[postgis-users] RE Best projection srid for topology

Steve.Toutant at inspq.qc.ca Steve.Toutant at inspq.qc.ca
Wed May 27 09:55:32 PDT 2015

If you need to translate to meter I think you should avoid 3857 if you 
need precision on linear or surface measure. 
It depend where on earth you are....

Marc-André Goderre <magoderre at cgq.qc.ca>@lists.osgeo.org 
Envoyé par : postgis-users-bounces at lists.osgeo.org
2015-05-27 11:32
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[postgis-users] Best  projection srid for topology

Hello all,
I'm working on a many million lines topology project with OSM data in 4326 
srid. I'd like to know if i should transform their geom in a meter srid ( 
like 3857). Should it be faster for the 'toTopoGeom()' function to work 
with geometry in 4326 or in 3857 srid?

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