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<div class="moz-cite-prefix">On 6/12/22 06:39, Mike Thompson wrote:<br>
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cite="mid:CALJoUktTQ6cT=b-uvN88jPBVRMco-zeg56=o8o_hOSNQY2uzKQ@mail.gmail.com">
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<div dir="ltr" class="gmail_attr">On Mon, Dec 5, 2022 at 11:22
AM Minh Nguyen via talk <<a
href="mailto:talk@openstreetmap.org"
moz-do-not-send="true" class="moz-txt-link-freetext">talk@openstreetmap.org</a>>
wrote:<br>
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rgb(204,204,204);padding-left:1ex">Vào lúc 09:55 2022-12-05,
Zeke Farwell đã viết:<br>
> That is a good summary, though "Once the OSM available
satellite imagery <br>
> does not show the feature"</blockquote>
<div>1) There are other sources that an armchair mapper can
use other than imagery, such as the Strava Global Heatmap,
the USGS 3 DEP data (in the US), and GPX data that has been
uploaded to the OSM server.</div>
<div>2) The term "satellite imagery" also excludes street
level imagery, such as Mapillary</div>
<div>3) Technically some of the imagery we refer to as
"satellite" is really "aerial." </div>
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<div>"Once the feature truly no longer exists and is no longer
evident in any of the available remote sources commonly used
to edit OSM, including overhead imagery
(satellite/aerial/drone), street level imagery (e.g.
Mapillary), GPS traces/heatmaps (e.g. Strava), and elevation
data (e.g. USGS 3DEP) the feature can be deleted"</div>
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<p>I have abbreviated the above to be;<br>
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<p>"The following tags function is to reduce the possibility of a
mapper remapping the feature from existing available sources used
to edit OSM, e.g. satellite or aerial imagery, that shows the old
state of the feature. Once the OSM available sources do not show
the feature, the feature can safely be removed from OSM. Renders
cannot rely on OSM preserving physically vanished history. "</p>
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<p>I don't want to use too many words .. so as not to obscure the
basic intention. Listing all the possible sources is not
necessary... <br>
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