[postgis-users] Definition of St_Distance in case of 2 non point geometries

[Peter Hopfgartner]

I took it for granted, that ST_Distance between two two dimensional 
geometries followes the definition of

dist(A, B) = inf(d(a,b)), where a is an arbitrary point in set A and b 
an arbitrary point in set B and d() is the euclidean distance

For some reason I'm now wondering if my assumption is true.

Thanks for your patience,

Peter

-- 
Peter Hopfgartner
R3 GIS

web  : http://www.r3-gis.com