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<p>Looks awesome Ian,<br>
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<p>I submitted an issue at <a href="https://github.com/iant1212/networkReach/issues/2">https://github.com/iant1212/networkReach/issues/2</a> for adding a license to the repo.<br>
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<p>Best,<br>
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<p>Steve<br>
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<span style="font-size: 14pt; font-family: arial, sans-serif; color: #006c56;">Stephen V. Mather<br>
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clevelandmetroparks.com</span></a></span></p>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size: 11pt;"><b>From:</b> pgrouting-users-bounces@lists.osgeo.org <pgrouting-users-bounces@lists.osgeo.org> on behalf of Ian Tangert <itangert@gmail.com><br>
<b>Sent:</b> Tuesday, March 18, 2014 9:05 PM<br>
<b>To:</b> pgRouting users mailing list<br>
<b>Subject:</b> Re: [pgrouting-users] Isochronous</font>
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<div>Also there is a query at <a href="https://github.com/GregersP/networkReach" target="_blank">
https://github.com/GregersP/networkReach</a> that will do that (return edges based on nodes reached) and cover parts of segments when the cost distance goes beyond a node without reaching another node. It's based on pgr_drivingDistance() as mentioned. You
might not need such a level of detail but it's worth a look and I'm always looking for ways to improve on it if you have any suggestions.<br>
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-ian<br>
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<div class="gmail_quote">On Tue, Mar 18, 2014 at 1:45 PM, Daniel Kastl <span dir="ltr">
<<a href="mailto:daniel@georepublic.de" target="_blank">daniel@georepublic.de</a>></span> wrote:<br>
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<div class="h5">On Wed, Mar 19, 2014 at 2:32 AM, Valeria Muñoz <span dir="ltr"><<a href="mailto:valemunoz@gmail.com" target="_blank">valemunoz@gmail.com</a>></span> wrote:<br>
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<div dir="ltr">HI
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<div>I need to develop a system to generate isochrones according to minutes, you can make this with postgis and how?</div>
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<div>Valeria</div>
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<div>Hi Valeria,</div>
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<div>The function "pgr_drivingDistance" returns all nodes that can be reached from a start point within a certain "cost" (ie. time) and it also returns the time need to get to each of these nodes:</div>
<div><a href="http://docs.pgrouting.org/2.0/en/src/driving_distance/doc/dd_driving_distance.html#pgr-driving-distance" target="_blank">http://docs.pgrouting.org/2.0/en/src/driving_distance/doc/dd_driving_distance.html#pgr-driving-distance</a><br>
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<div>The function "pgr_pointsAsPolygon" then returns a polygon that includes a set of points:</div>
<div><a href="http://docs.pgrouting.org/2.0/en/src/driving_distance/doc/dd_points_as_polygon.html#pgr-points-as-polygon" target="_blank">http://docs.pgrouting.org/2.0/en/src/driving_distance/doc/dd_points_as_polygon.html#pgr-points-as-polygon</a><br>
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<div>The argument is a SQL statement, so if you need isochrones you could run it for each isoline.</div>
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<div>Daniel</div>
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-- <br>
<div dir="ltr"><span style="font-family: arial, sans-serif; font-size: 13px; border-collapse: collapse;">Georepublic UG & Georepublic Japan<br>
eMail: <a href="mailto:daniel.kastl@georepublic.de" target="_blank" style="color: #4263ab;">daniel.kastl@georepublic.de</a><br>
Web: <a href="http://georepublic.info/" target="_blank" style="color: #4263ab;">http://georepublic.info</a></span></div>
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