[postgis-users] Does the centroid function work?

[Paul Ramsey]

It is also defined on 'MultiSurface', which has 'MultiPolygon' as a 
child. Basically, any two-dimensional object should have a centroid. The 
'MultiSurface' definition notes that Centroid() return 'The mathematical 
centroid for this MultiSurface. The result is not guaranteed to be on
this MultiSurface.'

P.

David Blasby wrote:
> OGC says that centroid is only defined for polygons.
> 
> dave
> 
> 
> _______________________________________________
> postgis-users mailing list
> postgis-users at postgis.refractions.net
> http://postgis.refractions.net/mailman/listinfo/postgis-users
> 


-- 
       __
      /
      | Paul Ramsey
      | Refractions Research
      | Email: pramsey at refractions.net
      | Phone: (250) 885-0632
      \_