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<div class="moz-cite-prefix">Hi,<br>
<br>
should be faily easy. See the ElevationProvider interface. (But
keep in mind that the license of that has to be compatible)<br>
<br>
> (for example when following a disused railway path through a
tunnel, the current implementations default to taking the <br>
> ground surface level for the underground route, rather than a
direct interpolation between the two end points of the tunnel... <br>
<br>
Feel free to provide a PR, there are several enhancements possible
and we need to go step by step.<br>
<br>
Regards,<br>
Peter.<br>
<br>
On 23.07.2014 17:45, D KING wrote:<br>
</div>
<blockquote
cite="mid:1406130355.81880.YahooMailNeo@web87901.mail.ir2.yahoo.com"
type="cite">
<div style="color:#000; background-color:#fff;
font-family:garamond, new york, times, serif;font-size:8pt">
<div>How easy would it be to use alternative data sources for
height map lookup? In particular in the UK we have available
some 50m post spacing open data from Ordnance Survey, which is
much more consistent and reliable than CGIAR or SRTM data
sources.<br>
<br>
<a class="moz-txt-link-freetext" href="https://www.ordnancesurvey.co.uk/business-and-government/products/terrain-50.html">https://www.ordnancesurvey.co.uk/business-and-government/products/terrain-50.html</a><br>
<br>
Also how can tunnels/bridges be handled better (for example
when following a disused railway path through a tunnel, the
current implementations default to taking the ground surface
level for the underground route, rather than a direct
interpolation between the two end points of the tunnel... and
the same point, in reverse applies to elevated routes and
bridges over other roads, rail, rivers etc... (Ideally there
would be a rise over the bridge span, but even a direct
interpolation would be an improvement over dropping to the
valley floor in each span.</div>
<div style="color: rgb(0, 0, 0); font-size: 10.6667px;
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transparent; font-style: normal;"><br>
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<br>
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