<div dir="ltr"><span style="font-family:arial,sans-serif;font-size:13px">Hi,</span><div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">i am wondering if there is any algo within pgrouting 2, which will allow edges to have negative costs (without negative circles)? </div>
<div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">i was not able to find such, and in this event, is there some clever way, to achieve a similar effect?</div>
<div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">in specific, i am trying to solve a pac-man like problem.</div><div style="font-family:arial,sans-serif;font-size:13px">
<br></div><div style="font-family:arial,sans-serif;font-size:13px">trying to find best route, given graph, where on some edges there are "fruits" to collect, collecting fruits will have a positive effect.</div><div style="font-family:arial,sans-serif;font-size:13px">
<br></div><div style="font-family:arial,sans-serif;font-size:13px">your goal to collect as many fruits as possible, fruit can have a -1 cost for example while each edge has it length as a positive cost.</div><div style="font-family:arial,sans-serif;font-size:13px">
<br></div><div style="font-family:arial,sans-serif;font-size:13px">the outcome should be a route, where at any distance(this is flexible, as long as it achieve a similar goal) from route, the outcome route will have the best score out of all other routes.</div>
<div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">i tried using shortest path algo, with out negative costs, but i am unable to come up with a solution which will indeed provide such or similar solution. (in specfic un able to come up with costs, which will indeed "force" the route to collect those "fruits")</div>
<div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">i will appreciate any insight or direction for solving this problem.</div><div style="font-family:arial,sans-serif;font-size:13px">
<br></div><div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">* the fruits are actually poi, such as bus stations, museums etc.</div><div style="font-family:arial,sans-serif;font-size:13px">
* if negative edge costs are allowed, the problem is solved.</div><div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">thanks for your help!</div></div>