[postgis-users] Magnifying Topology

strk strk at keybit.net
Wed Nov 17 03:10:19 PST 2010

On Wed, Nov 17, 2010 at 11:40:41AM +0100, Jan Hartmann wrote:
> Perhaps this is the wrong list to ask, but I just read Martin Davis' column:
> http://lin-ear-th-inking.blogspot.com/2010/08/magnifying-topology-using-jts.html
> It's a tool for the Java Topology Suite (JTS) to discover small 
> topological errors in a vector map. It solves a problem that I have 
> suffered from during my whole GIS career: getting correct input maps. 
> How difficult would it be to implement this in GEOS, and, possibly, to 
> build a hook for it in PostGIS?

The code seems to be only in TestBuilder, not in core JTS libs.
Are you sure you want it in PostGIS, btw ? As it really sounds to me
as something you'd want to compute _temporary_ visualizations for
human consumption (no analitical computations).


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