<div dir="ltr"><br><div class="gmail_extra">Hi Peter,</div><div class="gmail_extra"> <br><div class="gmail_quote">On Wed, Jul 29, 2015 at 1:40 PM, Peter <span dir="ltr"><<a href="mailto:graphhopper@gmx.de" target="_blank">graphhopper@gmx.de</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<div>Hi Mani,<br>
<br>
I assumed in my first answer you meant just the starting time. But
what you need is to make the full algorithm time dependent and for
that you'll need to modify the algorithm itself not just the input
parameters like I was suggesting. For example you need to
introduce a state object instead of just the traversalId and the
state object also contains the time to make it possible that some
edges are available only up to a certain time etc. <br>
<br></div></div></blockquote><div> </div><div> I have an object which takes care of restricted edges with time intervals. What I am thinking is to tweak the calcWeight method in my custom weighting and pass a new parameter which a unix timestamp(long variable). So the only thing left is to calculate time in the algorithm itself. While talking about tweaking algorithm, this is what i wanted to do. I will have a currTime as a member variable and add currTime only when a new node is added to the path and pass it to the calcWeight method whenever it checks for a restriction. That is only two places we need to tweak. </div><div> </div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div bgcolor="#FFFFFF" text="#000000"><div>
There are several possibilities, but the short story is that this
is not easy and really depends on the use case you have (public
transport? traffic information?) if there are simple alternatives.<br>
<br></div></div></blockquote><div><br></div><div> Usecase is not generic but instead of simple set of blocking edges we have set of edges that are time dependent. So the idea is to calculate the time while calculating the path. Will the above specified method works? Also why did you mention 'not easy'? Did I miss something important? </div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div bgcolor="#FFFFFF" text="#000000"><div>
Kind Regards,<br>
Peter<div><div class="h5"><br></div></div></div></div></blockquote><div><br></div><div>Thanks,</div><div>Mani </div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div bgcolor="#FFFFFF" text="#000000"><div><div><div class="h5">
<br>
On 29.07.2015 09:40, Manikanta Kondeti wrote:<br>
</div></div></div>
<blockquote type="cite"><div><div class="h5">
<div dir="ltr">Hi Peter,
<div><br>
</div>
<div> Thanks for the reply. I want to calculate the time for
every node added to the path. Lets say we have 5 nodes A B C D
E. I've started from A, so my currTime variable is defined
and set in Astar.java. So I am checking for A - B, while
calling calcWeight function in a weighting , I've to send my
currTime updated. Like currTime = currTime + ( A-B.distance()
/ encoder.getSpeed() ); So now in weighting calcWeight method
I can check for restriction. The problem is clear for Astar in
one way direction. How about bi-directional? What exactly the
above parameter does (heading_penalty)? We need to calculate
time in routing function ( Astar.java, AstarBi.java,
Dijkstra.java etc.) , right? Let me know if I am not clear. </div>
<div><br>
</div>
<div>Thanks, </div>
<div>Mani </div>
</div>
<br>
<fieldset></fieldset>
<br>
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