<div dir="ltr">thanks!!!</div><div class="gmail_extra"><br><br><div class="gmail_quote">2014-03-18 21:29 GMT-04:00 Stephen Woodbridge <span dir="ltr"><<a href="mailto:woodbri@swoodbridge.com" target="_blank">woodbri@swoodbridge.com</a>></span>:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi Ian,<br>
<br>
Can you add a reference to your project here:<br>
<br>
<a href="https://github.com/pgRouting/pgrouting/wiki/Writing-functions" target="_blank">https://github.com/pgRouting/<u></u>pgrouting/wiki/Writing-<u></u>functions</a><br>
<br>
under the Friends of pgRouting section.<br>
<br>
Thanks,<br>
-Steve<div class=""><br>
<br>
On 3/18/2014 9:05 PM, Ian Tangert wrote:<br>
</div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="">
Also there is a query at <a href="https://github.com/GregersP/networkReach" target="_blank">https://github.com/GregersP/<u></u>networkReach</a> that<br>
will do that (return edges based on nodes reached) and cover parts of<br>
segments when the cost distance goes beyond a node without reaching<br>
another node. It's based on pgr_drivingDistance() as mentioned. You<br>
might not need such a level of detail but it's worth a look and I'm<br>
always looking for ways to improve on it if you have any suggestions.<br>
<br>
-ian<br>
<br>
<br>
On Tue, Mar 18, 2014 at 1:45 PM, Daniel Kastl <<a href="mailto:daniel@georepublic.de" target="_blank">daniel@georepublic.de</a><br></div><div class="">
<mailto:<a href="mailto:daniel@georepublic.de" target="_blank">daniel@georepublic.de</a>><u></u>> wrote:<br>
<br>
<br>
<br>
<br>
On Wed, Mar 19, 2014 at 2:32 AM, Valeria Muñoz <<a href="mailto:valemunoz@gmail.com" target="_blank">valemunoz@gmail.com</a><br></div><div class="">
<mailto:<a href="mailto:valemunoz@gmail.com" target="_blank">valemunoz@gmail.com</a>>> wrote:<br>
<br>
HI<br>
<br>
I need to develop a system to generate isochrones according to<br>
minutes, you can make this with postgis and how?<br>
<br>
Valeria<br>
<br>
<br>
<br>
Hi Valeria,<br>
<br>
The function "pgr_drivingDistance" returns all nodes that can be<br>
reached from a start point within a certain "cost" (ie. time) and it<br>
also returns the time need to get to each of these nodes:<br>
<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/<u></u>en/src/driving_distance/doc/<u></u>dd_driving_distance.html#pgr-<u></u>driving-distance</a><br>
<br>
The function "pgr_pointsAsPolygon" then returns a polygon that<br>
includes a set of points:<br>
<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/<u></u>en/src/driving_distance/doc/<u></u>dd_points_as_polygon.html#pgr-<u></u>points-as-polygon</a><br>
<br>
The argument is a SQL statement, so if you need isochrones you could<br>
run it for each isoline.<br>
<br>
Daniel<br>
<br>
<br>
<br>
<br>
<br>
--<br>
Georepublic UG & Georepublic Japan<br></div>
eMail: <a href="mailto:daniel.kastl@georepublic.de" target="_blank">daniel.kastl@georepublic.de</a> <mailto:<a href="mailto:daniel.kastl@georepublic.de" target="_blank">daniel.kastl@<u></u>georepublic.de</a>><div class="">
<br>
Web: <a href="http://georepublic.info" target="_blank">http://georepublic.info</a><br>
<br>
______________________________<u></u>_________________<br>
Pgrouting-users mailing list<br></div>
<a href="mailto:Pgrouting-users@lists.osgeo.org" target="_blank">Pgrouting-users@lists.osgeo.<u></u>org</a> <mailto:<a href="mailto:Pgrouting-users@lists.osgeo.org" target="_blank">Pgrouting-users@lists.<u></u>osgeo.org</a>><br>
<a href="http://lists.osgeo.org/mailman/listinfo/pgrouting-users" target="_blank">http://lists.osgeo.org/<u></u>mailman/listinfo/pgrouting-<u></u>users</a><div class=""><br>
<br>
<br>
<br>
<br>
______________________________<u></u>_________________<br>
Pgrouting-users mailing list<br>
<a href="mailto:Pgrouting-users@lists.osgeo.org" target="_blank">Pgrouting-users@lists.osgeo.<u></u>org</a><br>
<a href="http://lists.osgeo.org/mailman/listinfo/pgrouting-users" target="_blank">http://lists.osgeo.org/<u></u>mailman/listinfo/pgrouting-<u></u>users</a><br>
<br>
</div></blockquote><div class="HOEnZb"><div class="h5">
<br>
______________________________<u></u>_________________<br>
Pgrouting-users mailing list<br>
<a href="mailto:Pgrouting-users@lists.osgeo.org" target="_blank">Pgrouting-users@lists.osgeo.<u></u>org</a><br>
<a href="http://lists.osgeo.org/mailman/listinfo/pgrouting-users" target="_blank">http://lists.osgeo.org/<u></u>mailman/listinfo/pgrouting-<u></u>users</a><br>
</div></div></blockquote></div><br></div>