<html><head></head><body><div style="font-family: Verdana;font-size: 12.0px;"><div>
<div>Hello thanks for replaying.</div>
<div> </div>
<div>just for me to clearify. When I have a Linestring like this "Linestring(10 20, 10 30, 20 40)" were the Point (10 20) and Point (20 40) are also vertices with a connection to other roads and where the Point(10 30) is just a node. When I understadn this right then OSRM will split this Linestring into 2 new entries in the OSRM data formats:</div>
<div> </div>
<div>"Linestring(10 20,10 30)" and</div>
<div>"Linestring(10 30, 20 40)"</div>
<div> </div>
<div>without taken turn restricturns into account to make it more simple. I think for urban areas is this fine were every node corrosponde to a vertex, but what about the counrty side. When I have a long road with a lots of nodes but less vertices. This will blow up the size of the data a littel bit or?!</div>
<div> </div>
<div>Kind regards</div>
<div> </div>
<div>Carsten</div>
<div>
<div name="quote" style="margin:10px 5px 5px 10px; padding: 10px 0 10px 10px; border-left:2px solid #C3D9E5; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;">
<div style="margin:0 0 10px 0;"><b>Gesendet:</b> Dienstag, 06. Mai 2014 um 02:58 Uhr<br/>
<b>Von:</b> "Dennis Luxen" <info@project-osrm.org><br/>
<b>An:</b> "Mailing list to discuss Project OSRM" <osrm-talk@openstreetmap.org><br/>
<b>Betreff:</b> Re: [OSRM-talk] Graph structur</div>
<div name="quoted-content">Hi,<br/>
<br/>
the basic structure is explained in a blog post:<br/>
<br/>
<a href="https://www.mapbox.com/blog/smart-directions-with-osrm-graph-model/" target="_blank">https://www.mapbox.com/blog/smart-directions-with-osrm-graph-model/</a><br/>
<br/>
—Dennis<br/>
<br/>
Am 05.05.2014 um 22:56 schrieb Carsten Malchow <carsten64stadt@gmx.de>:<br/>
<br/>
> Hello,<br/>
><br/>
> i have a question according to the handling of the geomerty in OSRM.<br/>
> How is the structur in the file with the node and egdes. How are the nodes mapped?<br/>
> From node to node or from intersection to the next intersection of a other road?<br/>
> One line (graph) can have more then one node?<br/>
><br/>
><br/>
> for better understanding here a small drawing:<br/>
><br/>
> f<br/>
> \ /<br/>
> a--b--c<br/>
> / \<br/>
> d<br/>
><br/>
> ab --> one insert in the data<br/>
> bc--> one insert in the data<br/>
> cd -->one insert in the data<br/>
> cf -->one insert in the data<br/>
><br/>
> OR:<br/>
> ac-->one insert in the data<br/>
> cd-->one insert in the data<br/>
> cf-->one insert in the data<br/>
><br/>
> Kind regards<br/>
><br/>
> Carsten<br/>
><br/>
> _______________________________________________<br/>
> OSRM-talk mailing list<br/>
> OSRM-talk@openstreetmap.org<br/>
> <a href="https://lists.openstreetmap.org/listinfo/osrm-talk" target="_blank">https://lists.openstreetmap.org/listinfo/osrm-talk</a><br/>
<br/>
<br/>
_______________________________________________<br/>
OSRM-talk mailing list<br/>
OSRM-talk@openstreetmap.org<br/>
<a href="https://lists.openstreetmap.org/listinfo/osrm-talk" target="_blank">https://lists.openstreetmap.org/listinfo/osrm-talk</a></div>
</div>
</div>
</div></div></body></html>