[R-sig-Geo] Geos library

[Hisaji ONO]

 How about using PostGIS which has an interface to GEOS?

 And PostGIS's spatial indices has good performance for overlay analysises
and spatial queries.

 And R has a few interfaces to PostgreSQL.


> Has anyone considered an R interface to the geos library:
>
> http://geos.refractions.net/
>
> GEOS (Geometry Engine - Open Source) is a C++ port of the Java Topology
> Suite (JTS). As such, it aims to contain the complete functionality of
> JTS in C++. This includes all the OpenGIS "Simple Features for SQL"
> spatial predicate functions and spatial operators, as well as specific
> JTS topology functions such as IsValid().
>
>
>   - now if we can link R spatial classes to this, we can build a
> complete set of spatial predicate functions and spatial operators in R....
>
> Barry