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Hi Sandro,<div><br></div><div>Approximately how much time/money would you project to enable SQL/MM Network Topology?</div><div><br></div><div>Thanks,</div><div>Chris<br><br><div><div id="SkyDrivePlaceholder"></div>> Date: Tue, 24 Jan 2012 09:34:21 +0100<br>> From: willi8345@web.de<br>> To: postgis-users@postgis.refractions.net<br>> Subject: Re: [postgis-users] PostGIS 2.0 - network topology - crosses edges (SQL/MM: Topo-Net: NEDNODE, NEDLINK)<br>> <br>> Hi Sandro,<br>> Thank you very much for your quick response - helps me a lot!!<br>> Best wishes, willi<br>> <br>> <br>> -----Ursprüngliche Nachricht-----<br>> Von: "Sandro Santilli" <strk@keybit.net><br>> Gesendet: 24.01.2012 09:03:01<br>> An: "PostGIS Users Discussion" <postgis-users@postgis.refractions.net><br>> Betreff: Re: [postgis-users] PostGIS 2.0 - network topology - crosses edges (SQL/MM: Topo-Net: NEDNODE, NEDLINK)<br>> <br>> >On Tue, Jan 24, 2012 at 08:52:54AM +0100, willi8345@web.de wrote:<br>> >> Hi,<br>> >><br>> >> I'm trying to build a linear application (topology network) with PostGIS<br>> >> 2.0.0SVN.<br>> >><br>> >> My real world situation has crosses edges with no nodes (water lines or<br>> >> hiqh voltage power lines in different heights or levels, where both edges<br>> >> have nothing to do with each other).<br>> >><br>> >> Topo-Geo assumes full planar topology and gives me an error on this<br>> >> crossing edges.<br>> >> (SQL/MM Spatial exception - egometry crosses an edge)<br>> >><br>> >> The only possiblity I see at the moment to build it up in different<br>> >> topology schemas, which would be ok for example between water lines and<br>> >> low voltage cables, but not between high voltage power lines themselves.<br>> >><br>> >> Is it possible with PostGIS 2.0 (at the moment) to build up this situation<br>> >> within on topology schema?<br>> >><br>> >> If yes - how?<br>> >> If no - will it come up in future versions?<br>> ><br>> >Not possible with Topo-Geo. As you point out SQL/MM Topo-Geo assumes planar<br>> >topology. But SQL/MM Network-Topology will let you model your network.<br>> ><br>> >Network-topology is not available in 2.0, but could surely come up in<br>> >future versions if anyone will be investing time / money on it.<br>> ><br>> >--strk;<br>> ><br>> > () Free GIS & Flash consultant/developer<br>> > /\ http://strk.keybit.net/services.html<br>> >_______________________________________________<br>> >postgis-users mailing list<br>> >postgis-users@postgis.refractions.net<br>> >http://postgis.refractions.net/mailman/listinfo/postgis-users<br>> <br>> <br>> ___________________________________________________________<br>> SMS schreiben mit WEB.DE FreeMail - einfach, schnell und<br>> kostenguenstig. Jetzt gleich testen! http://f.web.de/?mc=021192<br>> _______________________________________________<br>> postgis-users mailing list<br>> postgis-users@postgis.refractions.net<br>> http://postgis.refractions.net/mailman/listinfo/postgis-users<br></div></div> </div></body>
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