[Qgis-user] gdal merge

[Nicolas Cadieux]

Hi,

I don’t have a pc or Mac in front of me to test but you have  multiple options if so options are not available in the GUI. One is to create a virtual raster (on pc, the GUI has multiple options) and then to open that layer and save it under another name.  The other is to open a terminal and use gdal_merge directly.

https://gdal.orgprograms/gdal_merge.html

Nicolas Cadieux
https://gitlab.com/njacadieux

> Le 31 janv. 2021 à 15:30, Berndt, Christian <cberndt at geomar.de> a écrit :
> 
> Hello,
> 
> I would like to merge three overlying raster files (highest resolution on top).
> 
> I have looked for online documentation and found a very suitable
> description here: https://docs.qgis.org/3.16/en/docs/training_manual/processing/cutting_merging.html
> 
> Unfortunately, when I open gdal - miscellaneous - merge on my Mac 10.15.7 with qgis 3.16.3
> I do not see the options: interpolation, overlapping cells, and cell size as in the documentation page.
> 
> Do I use the wrong processing tool, is there a version conflict, do I have to install a different gdal
> version, is this an obsolete documentation, or is this a Mac / PC problem?
> 
> Of course I would also be happy to find out other options for merging the grids.
> 
> Best regards,
> Christian
> 
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