[postgis-users] MULTIPOINT

[Martin Davis]

Thanks for the clarification, Frank.  We wondered about this when we implemented JTS.  We ended up basing our decision on what to support on what some other implementations chose (IBM or Oracle, I think).  Unfortunately, they chose the wrong one too...  So JTS is incorrect as well, at the moment.  We'll fix it to emit the correct syntax in the next release.

Martin Davis, Senior Technical Specialist
Vivid Solutions Inc.
Suite #1A-2328 Government Street   Victoria, B.C.   V8T 5G5
Phone: (250) 385 6040    Fax: (250) 385 6046
EMail: mbdavis at vividsolutions.com  Web: www.vividsolutions.com


> -----Original Message-----
> From: Frank Warmerdam [mailto:warmerdam at pobox.com]
> Sent: Friday, October 25, 2002 8:16 AM
> To: postgis
> Subject: [postgis-users] MULTIPOINT
> 
> 
> Guys,
> 
> I was wondering, what is the proper form for MULTIPOINT() 
> geometries in
> PostGIS?
> 
> The SFSQL spec's BNF implies MULTIPOINT((1 2), (3 4)) (that 
> is each point
> is bracketed) while the example shows MULTIPOINT(1 2, 3 4).  
> I coded to the
> example, but have received clarification from the spec author 
> that the BNF
> is correct and the example is wrong.  So I am fixing OGR 
> (though I will
> consume both forms).  I just want to ensure that PostGIS 
> supports the correct
> form.
> 
> Likewise, JTS if it has a WKT ingestor .. I haven't looked at it yet.
> 
> 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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