<div dir="ltr">Hi Peter,<div><br></div><div>I am still confused.</div><div>at first we call </div><div><span style="color:rgb(0,0,0);font-family:Menlo;font-size:16px">map = findSubnetworks();</span><br></div><div><span style="color:rgb(0,0,0);font-family:Menlo;font-size:16px"><br></span></div><div><span style="color:rgb(0,0,0);font-family:Menlo;font-size:16px">after the cleanup, we call the same method in Graphhopper.</span></div><div><pre style="color:rgb(0,0,0);font-family:Menlo;font-size:12pt"><span style="color:#000080;font-weight:bold">int </span>remainingSubnetworks = preparation.findSubnetworks().size();</pre><pre style="color:rgb(0,0,0);font-family:Menlo;font-size:12pt"><br></pre><pre style="color:rgb(0,0,0);font-family:Menlo;font-size:12pt">Why the subnetwork was recognized the latter time, but not the first time?</pre><pre style="color:rgb(0,0,0);font-family:Menlo;font-size:12pt">we remove some edges make it not connected?</pre></div></div><div class="gmail_extra"><br clear="all"><div><div class="gmail_signature"><b>Best Regards,</b><div><b>ZhiQiang ZHAO</b></div></div></div>
<br><div class="gmail_quote">On Thu, Jul 23, 2015 at 2:22 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">
<br>
<div bgcolor="#FFFFFF" text="#000000">
Hi ZhiQiang,<br>
<br>
yes, according to the wiki this is wrongly mapped:<br>
<i> Avoid tagging highway intersections as that does not make clear
which way has the impediment.
</i><br>
<br>
<a href="http://wiki.openstreetmap.org/wiki/Tag:barrier%3Dgate" target="_blank">http://wiki.openstreetmap.org/wiki/Tag:barrier%3Dgate</a><span class="HOEnZb"><font color="#888888"><br>
<br>
Peter</font></span><div><div class="h5"><br>
<br>
<div>On 23.07.2015 23:16, John Zhao wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">Hi Peter,
<div><br>
</div>
<div>Maybe the following one related with <a href="https://github.com/graphhopper/graphhopper/issues/388#issuecomment-88066385" target="_blank">https://github.com/graphhopper/graphhopper/issues/388#issuecomment-88066385</a> </div>
<div><br>
</div>
<div>
<div style="font-size:12.8000001907349px">I have a look
at 37.32611992939085,-121.9961998312816.</div>
<div style="font-size:12.8000001907349px">It seesm related
with barrier=gate at intersection.</div>
<div style="font-size:12.8000001907349px"><a href="http://www.openstreetmap.org/node/1126492194" target="_blank">http://www.openstreetmap.org/node/1126492194</a></div>
</div>
</div>
<div class="gmail_extra"><br clear="all">
<div>
<div><b>Best Regards,</b>
<div><b>ZhiQiang ZHAO</b></div>
</div>
</div>
<br>
<div class="gmail_quote">On Thu, Jul 23, 2015 at 2:11 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"> <br>
<div bgcolor="#FFFFFF" text="#000000"> There are two types
of subnetworks and the smaller ones seems to be 'one-way
subnetworks' which means they are eg. only reachable as
destination or start. But if you would start from a
destination-only subnetwork you'll get 'not found' for all
points outside of this network.<br>
<br>
Regards,<br>
Peter
<div>
<div><br>
<br>
<div>On 23.07.2015 23:03, John Zhao wrote:<br>
</div>
</div>
</div>
<blockquote type="cite">
<div>
<div>
<div dir="ltr">Interesting,
<div>when I increase <span style="font-size:12.8000001907349px">minOnewayNetworkSize
from 20 to 50, the following two disappeared.</span></div>
<div>
<div style="font-size:12.8000001907349px">subnetwork
start from:
37.32611992939085,-121.9961998312816 size: 24</div>
<div style="font-size:12.8000001907349px"><span style="font-size:12.8000001907349px">subnetwork
start from: 37.78373608999855,-122.</span><span style="font-size:12.8000001907349px">25065187925067
size: 34</span></div>
</div>
</div>
<div class="gmail_extra"><br clear="all">
<div>
<div><b>Best Regards,</b>
<div><b>ZhiQiang ZHAO</b></div>
</div>
</div>
<br>
<div class="gmail_quote">On Thu, Jul 23, 2015 at
1:55 PM, John Zhao <span dir="ltr"><<a href="mailto:johnthu@gmail.com" target="_blank">johnthu@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">Hi,
<div><br>
</div>
<div>I tried car flag encoder with following
parameter on San Francisco bay area data
from mapzen.</div>
<div><a href="https://s3.amazonaws.com/metro-extracts.mapzen.com/san-francisco-bay_california.osm.pbf" target="_blank">https://s3.amazonaws.com/metro-extracts.mapzen.com/san-francisco-bay_california.osm.pbf</a></div>
<div><br>
</div>
<div>
<div>minNetworkSize=200</div>
<div>minOnewayNetworkSize=20</div>
<div><br>
</div>
<div>I printed all the remaining
subnetworks.</div>
<div>
<div>edges: 591932, nodes 437420, there
were 3496 subnetworks. removed them
=> 13121 less nodes. Remaining
subnetworks:5</div>
<div>The remaining subnetworks are:</div>
<div>subnetwork start from:
37.32611992939085,-121.9961998312816
size: 24</div>
<div>subnetwork start from:
37.56018439442332,-122.30257814308803
size: 436637</div>
<div>subnetwork start from:
37.78373608999855,-122.25065187925067
size: 34</div>
<div>subnetwork start from:
38.180185962770565,-121.70631393878864
size: 301</div>
<div>subnetwork start from:
37.85717050411933,-122.07633641532816
size: 424</div>
</div>
<div><br>
</div>
<div>I don't understand why there is still
subnetwork less than 200 nodes.</div>
<div><br>
</div>
<div>I have a look
at 37.32611992939085,-121.9961998312816.</div>
<div>It seesm related with barrier=gate at
intersection.</div>
<div><a href="http://www.openstreetmap.org/node/1126492194" target="_blank">http://www.openstreetmap.org/node/1126492194</a><br>
</div>
<div><br>
</div>
<div>
<div>
<div><b>Best Regards,</b>
<div><b>ZhiQiang ZHAO</b></div>
</div>
</div>
</div>
</div>
</div>
</blockquote>
</div>
<br>
</div>
</div>
</div>
</blockquote>
</div>
</blockquote>
</div>
</div>
</blockquote>
<br>
</div></div></div>
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<br></blockquote></div><br></div>