Hi,
In addition to what Jurijsy suggested you can also use gdaldem. You can access 
this in QGIS by selecting Raster from the toolbar and the selecting Analysis 
and Grid Nearest Neighbour. If using Windows and an OSGeo4W install, you can 
utilise the OSGeo4W Shell to run the same command via command line.
Regards,

Richard



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From: Qgis-user <[email protected]> On Behalf Of Micha Silver
Sent: 08 September 2021 14:04
To: Jurijs Kondratenko <[email protected]>; [email protected]
Subject: Re: [Qgis-user] How to replicate ARC-GIS Natural Neighbour 
Interpolation Algorithm in QGIS / DTM from elevation points

If your'e willing to try GRASS GIS, then the module v.surf.nnbathy should help.
https://grass.osgeo.org/grass78/manuals/addons/v.surf.nnbathy.html


On 9/8/21 11:08 AM, Jurijs Kondratenko wrote:
Hi, I'm building a DTM from random points (with different distances in between) 
and I like ArcGIS Natural Neighbour algorithm for doing so.
Is there any way to replicate it in QGIS? 
https://pro.arcgis.com/en/pro-app/latest/tool-reference/spatial-analyst/how-natural-neighbor-works.htm
Alternatively, what would be a way to constructing DTM from points, preserving 
the original points in respective pixels?
Thank you!
Jurijs Kondratenko
Riga Technical University





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Ben Gurion Univ.

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