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<p>Hello Manon.</p>
<p>If I understand your issue, you are clipping a digital terrain
model and the resulting raster is very course. If you use the
'Raster>Extraction>Clip Raster by Mask Layer' tool, you can
define the resolution of the clipped raster. You can select 'Keep
resolution of input raster' or define it in the x and y
direction. (see screen shot below).</p>
<p>Kirk Schmidt<br>
</p>
<img src="cid:part1.00kvj60s.V5zzO0op@nortekresources.com" alt="">
<p></p>
<p></p>
<div class="moz-cite-prefix">On 2/4/2026 12:29 PM, Manon Van Poucke
via QGIS-User wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAO0N7UjrkHR8E44zTWm-j_6Cwnwd54bVVMAMas2DtgZz9N_=_w@mail.gmail.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<div dir="ltr">
<div>Hello !</div>
<div><br>
</div>
<div>I'have not a good English, I hope you can understand me !</div>
<div><br>
</div>
<div>I work with QGIS 3.44.</div>
<div><br>
</div>
<div>I work with a digital terrain model like this : (I explain
below!)</div>
<div><br>
</div>
<div><img src="cid:part2.ZPyIuc0z.JY4t1lJA@nortekresources.com"
alt="image.png" class="" width="556" height="460"><br>
<br>
</div>
<div><br>
</div>
<div>With that, i create a new layer raster, this :</div>
<div><br>
</div>
<div><img src="cid:part3.wmAJT5tY.vswkZHG0@nortekresources.com"
alt="image.png" class="" width="556" height="428"><br>
<br>
</div>
<div>But I don't know how 😅</div>
<div><br>
</div>
<div>If I transform the raster in the layer and after vecteur in
the raster. I know I didn't use mesh or grid. And I know
It wasn't difficult. </div>
<div><br>
</div>
<div>But it's impossible for me to recreate this !!</div>
<div><br>
</div>
<div>I like this layer because the relief curves are very good !</div>
<div><br>
</div>
<div>It has 50x50 pixels. </div>
<div><br>
</div>
<div>And a ladder is not similar.</div>
<div><br>
</div>
<div>The first picture is between 300-500 and a second is
100-200. But I don't choose it.</div>
<div><br>
</div>
<div>If you understand my problem, I have little question, so
what layer has a good altitude ?</div>
<div><br>
</div>
<div>Can you help me please ! This is so amazing !</div>
<div><br>
</div>
<div>Have a good day !</div>
</div>
<br>
<fieldset class="moz-mime-attachment-header"></fieldset>
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</blockquote>
<pre class="moz-signature" cols="72">--
Kirk Schmidt, MScF, BScF, RPF
General Manager
Nortek Resource Solutions Inc.
26 Church Road
Sutherlands River, NS
B0K 1W0
Tel (902) 922.3607
Email: <a class="moz-txt-link-abbreviated" href="mailto:kirk@nortekresources.com">kirk@nortekresources.com</a>
Web: <a class="moz-txt-link-abbreviated" href="http://www.nortekresources.com">www.nortekresources.com</a></pre>
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