[postgis-users] postgis 1.4 and curves

Mark Cave-Ayland mark.cave-ayland at siriusit.co.uk
Thu Jul 30 09:06:29 PDT 2009


mario at geosar.ch wrote:

> Thanks for you answer Mark,
> but st_linetocurve in my test cases always add a segment at the end or at
> the start of the original curve.
> St_linetocurve behaviour in this way is not good for me because I need the
> same curves with the same original points ( millimeter differences can be
> accepted ).
> 
> Postgis functions curve geometry support is planed for development?
> 
> Anyway thanks
> 
> mario

Hi Mario,

The PostGIS support is pretty much there with 1.4, however GEOS doesn't 
(yet) handle curved geometries and this is where all the work with the 
spatial predicates is done :(


ATB,

Mark.

-- 
Mark Cave-Ayland - Senior Technical Architect
PostgreSQL - PostGIS
Sirius Corporation plc - control through freedom
http://www.siriusit.co.uk
t: +44 870 608 0063



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