<div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><div class="gmail_quote"><div><div class="h5"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div class="gmail_quote"><div><div><br></div></div><div>Sorry, I was wrong ... it's the right function you're using. Somehow read driving directions somewhere before.</div><div>Driving directions does what you need, except that it returns you a list of vertices you can reach and the edges column doesn't return anything useful.</div>
<div><br></div><div>This custom wrapper function takes the vertices and calculates a polygon that contains all of them:</div><div><a href="https://github.com/pgRouting/pgrouting/blob/master/extra/driving_distance/sql/routing_dd_wrappers.sql#L78" target="_blank">https://github.com/pgRouting/pgrouting/blob/master/extra/driving_distance/sql/routing_dd_wrappers.sql#L78</a></div>
</div></blockquote><div><br></div></div></div><div>Yes this creates a polygon consisting all vertices but I want to display a road network that show how to go from source to outlying vertices. Actually I think driving distance's edge info should give that info since it calculates a distance from source. If that function know how distant is the vertice it should know the path am I wrong on this ? </div>
<div><br></div><div>As I wrote, calculating shortest path for each vertex from source does not seem feasible. Can we make driving distance to show edge info ? I am willing to conribute in that sense but I don't want to redo what is done before. </div>
<div> </div></div></blockquote><div><br></div><div>Driving Distance function uses Dijkstra algorithm:</div><div><meta http-equiv="content-type" content="text/html; charset=utf-8"><a href="https://github.com/pgRouting/pgrouting/blob/master/extra/driving_distance/src/drivedist.c#L341">https://github.com/pgRouting/pgrouting/blob/master/extra/driving_distance/src/drivedist.c#L341</a></div>
<div>Dijkstra only goes from vertex to vertex.</div><div><br></div><div>@Anton: do you have some hint?</div><div><br></div><div>Daniel</div><div> </div></div><br>-- <br><span style="font-family:arial, sans-serif;font-size:13px;border-collapse:collapse">Georepublic UG & Georepublic Japan<br>
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