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When making a sum between two raster layers, for every cell, if one of the two cells have no data in that cell, the opeartion is not done in that cell, example:

In QGIS raster calculator I do:

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Plus (+)

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And I get:

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The red circle in the middle is like cut in the result, QGIS it's not adding every pixel on each raster, it makes a kind of intersecction...

To try to avoid this, I need to fill every no-data cell in both raster layers with a 0 value. How can i do this in QGIS?

marked as duplicate by Simbamangu, Brad Nesom, whuber Mar 3 '15 at 17:41

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  • Have you tried using the Fill nodata tool from Raster > Analysis > Fill nodata? – Joseph Mar 2 '15 at 13:15
  • Yes, I am not able to configure it to do what I need to... – Egidi Mar 2 '15 at 13:18
  • 1
    Could you edit your question and paste the results of the gdalinfo() command, accessible under "Raster|Miscellaneous|Information..."? – Simbamangu Mar 2 '15 at 14:12

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