<div dir="ltr">Hi!<div>Maybe you can use the pgRouting extension for Postgis. </div><div>Here you can find a workshop about pgRouting to create a road network graph</div><div> <a href="http://workshop.pgrouting.org/chapters/introduction.html">http://workshop.pgrouting.org/chapters/introduction.html</a></div><div><br></div><div>or an example web map project about isocrhones </div><div><a href="http://www.flaviogortana.com/isoscope/">http://www.flaviogortana.com/isoscope/</a><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">2014-12-04 3:07 GMT-06:00 Hugues François <span dir="ltr"><<a href="mailto:hugues.francois@irstea.fr" target="_blank">hugues.francois@irstea.fr</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hello,<br>
<br>
Are you looking for something like that ?<br>
<br>
<a href="http://anitagraser.com/2011/02/12/drive-time-isochrones/" target="_blank">http://anitagraser.com/2011/02/12/drive-time-isochrones/</a><br>
<br>
In any case, I  think pgrouting and the use of topology could help you<br>
<br>
Hugues.<br>
<br>
<br>
-----Message d'origine-----<br>
De : <a href="mailto:postgis-users-bounces@lists.osgeo.org">postgis-users-bounces@lists.osgeo.org</a> [mailto:<a href="mailto:postgis-users-bounces@lists.osgeo.org">postgis-users-bounces@lists.osgeo.org</a>] De la part de image93<br>
Envoyé : jeudi 4 décembre 2014 10:03<br>
À : <a href="mailto:postgis-users@lists.osgeo.org">postgis-users@lists.osgeo.org</a><br>
Objet : [postgis-users] postgis : how to do Isochrone maps?<br>
<div class="HOEnZb"><div class="h5"><br>
Hello, I would like to make Isochrone maps with postgis(time and distance<br>
calculations)<br>
<br>
1 / Could you tell me how to do that with postgis please?<br>
<br>
2 / A 'road graph' should be compulsory. Do you know where we can get one?<br>
<br>
In advance, thank you for your reply.<br>
<br>
Regards.<br>
<br>
<br>
<br>
--<br>
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</div></div></blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature"><div dir="ltr">Harold Herrera Sánchez<br>Teléfono: 2259-4242<br>Celular: 8831-3082</div></div>
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