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I am a real newbie on QGIS and wanting to draw contour maps from satellite, following the youtube videos. So now I have a table with all data, and following the video, I should use the SAGA tool GRID (natural neighbour) tool but can't find it on the toolbox.

Can anyone help me?

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You may use the simplified interface in Processing toolbox as you can see in the red box below:

enter image description here

You need to change it yo advanced interface, and you find SAGA tools as well as other tools, but you mau need to install the other tools separately:

enter image description here

If turning the interface from simple to advance didn't solve your problem, then make sure that SAGA installed in your system. You can have a look at how to configure external tools in QGIS for more information.

  • thanks a lot. somehow to button to select the type of interface does not show. however, by typing the search for "grid" some grid options show. I will try to follow that... – Joao Serras Pereira May 31 '16 at 14:55
  • I can confirm that the "advanced interface"/"simplified interface" do not show... option – Joao Serras Pereira May 31 '16 at 18:14
  • Try to install QGIS from OSGeo4W from qgis.org/en/site/forusers/download.html. There are 32 bit and 64 bit. You can choose the express desktop installation and follow the steps. Then, see if reinstalling QGIS fixes the processing toolbar. – ahmadhanb Jun 1 '16 at 5:24
  • It took me quite a while as I was absent, in Africa, in a project, and just came out. The SAGA tools now appear with the heading (SAGA 2.1.4 235 algortihms. – Joao Serras Pereira Aug 6 '16 at 13:27
  • It took me quite a while as I was absent, in Africa, in a project, and just came out. However in spite many saga tools show (its version 2.1.4) the grid algorithms do not show – Joao Serras Pereira Aug 6 '16 at 13:29

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