[postgis-devel] corrected patch add precision reduction

[Carl Anderson]

correction, as patch was malformed

patch adding

clean(Geometry)
reduceprecision(Geometry, Scale)
filter(Geometry,  ObjectClass)   where ObjClass == enum 
{'POINTS','LINES','POLYGONS'}

I want to add a patch to allow

difference( g1, g2, scale)
symdifference(g1, g2, scale)
intersection(g1, g2, scale)
isvalid(g1,scale)
...

where each builds an alternate GeometryFactory and then calls the root 
function.

but i'm not sure if  each should call an an alternate initGEOS 
(MAXALIGN, Scale)
or if a setScale(Scale)  function should override the existing 
GeometryFactory
or if a vector of GeometryFactories should be maintained and a declared 
desired scale
would cause LWGEOM2POSTGIS to use the correct one.

C.

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