[postgis-users] PointM, PolyLineM, PolygonM

[Frank Warmerdam]

Paul Ramsey wrote:
> Is is possible to have measure *and* elevation in a shapefile? XYZM? Or 
> is it only XYZ and XYM?
> Paul


Paul,

Certainly you can have both, though it is uncommon.  Sufficiently
uncommon that I have never encountered it (or at least that I have
forgotten encountering it :-) ).

Best regards,
-- 
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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