2.2.69. Raster calculator (GRASS)

The tool allows calculations with single band rasters. The tool is based on r.mapcalc.

Input:

  • A – obligatory field. Single band GDAL supported raster, e.g. GeoTIFF.

  • B – optional field. Single band GDAL supported raster.

  • C – optional field. Single band GDAL supported raster.

  • D – optional field. Single band GDAL supported raster.

  • E – optional field. Single band GDAL supported raster.

  • F – optional field. Single band GDAL supported raster.

  • G – optional field. Single band GDAL supported raster.

  • H – optional field. Single band GDAL supported raster.

  • Expression – obligatory field. Use arithmetic (+, -, /, * etc.) or logical (>, == etc.) operators, as well as functions (log(x), if(x) etc.) to build an expression. The whole list is available here. Variables (rasters) should be specified as A, B, C etc. An example of expression: (A+B)/C

Output:

  • GeoTIFF file with a result of calculation.

Launch the tool: https://toolbox.nextgis.com/operation/r_mapcalc

Try it out using our sample:

Download input dataset to test the instrument. Step-by-step instructions included.

Get the output to additionally check the results.