Simon Perkins wrote:
Hi,Are there any C# bindings for GEOS out there?
Not that I know of - at least not as part of GEOS.
We've been using the OGR interface to GEOS (which are exposed by the OGR C# bindings), but are running into some strange topology exceptions (side location conflicts and non-nodal intersections) and I'd like to use the GEOS isValid() method which is not exposed by OGR, AFAIK. Might using the GEOS library directly be more efficient than going through OGR as well?
Hmm, probably not a big difference.
Anyway, I could go off and roll PInvoke stubs for the GEOS functions I need in not much time, but I figured I'd see what other people have already before I do that. Any interest in adding such bindings to geos? I could also take a look at SWIG, but it always scares me for some reason...
More recent versions of SWIG have a standard typemaps that apply for the scripting languages - so Perl, Ruby, Python. Thus it would be very easy to reuse the current bindings for one of those language.
However, SWIG's static languages (C#, Java, etc.) use a different system. So you would have to take the current geos.i file and significantly change it to work with C#. The OGR C# bindings could probably provide some guidance.
Charlie
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