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<p>MapWarper is most terrific.</p>
<p>Another instance that might be of use to OSMers is the <a
moz-do-not-send="true" href="https://warper.wmflabs.org/">Wikimedia
one,</a> which allows warping of any map uploaded to Wikimedia
Commons (i.e. has to be public domain or open licensed, so not
100% compatible with OSM). I've done a few. The resulting data can
also be uploaded to <a moz-do-not-send="true"
href="https://openhistoricalmap.org">OHM</a>.</p>
<p><br>
</p>
<div class="moz-cite-prefix">On 7/9/21 3:02 pm, Adam Horan wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAMG2NOyU-ac4vvMvLus7A1wrk4sF-8X35GmE9jExhj8jXybBww@mail.gmail.com">
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<div dir="ltr">"what is it actually doing?"</div>
<div dir="ltr"><br>
</div>
<div>You use it to correct/align old maps to modern maps.
This enables browsing and overlays of old maps onto modern
eg <a
href="https://mapwarper.prov.vic.gov.au/maps/10890#Preview_Rectified_Map_tab"
moz-do-not-send="true">https://mapwarper.prov.vic.gov.au/maps/10890#Preview_Rectified_Map_tab</a> </div>
<div>There's a WMS layer produced that can be shown in JOSM
and others, see <a
href="https://mapwarper.prov.vic.gov.au/maps/10890#Export_tab"
moz-do-not-send="true">https://mapwarper.prov.vic.gov.au/maps/10890#Export_tab</a>
. I've no idea on the legals/copyright involved in
utilising the information on these maps in OSM (even if
data was still relevant all these years later)</div>
<div><br>
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<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Tue, 7 Sept 2021 at 15:36,
Graeme Fitzpatrick <<a href="mailto:graemefitz1@gmail.com"
moz-do-not-send="true">graemefitz1@gmail.com</a>> wrote:<br>
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0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
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<div>Interesting, but what is it actually
doing?<a class="moz-txt-link-freetext" href="https://warper.wmflabs.org/">https://warper.wmflabs.org/</a></div>
<div><br>
</div>
<div>Is that "correcting" the original maps to align with
OSM?</div>
<div><br>
</div>
<div>I'm afraid to say that they have a lot to learn about
explanatory videos, or was it only me that was silent,
& kept dropping in & out of focus!</div>
<div><br>
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<div dir="ltr">
<div dir="ltr">
<div>
<div dir="ltr">Thanks
<div><br>
</div>
<div>Graeme</div>
</div>
</div>
</div>
</div>
</div>
<br>
</div>
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<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Tue, 7 Sept 2021 at
14:59, Adam Horan <<a href="mailto:ahoran@gmail.com"
target="_blank" moz-do-not-send="true">ahoran@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">
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<div dir="ltr">
<div dir="ltr">
<div dir="ltr">As a group of people interested in
Australia, Maps, crowdsourcing and open data,
I'm going to assume you'll also be interested in
Map Warper. It's an online tool allowing
alignment and rectification of old (any really)
maps to reality. <a
href="https://wiki.openstreetmap.org/wiki/MapWarper"
target="_blank" moz-do-not-send="true">https://wiki.openstreetmap.org/wiki/MapWarper</a></div>
<div dir="ltr"><br>
</div>
<div>I've been playing with the version hosted for
Public Records Office Vic at <a
href="https://mapwarper.prov.vic.gov.au/"
target="_blank" moz-do-not-send="true">https://mapwarper.prov.vic.gov.au/</a> </div>
<div>There's 12091 old maps and plans on the site,
some have been rectified, and some await
rectification.</div>
<div><br>
</div>
<div>I've been finding looking at these old maps
absolutely fascinating. You can see which roads
have moved or not, towns that were planned to be
much larger and have shrunk, roads that have
returned to tracks, or disappeared, original
(Aboriginal sounding) place names that have been
retained or lost. You can also appreciate the
skill and accuracy of the surveyors of 100+
years ago, there are coastlines and rivers
mapped in more detail here than in OSM.</div>
<div><br>
</div>
<div>Usability is a bit average, but the content
is interesting.</div>
<div><br>
</div>
<div>Regards,</div>
<div><br>
</div>
<div>Adam</div>
</div>
</div>
</div>
</div>
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<pre class="moz-quote-pre" wrap="">_______________________________________________
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