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<p class="MsoNormal"><span style="color:#1F497D">Hi, <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">In addition to what Jurijsy suggested you can also use
<b>gdaldem</b>. You can access this in QGIS by selecting <b>Raster</b> from the toolbar and the selecting
<b>Analysis</b> and <b>Grid Nearest Neighbour. </b>If using Windows and an<b> OSGeo4W
</b>install, you can utilise the<b> OSGeo4W Shell </b>to run the same command via command line.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><br>
Richard<b><o:p></o:p></b></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<span style="FONT-FAMILY: Arial, sans-serif; FONT-WEIGHT: bold; COLOR: #004d44"><br>
——</span><br>
<span style="FONT-FAMILY: Arial, sans-serif; FONT-WEIGHT: bold; COLOR: #004d44">Richard McDonnell MSc GIS, FME Certified Professional</span><br>
<span style="FONT-FAMILY: Arial, sans-serif; COLOR: #004d44"><i>FRM Data Management</i></span><br>
<br>
<span style="FONT-FAMILY: Arial, sans-serif; COLOR: #004d44">——</span><br>
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<span style="FONT-FAMILY: Arial, sans-serif; FONT-WEIGHT: bold; COLOR: #565148">Sráid Jonathan Swift, Baile Átha Troim, Co na Mí, C15 NX36
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<span style="FONT-FAMILY: Arial, sans-serif; COLOR: #565148">Jonathan Swift Street, Trim, Co Meath, C15 NX36</span><br>
<span style="FONT-FAMILY: Arial, sans-serif; COLOR: #565148">——</span><br>
<span style="FONT-FAMILY: Arial, sans-serif; COLOR: #565148">M +353 87 688 5964 T +353 46 942 2409</span><br>
<a href="https://gov.ie/opw">https://gov.ie/opw</a><br>
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<span style="FONT-FAMILY: Arial, sans-serif; COLOR: #004d44">——<br>
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<p class="MsoNormal"><b><span lang="EN-US" style="mso-fareast-language:EN-IE">From:</span></b><span lang="EN-US" style="mso-fareast-language:EN-IE"> Qgis-user <qgis-user-bounces@lists.osgeo.org>
<b>On Behalf Of </b>Micha Silver<br>
<b>Sent:</b> 08 September 2021 14:04<br>
<b>To:</b> Jurijs Kondratenko <yurikondratenko@inbox.lv>; qgis-user@lists.osgeo.org<br>
<b>Subject:</b> Re: [Qgis-user] How to replicate ARC-GIS Natural Neighbour Interpolation Algorithm in QGIS / DTM from elevation points<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:13.5pt">If your'e willing to try GRASS GIS, then the module v.surf.nnbathy should help.</span><span style="font-size:12.0pt;mso-fareast-language:EN-IE"><o:p></o:p></span></p>
<p class="MsoNormal"><a href="https://grass.osgeo.org/grass78/manuals/addons/v.surf.nnbathy.html">https://grass.osgeo.org/grass78/manuals/addons/v.surf.nnbathy.html</a><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On 9/8/21 11:08 AM, Jurijs Kondratenko wrote:<o:p></o:p></p>
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<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal">Hi, I’m building a DTM from random points (with different distances in between) and I like ArcGIS Natural Neighbour algorithm for doing so.<o:p></o:p></p>
<p class="MsoNormal">Is there any way to replicate it in QGIS? <a href="https://pro.arcgis.com/en/pro-app/latest/tool-reference/spatial-analyst/how-natural-neighbor-works.htm">
https://pro.arcgis.com/en/pro-app/latest/tool-reference/spatial-analyst/how-natural-neighbor-works.htm</a><o:p></o:p></p>
<p class="MsoNormal">Alternatively, what would be a way to constructing DTM from points, preserving the original points in respective pixels?<o:p></o:p></p>
<p class="MsoNormal">Thank you!<o:p></o:p></p>
<p class="MsoNormal">Jurijs Kondratenko<o:p></o:p></p>
<p class="MsoNormal">Riga Technical University<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif;mso-fareast-language:EN-IE"><br>
<br>
<o:p></o:p></span></p>
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</blockquote>
<pre>-- <o:p></o:p></pre>
<pre>Micha Silver<o:p></o:p></pre>
<pre>Ben Gurion Univ.<o:p></o:p></pre>
<pre>Sde Boker, Remote Sensing Lab<o:p></o:p></pre>
<pre>cell: +972-523-665918<o:p></o:p></pre>
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