<div dir="ltr"><div dir="ltr">👍<br></div><br><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sun, Apr 28, 2019 at 11:44 AM Joseph Eisenberg <<a href="mailto:joseph.eisenberg@gmail.com">joseph.eisenberg@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">I've added a new section to the Verifiability wiki page about mapping<br>
features with ways or areas when these geometries are not verifiable.<br>
<br>
This has been discussed here several times in the past few months, in<br>
regards to tags like natural=bay, natural=strait, place=*, and<br>
proposals like natural=mesa.<br>
<br>
Please suggest any improvements to the wording or corrections:<br>
<a href="https://wiki.openstreetmap.org/wiki/Verifiability#Geometry" rel="noreferrer" target="_blank">https://wiki.openstreetmap.org/wiki/Verifiability#Geometry</a><br>
<br>
"Linear ways and areas can be non-verifiable if the geometry cannot be<br>
demonstrated to be true or false by another mapper.<br>
<br>
"For example, a valley can be thought to refer to the whole area<br>
between mountain ridges, or only to the flat bottom of the valley. In<br>
this case, drawing the natural=valley as an area will usually not be<br>
verifiable, because two different mappers would draw a very different<br>
geometry for the same feature. Many settlements have non-verifiable<br>
borders, especially in rural areas.<br>
<br>
"A place=hamlet often lacks verifiable borders. Hamlets in farming<br>
areas often have scattered houses and farms extending outward for<br>
several kilometers. In this case the approximate center of the place<br>
may be well-know, but the outer limits are not clearly determined, so<br>
mapping as an area is not verifiable.<br>
<br>
"A natural=ridge can be often be verifiably mapped as a linear way<br>
along the line of the ridge crest. It cannot be verifiably mapped as<br>
an area, because it would not be clear how far down the slopes the<br>
area of the ridge extends.<br>
<br>
"Many features which are not verifiable as ways or areas can be mapped<br>
with a single node near the center of the feature instead. In this<br>
case it can be agreed that this node is within the feature, even<br>
though the outer limits of the feature cannot be precisely<br>
determined."<br>
<br>
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</blockquote></div></div>