[gdal-dev] GEOS geometry processing question

[Frank Warmerdam]

Martin Chapman wrote:
> Frank,
> 
>  
> 
> I notice the gdal code appears to re-order the geometries when geos is in
> use.  What is the purpose of this?  Is it for optimized processing or is it
> critical to the outcome of the geos algorithms?

Martin,

Do you mean that the geometries within something like a MULTIPOINT,
MULTILINESTRING or MULTIPOLYGON get reordered?   This is certainly not
something being specifically done by OGR but may be a side effect of
translating to GEOS format and back.

Best regards,
-- 
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I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
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