[postgis] distance(geometry,geometry) function

[Frank Warmerdam]

> I know PROJ allows one to calculate the great-circle distance between
> two point, but does it calculate the point of closest approach between
> two lines?

Dave,

No.  You have a good point.  There is alot more to true geodetic geometry
than just computing great circles.  

Best regards,

---------------------------------------+--------------------------------------
I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
light and sound - activate the windows | http://pobox.com/~warmerdam
and watch the world go round - Rush    | Geospatial Programmer for Rent

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