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<div class="moz-cite-prefix">Hey Bruno,<br>
<br>
in a version before 0.3 it was hard to find out the orientation of
*an edge* as for bidirectional algorithms there is a forward and
backward search going on. Maybe a solution via your "baseNode <
adjNode" check is the only one.<br>
<br>
*But* now that I better understand your use case ... to find out
how the original *OSM way* (not the edge) is oriented is
impossible as we "forget" this information while import. What do
you want to achieve with this or what information relies on the
original OSM way orientation?<br>
<br>
Regards,<br>
Peter.<br>
<br>
<br>
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cite="mid:CANsAejWUYS-S+M6p2tPG9pQaB-JdSo_Mo+ADBPO3LTz6RQiWVg@mail.gmail.com"
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<div>Hi,<br>
The reverseNavigation flag is meant to tell me if the
edge passed as parameter<br>
</div>
will be used in the path returned by route() in the same
direction as the edge's way in the OSM file, or in the
reverse direction.<br>
<br>
</div>
I use this information in order to apply the overrides that
we implemented at Rinkai.<br>
<br>
From what I understood in yesterday's discussion, in the
current release there is already such a flag beeing passed
to the weighting function, but I am using a cloned
repository which was last merged march 17.<br>
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Thanks<br>
</div>
Bruno<br>
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<div><br>
----- Forwarded Message -----<br>
<div class="gmail_quote">
Sent: Wednesday, June 11, 2014 4:27 PM<br>
Subject: Re: Detecting the orientation of an
edge against the orientation of the way in OSM<br>
<br>
Hey Bruno,<br>
<br>
looks like my mail in <a
moz-do-not-send="true"
href="http://yahoo.de" target="_blank">yahoo.de</a>
does not like message from your <a
moz-do-not-send="true"
href="http://yahoo.com" target="_blank">yahoo.com</a><br>
;) hope they'll resolve this somehow. (for now
keep me in CC)<br>
<br>
What do you want to achieve with
reverseNavigation?<br>
<br>
The reverse variable is necessary if the
backward search is going on -<br>
e.g. you need to call edge.getReverseSpeed. So
I guess you just need<br>
reverseNavigation=reverse but not sure ...<br>
<br>
Regards,<br>
Peter.<br>
<br>
<br>
<br>
<br>
> Hi,<br>
> I have some code to override the edge's
weight depending on the orientation of the way
in OSM. Please could you tell me if the
snippet below is correctly detecting the
orientation of the edge against the
orientation of the way in OSM? My doubt is
mainly for the first statement reverseEdge=...<br>
><br>
> public double calcWeight(
EdgeIteratorState edge, boolean reverse ) {<br>
> ...<br>
> // is the edge in the same direction
as way in OSM<br>
><br>
> boolean
reverseEdge=edgeIteratorState.getBaseNode()
<edgeIteratorState.getAdjNode();<br>
> ...<br>
><br>
> // compare reverseEdge and reverse to
figure out if we are navigating the edge
forward<br>
><br>
> // or backward according to way in
OSM<br>
> boolean
reverseNavigation=reverseEdge!=reverse;<br>
> ...<br>
><br>
> Thanks!<br>
> Bruno <br>
><br>
<span class=""><font color="#888888"><br>
<br>
--<br>
GraphHopper.com - Fast & Flexible Road
Routing</font></span></div>
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