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It described in osm-wiki
(<a class="moz-txt-link-freetext" href="http://wiki.openstreetmap.org/wiki/Relation:restriction#Members">http://wiki.openstreetmap.org/wiki/Relation:restriction#Members</a>).<br>
There is not only "from way - via node - to way" way to specify
restriction in osm, but as I remember GH work only with this
(<a class="moz-txt-link-freetext" href="http://wiki.openstreetmap.org/wiki/File:Intersection_TurnRestriction_ViaNode.PNG">http://wiki.openstreetmap.org/wiki/File:Intersection_TurnRestriction_ViaNode.PNG</a>).<br>
<br>
<div class="moz-cite-prefix">On 12.06.2015 18:28, Nick Bauer wrote:<br>
</div>
<blockquote
cite="mid:CAH3kBmwwU8Xo_hh59h+wm_VUWpQcY+iXx0b1qfZQ-WUvoGjEag@mail.gmail.com"
type="cite">
<div dir="ltr">
<div>
<div>
<div>Ok, so I believe I have figured out the "correct" way
to represent a turn restriction in OSM so its considered
by GH:<br>
<br>
</div>
Seems to be that the most important part is that the ways
are exact, meaning that they are split at the via node.<br>
</div>
<div>Put another way, the via node must represent the end of
the "from" way and the same via node is also the end of the
"to" way.<br>
</div>
I couldn't find this documented anywhere, although sometimes I
am blind to certain things :)<br>
<br>
</div>
The order of to, from, via is unimportant, as i have tested it
with via as the second, and last entries in the relation.<br>
<br>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Fri, Jun 12, 2015 at 9:12 AM, Nick
Bauer <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:nick.j.bauer@gmail.com" target="_blank">nick.j.bauer@gmail.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">Here is an example relation:
<div><img src="cid:part2.05030806.05090300@gmail.com"
alt="Inline image 1" height="441" width="474"><br>
</div>
<div><br>
</div>
<div>My routing can turn in either direction, no
restriction is upheld.</div>
</div>
<div class="HOEnZb">
<div class="h5">
<div class="gmail_extra"><br>
<div class="gmail_quote">On Fri, Jun 12, 2015 at 9:06
AM, dos65 <span dir="ltr"><<a
moz-do-not-send="true"
href="mailto:qtankle@gmail.com" target="_blank">qtankle@gmail.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000"> Sorry, my
mistake. Certainly members should contains via,
from and to.<br>
<br>
While processing restrictions, gh look to
restriction tag's value prefix(no or only) and
restrict or allow by from, via, to. There is no
difference between only_right_turn and
only_left_turn if members are equals.
<div>
<div><br>
<br>
<br>
<div>On 12.06.2015 16:52, Nick Bauer wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">I've read that the relation
must have:
<div>from, to, via.</div>
<div><br>
</div>
<div>Are you saying that it will work if
the relation is only containing from,
to? Is the ordering important?</div>
<div><br>
</div>
<div>Are there certain types of
restrictions that work over others?
such as no_left_turn vs
only_right_turn?</div>
<div><br>
</div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Fri, Jun 12,
2015 at 8:41 AM, dos65 <span
dir="ltr"><<a
moz-do-not-send="true"
href="mailto:qtankle@gmail.com"
target="_blank">qtankle@gmail.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote"
style="margin:0 0 0
.8ex;border-left:1px #ccc
solid;padding-left:1ex">
<div bgcolor="#FFFFFF"
text="#000000"> Hi Nick. <br>
Restrictions must have
members(from, to). In your case
restriction don't have them and it
does not processed by gh.
<div>
<div><br>
<br>
<br>
<div>On 12.06.2015 16:29, Nick
Bauer wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">Hi Peter-
<div><br>
</div>
<div>Sorry for the delay.
Please see:</div>
<div><a
moz-do-not-send="true"
href="https://graphhopper.com/maps/?point=41.616854%2C-88.122497&point=41.616365%2C-88.123473&locale=en-US&layer=Lyrk"
target="_blank">https://graphhopper.com/maps/?point=41.616854%2C-88.122497&point=41.616365%2C-88.123473&locale=en-US&layer=Lyrk</a></div>
<div><br>
</div>
<div>OSM data has a turn
restriction setup where
you can only turn right,
however GH shows a left
turn.</div>
<div>OSM data uses a
single node with
restriction:no_left_turn</div>
<div><br>
</div>
<div>Is this a sufficient
relation? What is
required for GH to
consider turn
restrictions?</div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On
Thu, Jun 4, 2015 at 5:14
AM, Peter <span
dir="ltr"><<a
moz-do-not-send="true"
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">
<div bgcolor="#FFFFFF"
text="#000000">
<div>Hi,<span><br>
<br>
> however I
am not getting
the results I
expect.<br>
<br>
</span> what
result do you
expect? Please be
more specific e.g.
also include some
coordinates or
screenshots and
then describe the
problem you have
:)<br>
<br>
Regards,<br>
Peter
<div>
<div><br>
<br>
<br>
On 04.06.2015
02:02, Nick
Bauer wrote:<br>
</div>
</div>
</div>
<blockquote
type="cite">
<div>
<div>
<div dir="ltr">Hello-
<div><br>
</div>
<div>After
reviewing the
0.4 list of
changes, it
seems to me
that turn
restrictions
are enabled.
I have what i
believe is the
correct OSM as
well as
config.properties
file, however
I am not
getting the
results I
expect.</div>
<div><br>
</div>
<div>I am
mobile right
now, so I
can't post any
detailed
output, but
here is the
config:</div>
<div><br>
</div>
<div>
<div>prepare.chWeighting=no</div>
<div>prepare.chShortcuts=no</div>
<div>osmreader.acceptWay=car</div>
<div>graph.flagEncoders=car</div>
<div><br>
</div>
<div># Enable
turn
restrictions
for car or
motorcycle.</div>
<div>#
Currently you
need to
additionally
set
prepare.chWeighting=no
before using
this (see
below and
#270)</div>
<div>graph.flagEncoders=car|turnCosts=true</div>
</div>
<div>graph.dataaccess=RAM_STORE<br>
</div>
<div><br>
</div>
<div>How does
this config
look?</div>
<div>My OSM
has to from
and via
relation
elements. Any
other tips on
how to
correctly
create the
OSM?</div>
<div><br>
</div>
<div>Thanks,</div>
<div>Nick</div>
</div>
<br>
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