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<p>It should be noted that (for Nodes) id + version is actually
stable (Ways and Relations are more complicated).</p>
<p>So if you have id + version, you can</p>
<p>- check that it is the current version of the object (all fine
and dandy)</p>
<p>- check if there is a later (undeleted) version, check if it
(depending on your criteria) is still the "same object", update
version in your reference</p>
<p>- if the last version is deleted or your criteria for it being
the same object doesn't hold, search in the vicinity for a
replacement object.</p>
<p>Doing the same for Ways and Relations requires including a
location reference of some kind as geometry changes are not
reflected in the versions, but can work in principle the same.<br>
</p>
<p>Simon<br>
</p>
<div class="moz-cite-prefix">Am 19.05.2020 um 09:43 schrieb European
Water Project:<br>
</div>
<blockquote type="cite"
cite="mid:CAK=tSVdarWFQLUZPVEQQdSf0imNwhzZ1GMZ0EXmsEkM34r_MTQ@mail.gmail.com">
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<div dir="ltr">Dear All,
<div>
<div><br>
</div>
<div>I am looking for a way to create permanent links to
specific objects (fountains and cafés) with images within
our application ... and I have a couple of questions. <br>
<div><br>
</div>
<div>How quickly do OSM node and ways numbers mutate ? What
percentage should I expect to change each year. If the
percentage of ids mutates slowly enough .. maybe this is
still the best bad short term option ? </div>
<div><br>
</div>
<div>I was pointed to this wiki : </div>
<div><a
href="https://wiki.openstreetmap.org/wiki/Permanent_ID"
moz-do-not-send="true">https://wiki.openstreetmap.org/wiki/Permanent_ID</a> </div>
<div><br>
</div>
<div>On the discussion page, it is mentioned that a solution
is being targeted for end 2020 . Will there be a tool to
translate actual osm node and ways numbers to the new
permalink ids. </div>
<div><br>
</div>
<div>Apparently Mangrove uses GEO URI to create perma
links towards objects. <a
href="https://en.wikipedia.org/wiki/Geo_URI_scheme"
moz-do-not-send="true">https://en.wikipedia.org/wiki/Geo_URI_scheme</a>.
How do they deal with node repositioning ? I could create
a link name with first 5 latitude num followed by first 5
longitude num... but as soon as someone moves the node I
would get a broken link... </div>
<div><br>
</div>
<div>Thanks for your help and advice</div>
<div><br>
</div>
<div>Best regards,</div>
<div><br>
</div>
<div>Stuart </div>
<div><br>
</div>
<div><br>
</div>
</div>
</div>
</div>
<br>
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<pre class="moz-quote-pre" wrap="">_______________________________________________
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