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</o:shapelayout></xml><![endif]--></head><body lang=FI link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Hi Folks,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span lang=EN-US>I need to make some data creation and I need to create Voronoi’s from thousands of points. I have now installed and tested PL/R-DelDir solution. It is very slow, IMHO. Any faster solutions on your mind? Continue reading if you’re interested:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>I have dataset of 31k points. With QuantumGIS (Ftools), I can create Voronoi polygons in 2-3 minutes, with Spatialite (version 4.0), it took 1:22. With PostGIS/PLR/DelDIr, I pretty much stop the process after 15 minutes. Am I doing something wrong or is it so that PLR/DelDir is so much slower?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Spatialite is using now newest version of GEOS and they have implemented ST_VoronojDiagram –method: <a href="https://www.gaia-gis.it/fossil/libspatialite/wiki?name=tesselations-4.0">https://www.gaia-gis.it/fossil/libspatialite/wiki?name=tesselations-4.0</a>. Are there any plans to implement similar functions to PostGIS 2.1+?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Rgs,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Pekka<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span style='mso-fareast-language:FI'>--<o:p></o:p></span></p><p class=MsoNormal><span style='mso-fareast-language:FI'>Pekka Sarkola<o:p></o:p></span></p><p class=MsoNormal><span style='mso-fareast-language:FI'>Gispo Oy<o:p></o:p></span></p><p class=MsoNormal><span style='mso-fareast-language:FI'><a href="mailto:pekka.sarkola@gispo.fi"><span style='color:blue'>pekka.sarkola@gispo.fi</span></a> - GSM +358 40 725 2042<o:p></o:p></span></p><p class=MsoNormal><span style='mso-fareast-language:FI'><a href="http://www.gispo.fi"><span style='color:blue'>www.gispo.fi</span></a> – <a href="http://www.paikkatieto.com"><span style='color:blue'>www.paikkatieto.com</span></a> <o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>