[FWTools] GEOS C API does not include DistanceOp?

[Frank Warmerdam]

Bryan Keith wrote:
> Hello all,
> 
> I'm using FWTools1.0.0 on windows.  I'm trying to get the distance from 
> a point to a polygon (or line), but I get this error using the python 
> wrapper:
> 
> GEOS C API does not include DistanceOp
> 
> Is there a good workaround?  Anyone have a Python algorithm to get the 
> distance between ogr geometries?
> 
> I also have FWTools-linux-1.0.0a7 installed on a linux machine, but I 
> get the same GEOS error.

Bryan,

If you file a bug against GDAL/OGR on this, I'll look at correcting the
problem.  The root of the problem was that the GEOS Distance operation was
not originally exposed in the GEOS C API, so when I shifted to that it
was lost.  I gather it is now available in the latest GEOS releases, so
the problem should be resolvable.

I'm afraid I don't have a good workaround suggestion in the meantime.

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    | President OSGF, http://osgeo.org