[Gdal-dev] GEOS precision model?

[Ari Jolma]

I'm doing some rather heavy duty geocomputation with OGR (via Perl 
module Geo::OGR of course), mainly intersections. I run into a problem, 
where GEOS throws a topology exception since the vertices of the two 
geometries are very close to each other (6 digits same, then differences).

I'm no GEOS guru, but it seems there is a possibility to improve the 
robustness of overlay operations with precision models(?). I think they 
could be useful for me now.

Is there a way to take advantage of what GEOS offers (and what does it 
really offer, if I could have a quick lesson...) via OGR? And if not, 
would it be difficult to hack it in?

Regards,

Ari