<div dir="ltr">Hi Kirk,<div><br></div><div>Indeed, converting to vector and styling it using rule-based styling is an option. Having contour renderer for raster will avoid extra processing and data conversion.</div><div>With contour rendering of raster, you can also use "Resampling" for creating smooth contours on the fly.</div><div><br></div><div>@Azzura, unfortunately, labelling is not available at the moment for raster contour renderer. We may add it in future releases. For labeling vector contours, I recommend using this nice trick:</div><div><a href="https://twitter.com/totofiandaca/status/1222982773532712960">https://twitter.com/totofiandaca/status/1222982773532712960</a><br></div><div><a href="https://pigrecoinfinito.com/2020/01/31/qgis-come-allineare-le-etichette-delle-isoipse/">https://pigrecoinfinito.com/2020/01/31/qgis-come-allineare-le-etichette-delle-isoipse/</a><br></div><div><br></div><div>Kind regards</div><div>Saber</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, 3 Mar 2021 at 18:28, Kirk Schmidt <<a href="mailto:kirk@nortekresources.com">kirk@nortekresources.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">
<div>
<p>Hi Saber:</p>
<p>You can do this directly in symbology. See link below, Use Rule
Based Symbology and "Elev" % 100= 0 to separate all the contours
that are multiples of 100. Set your line symbols and you should
be good to go.<br>
</p>
<p><a href="https://gis.stackexchange.com/questions/259875/styling-contours-at-specific-numbers" target="_blank">https://gis.stackexchange.com/questions/259875/styling-contours-at-specific-numbers</a></p>
<p><br>
</p>
<p>Kirk Schmidt<br>
</p>
<div>On 3/3/2021 2:15 PM, Saber Razmjooei
wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">
<div dir="ltr">Hi Azzurra,
<div><br>
</div>
<div>You can use Raster styling to display it as contours with
minor and major contours:</div>
<div><a href="https://www.qgis.org/en/site/forusers/visualchangelog314/index.html#feature-raster-layer-contour-renderer" target="_blank">https://www.qgis.org/en/site/forusers/visualchangelog314/index.html#feature-raster-layer-contour-renderer</a><br>
</div>
<div><br>
</div>
<div>Kind regards</div>
<div>Saber</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Wed, 3 Mar 2021 at 18:01,
Azzurra Lentini <<a href="mailto:azzurralentini@gmail.com" target="_blank">azzurralentini@gmail.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote">
<div dir="ltr">
<div>
<p class="MsoNormal"><span lang="EN-GB">Hi to all,</span></p>
<p class="MsoNormal"><span lang="EN-GB">I have
extracted contours from a dtm raster 20 m resolution
file and the result is a
vector file of contours with 20 m of interval
between the contours. </span></p>
<p class="MsoNormal"><span lang="EN-GB">I would
like to have two different symbols for these
contours: for example black colour
and thickness 1 for the contours with interval of
100 m (0, 100, 200, 300 etc.)
and grey colour and thickness 0.5 for the contours
20, 40, 60, 80, 120, 140 ..
etc.).</span></p>
<p class="MsoNormal"><span lang="EN-GB">What can I
do? </span></p>
<p class="MsoNormal"><span lang="EN-GB">Normally I
create another contours file only for the contours
equidistant 100 m and I put
a different symbol for the 2 layers. </span></p>
<p class="MsoNormal"><span lang="EN-GB">Do you know
other ways without the creation of another file?
maybe rule-based symbology?</span></p>
<p class="MsoNormal"><span><br>
</span></p>
<p class="MsoNormal"><span>Thank you, Azzurra </span></p>
</div>
<div><br>
</div>
-- <br>
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<div dir="ltr">
<div dir="ltr">
<div dir="ltr">
<div dir="ltr">
<div dir="ltr">
<div dir="ltr">
<div dir="ltr">Lecturer GIS University "Roma
Tre"<br>
</div>
<div dir="ltr">Consultant Environmental Risk
Prevention and Hydrogeology<br>
AZZURRA LENTINI </div>
<div dir="ltr">++++++++++++++++++++++++++<br>
Italy Mobile Tel.: **(39) 338 24 40 676<br>
++++++++++++++++++++++++++<br>
SKYPE azzurrahydro<br>
++++++++++++++++++++++++++</div>
<div>
<p class="MsoNormal"><b><u><span><a href="mailto:azzurralentini@gmail.com" target="_blank">azzurralentini@gmail.com</a></span></u></b></p>
<p class="MsoNormal"><b><u><span><a href="mailto:azzurra.lentini@uniroma3.it" target="_blank">azzurra.lentini@uniroma3.it</a> </span></u></b><b><u><span> </span></u></b><br>
</p>
</div>
<div dir="ltr">++++++++++++++++++++++++++<br>
*Par respect pour l'environnement,*<br>
<br>
*n'imprimez ce mail qu'en cas d'absolue
nécessité*</div>
</div>
<div dir="ltr"> <br>
<br>
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<div dir="ltr">
<div>
<div dir="ltr">
<div>
<div dir="ltr">
<div>
<div dir="ltr">
<div>
<div dir="ltr">Saber Razmjooei<br>
</div>
<div><a href="http://www.lutraconsulting.co.uk" target="_blank">www.lutraconsulting.co.uk</a><br>
<br>
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<pre cols="72">--
Kirk Schmidt, MScF, BScF, RPF
General Manager
Nortek Resource Solutions Inc.
RR # 1
Thorburn, NS
B0K 1W0
Tel (902) 922.3607
Email: <a href="mailto:kirk@nortekresources.com" target="_blank">kirk@nortekresources.com</a>
Web: <a href="http://www.nortekresources.com" target="_blank">www.nortekresources.com</a></pre>
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</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr">Saber Razmjooei<br></div><div><a href="http://www.lutraconsulting.co.uk" target="_blank">www.lutraconsulting.co.uk</a><br><span>+44 (0)7568 129733</span><br></div></div></div></div></div></div></div></div></div></div>