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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">That's the problem. I use the whole planet road data. I' can't use UTM or MTM meter srid.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">Thanks<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="FR" style="font-size:11.0pt;font-family:"Calibri","sans-serif"">Marc</span><span style="font-size:11.0pt;font-family:"Calibri","sans-serif""><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span lang="FR" style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">De :</span></b><span lang="FR" style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> postgis-users-bounces@lists.osgeo.org [mailto:postgis-users-bounces@lists.osgeo.org]
<b>De la part de</b> Steve.Toutant@inspq.qc.ca<br>
<b>Envoyé :</b> 27 mai 2015 12:56<br>
<b>À :</b> PostGIS Users Discussion<br>
<b>Cc :</b> postgis-users-bounces@lists.osgeo.org<br>
<b>Objet :</b> [postgis-users] RE Best projection srid for topology<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">If you need to translate to meter I think you should avoid 3857 if you need precision on linear or surface measure.
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<span style="font-size:10.0pt;font-family:"Arial","sans-serif"">It depend where on earth you are....</span>
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<p class="MsoNormal"><b><span style="font-size:7.5pt;font-family:"Arial","sans-serif"">Marc-André Goderre <<a href="mailto:magoderre@cgq.qc.ca">magoderre@cgq.qc.ca</a>>@lists.osgeo.org</span></b><span style="font-size:7.5pt;font-family:"Arial","sans-serif"">
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<span style="font-size:7.5pt;font-family:"Arial","sans-serif"">Envoyé par : <a href="mailto:postgis-users-bounces@lists.osgeo.org">
postgis-users-bounces@lists.osgeo.org</a></span> <o:p></o:p></p>
<p><span style="font-size:7.5pt;font-family:"Arial","sans-serif"">2015-05-27 11:32</span>
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<span style="font-size:7.5pt;font-family:"Arial","sans-serif"">Veuillez répondre à<br>
PostGIS Users Discussion <<a href="mailto:postgis-users@lists.osgeo.org">postgis-users@lists.osgeo.org</a>></span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:7.5pt;font-family:"Arial","sans-serif"">"<a href="mailto:postgis-users@lists.osgeo.org">postgis-users@lists.osgeo.org</a>" <<a href="mailto:postgis-users@lists.osgeo.org">postgis-users@lists.osgeo.org</a>></span>
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<p class="MsoNormal"><span style="font-size:7.5pt;font-family:"Arial","sans-serif"">[postgis-users] Best projection srid for topology</span><o:p></o:p></p>
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<tt><span style="font-size:10.0pt">Hello all,</span></tt><span style="font-size:10.0pt;font-family:"Courier New""><br>
<tt>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?</tt><br>
<tt>Thanks</tt><br>
<br>
<tt>Marc</tt><br>
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