[geos-devel] Problems creating polygons with holes
    Norman Vine 
    nhv at cape.com
       
    Wed Jun 30 11:23:06 EDT 2004
    
    
  
> 
> > I had assumed that the holes were treated as polygons as well :(
> 
> If polygon holes were defined by polygons, then your holes could have holes 
> (which in turn could have holes...)!
not so far fetched ..
ie. an island in a pond in an island in a lake in an island in the ocean :-)
< assuming a hole in a water polygon is land and visa versa >
Norman
    
    
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