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<p>The previous versions of the page in particular the one that was
actually voted on (in 2007) does -not- have that reference, see
also <a class="moz-txt-link-freetext" href="https://wiki.openstreetmap.org/wiki/Talk:Key:ele">https://wiki.openstreetmap.org/wiki/Talk:Key:ele</a> for
discussion on the issue back to 2007.<br>
</p>
<p>As to the original page being German, well that 2007 is the time
the German speaking community discovered OSM and started what
actually turned it in to a success. Pretending that things didn't
happen because they were originally in German at the time, is
negating large bits of OSMs history. <br>
</p>
<p>Simon<br>
</p>
<div class="moz-cite-prefix">Am 04.05.2020 um 12:04 schrieb Martin
Koppenhoefer:<br>
</div>
<blockquote type="cite"
cite="mid:CABPTjTBE=Boc1qdOVP0WFaBoXZ=b=6r8R0wLT-nMowUuruk=7A@mail.gmail.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<div dir="ltr">
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">Am Mo., 4. Mai 2020 um
10:50 Uhr schrieb Simon Poole <<a
href="mailto:simon@poole.ch" moz-do-not-send="true">simon@poole.ch</a>>:</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">
<div class="gmail_attr">Historically the understanding was
that ele would use "height above the<br>
ellipsoid", there is some reasoning on the Altitude page,
might have<br>
made sense originally. In 2013 the ele entry was fiddled
to point to the<br>
height above geoid.</div>
</blockquote>
<div><br>
</div>
<div><br>
</div>
<div>in 2013 the altitude page was not really created yet,
there was only a page in German which hardly can be seen as
relevant for the global project. The "key:ele" page already
referred to the geoid rather than the ellipsoid in September
2008, as it said "height above sea level": <br>
</div>
<div dir="ltr" class="gmail_attr"><a
href="https://wiki.openstreetmap.org/w/index.php?title=Key:ele&direction=next&oldid=125595"
moz-do-not-send="true">https://wiki.openstreetmap.org/w/index.php?title=Key:ele&direction=next&oldid=125595</a></div>
<div dir="ltr" class="gmail_attr">"Elevation (height above sea
level) of a point in metres."</div>
<div dir="ltr" class="gmail_attr"><br>
</div>
<div dir="ltr" class="gmail_attr">
<div>Generally, the "altitude" term does not seem to catch
it at all, it appears to mean a height _above_ ground,
while with the "ele" tag and variations we are aiming at
recording the actual ground elevation.</div>
</div>
<div dir="ltr" class="gmail_attr"><br>
</div>
<div dir="ltr" class="gmail_attr"><br>
</div>
<div dir="ltr" class="gmail_attr"><br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">This leaves us with<br>
<br>
a) conflicting definitions in the wiki (not the first time)<br>
<br>
b) a tag de-facto redefined after multiple years of use
(natural=tree<br>
anybody?)<br>
</blockquote>
<div><br>
</div>
<div><br>
</div>
<div>not really comparable, because "a tree" is very clear, "a
ground elevation" isn't (because it refers to a reference
which isn't given)</div>
<div><br>
</div>
<div> </div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">
<br>
Naturally the correct way to solve the issue would have been
to<br>
introduce a new tag with the appropriate semantics and then
let ele die<br>
out. Given that the mess has already happened it could be
argued that we<br>
might as well use ele with the semantics that have been
proposed for<br>
ele:regional, because that is what it "mostly"* has been
used for.<br>
</blockquote>
<div><br>
</div>
<div><br>
</div>
<div>this would mean repeating the same mistake as 2013,
continue to use the same tag for which it was already
discovered that the values are referring to different
references (well knowing, that not all values refer to the
definition, some are referring to the WGS84 ellipsoid, some
are referring to a geoid)<br>
</div>
<div><br>
</div>
<div><br>
</div>
<div>Cheers</div>
<div>Martin<br>
</div>
</div>
</div>
<br>
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<pre class="moz-quote-pre" wrap="">_______________________________________________
Tagging mailing list
<a class="moz-txt-link-abbreviated" href="mailto:Tagging@openstreetmap.org">Tagging@openstreetmap.org</a>
<a class="moz-txt-link-freetext" href="https://lists.openstreetmap.org/listinfo/tagging">https://lists.openstreetmap.org/listinfo/tagging</a>
</pre>
</blockquote>
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