[pgrouting-users] directed and has_reverse_cost parameters

Maxime Phaneuf Maxime.Phaneuf at USherbrooke.ca
Mon Jun 27 16:31:41 EDT 2011


I was playing aroung with pgRouting 1.0.3 with this example  
(http://www.davidgis.fr/documentation/pgrouting-1.02/). I used the  
dijkstra_sp_directed() function  as stated in the example and  
everything worked like it was supposed to.

But, I tried changing the has_reverse_cost to false in the same  
function. I got no result back. I also tried with astar_directed, and  
still no results. As far as I understand, if the directed parameter is  
set to true and the has_reverse_cost is false, it means that reverse  
direction is prohibited and if has_reverse_cost is true, the reverse  
cost is used.

So, how come I get no result when I set has_reverse_cost to false  
while directed is true?

THanks in advance,

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