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<p>you can use the processingtool pdal:exportrastertin to generate a
raster which can be used to drape your profile lines</p>
<p>best regards</p>
<p>Stefan</p>
<p></p>
<div class="moz-cite-prefix">Am 24.07.2024 um 08:29 schrieb Roland
Spielhofer via QGIS-User:<br>
</div>
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cite="mid:trinity-aa1ddf20-6e22-4dfc-b877-6a3c62697c21-1721802585169@3c-app-gmx-bs18">
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<div>Thanks for clarifying!</div>
<div>I opened an issue:</div>
<div><a class="moz-txt-link-freetext" href="https://github.com/qgis/QGIS/issues/58229">https://github.com/qgis/QGIS/issues/58229</a></div>
<div> </div>
<div>Meanwhile I will try to drape the profiles (atlas features)
on the surface and calculate the range by expression - the
profiles cross a road, so I expect the results to be usable,
but there will be an arbitrary cut in the z-range. Some
profiles will look good, some not, e.g. when a tree is next to
the road.</div>
<div>Draping on point clouds is currently also not possible in
QGIS (only on raster) - I have a different software for that.</div>
<div>
<div>
<div>Regards,</div>
<div>Roland</div>
<div> </div>
<div name="quote"
style="margin:10px 5px 5px 10px; padding: 10px 0 10px 10px; border-left:2px solid #C3D9E5; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;">
<div style="margin:0 0 10px 0;"><b>Gesendet:</b> Mittwoch,
24. Juli 2024 um 00:56 Uhr<br>
<b>Von:</b> "Nyall Dawson"
<a class="moz-txt-link-rfc2396E" href="mailto:nyall.dawson@gmail.com"><nyall.dawson@gmail.com></a><br>
<b>An:</b> "Roland Spielhofer" <a class="moz-txt-link-rfc2396E" href="mailto:rspiel@gmx.net"><rspiel@gmx.net></a><br>
<b>Cc:</b> "QGIS User" <a class="moz-txt-link-rfc2396E" href="mailto:qgis-user@lists.osgeo.org"><qgis-user@lists.osgeo.org></a><br>
<b>Betreff:</b> Re: [Qgis-user] Auto-adjust profile
elevation range in Atlas</div>
<div name="quoted-content">On Tue, 23 Jul 2024 at 20:29,
Roland Spielhofer via QGIS-User<br>
<a class="moz-txt-link-rfc2396E" href="mailto:qgis-user@lists.osgeo.org"><qgis-user@lists.osgeo.org></a> wrote:<br>
><br>
> Hi,<br>
> I have a corridor point cloud and a number of cross
profiles (linestrings) in my QGIS project.<br>
> I would like to make an Atlas that shows a cross
section of the pointcloud along every profile.<br>
> So far, so good.<br>
> What I am struggling with is that the elevation
range seems to be fixed in all atlas elements so that I
see the point cloud on some atlas items where the
elevation range matches the point cloud while some items
are blank as the point cloud is too high/too low for the
elevation range of the elevation profile item.<br>
><br>
> Is there a way to auto-adjust the z-range per atlas
item so that the full z-range of the profile is always
shown? The elevation profile panel in the main window
does exactly this as default behaviour.<br>
<br>
There's no direct option for "auto scale" as of QGIS
3.38. There's<br>
definitely potential here for implementing that in a
future QGIS<br>
version!<br>
<br>
One potential solution you could use in current releases
would be to<br>
take advantage of the data-defined control over the
minimum/maximum<br>
elevation in the layout item, so that each page in the
atlas can have<br>
a different elevation range. You could either set this
to a field and<br>
prepopulate each feature with manually entered min/max
elevation<br>
values, or potentially use some fancy QGIS expression
magic to<br>
dynamically pick a range based on other existing atlas
feature<br>
fields/geometry...!<br>
<br>
Nyall<br>
<br>
<br>
><br>
> Regards,<br>
> Roland<br>
> _______________________________________________<br>
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