota: there is no SOLID GeometryType inside PostGIS, it's internal to
 SFCGAL
 (based on PS or TIN with SOLID bit)


 The question remaining is:
 As we can extrude in x,y,z should/could we still extrude even from a solid
 ?
 Vincent could you answer from a (SF)CGAL point of view ?

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/2837#comment:1>
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