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Multiplying rasters by integers in processing modeler
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I need to multiply several rasters by integers as a part of a multiple steps process. For this reason I'm using QGIS' Processing Modeler.
I'm looking for something similar to the Raster calculator, but it doesn't seem to be available from the Processing Modeler.
I've also tried to use the GRASS r.mapcalculator algorithm (with A my input raster layer, and applying the formula A*100 for example), but it always returns the following error message:
Oooops! The following output layers could not be open
Output raster layer: /tmp/processing/ad0f2935615a472eb6b6b6feb44f3e72/outfile.tif
qgis qgis-modeler
edited Oct 28 '18 at 12:34
underdark♦
69k13178346
asked Jan 22 '18 at 21:34
VincentNVincentN
382
bumped to the homepage by Community♦ 2 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
add a comment |
I need to multiply several rasters by integers as a part of a multiple steps process. For this reason I'm using QGIS' Processing Modeler.
I'm looking for something similar to the Raster calculator, but it doesn't seem to be available from the Processing Modeler.
I've also tried to use the GRASS r.mapcalculator algorithm (with A my input raster layer, and applying the formula A*100 for example), but it always returns the following error message:
Oooops! The following output layers could not be open
Output raster layer: /tmp/processing/ad0f2935615a472eb6b6b6feb44f3e72/outfile.tif
qgis qgis-modeler
edited Oct 28 '18 at 12:34
underdark♦
69k13178346
asked Jan 22 '18 at 21:34
VincentNVincentN
382
bumped to the homepage by Community♦ 2 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
add a comment |
I need to multiply several rasters by integers as a part of a multiple steps process. For this reason I'm using QGIS' Processing Modeler.
I'm looking for something similar to the Raster calculator, but it doesn't seem to be available from the Processing Modeler.
I've also tried to use the GRASS r.mapcalculator algorithm (with A my input raster layer, and applying the formula A*100 for example), but it always returns the following error message:
Oooops! The following output layers could not be open
Output raster layer: /tmp/processing/ad0f2935615a472eb6b6b6feb44f3e72/outfile.tif
qgis qgis-modeler
edited Oct 28 '18 at 12:34
underdark♦
69k13178346
asked Jan 22 '18 at 21:34
VincentNVincentN
382
I need to multiply several rasters by integers as a part of a multiple steps process. For this reason I'm using QGIS' Processing Modeler.
I'm looking for something similar to the Raster calculator, but it doesn't seem to be available from the Processing Modeler.
I've also tried to use the GRASS r.mapcalculator algorithm (with A my input raster layer, and applying the formula A*100 for example), but it always returns the following error message:
Oooops! The following output layers could not be open
Output raster layer: /tmp/processing/ad0f2935615a472eb6b6b6feb44f3e72/outfile.tif
qgis qgis-modeler
qgis qgis-modeler
edited Oct 28 '18 at 12:34
underdark♦
69k13178346
asked Jan 22 '18 at 21:34
VincentNVincentN
382
edited Oct 28 '18 at 12:34
underdark♦
69k13178346
asked Jan 22 '18 at 21:34
VincentNVincentN
382
edited Oct 28 '18 at 12:34
underdark♦
69k13178346
edited Oct 28 '18 at 12:34
underdark♦
69k13178346
edited Oct 28 '18 at 12:34
underdark♦
69k13178346
69k13178346
asked Jan 22 '18 at 21:34
VincentNVincentN
382
asked Jan 22 '18 at 21:34
VincentNVincentN
382
asked Jan 22 '18 at 21:34
VincentNVincentN
382
382
bumped to the homepage by Community♦ 2 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
bumped to the homepage by Community♦ 2 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
You can use Raster Product. In the captured image, Constant grid will create a raster layer with cell values defined in the Value input. Then Raster product will multiply Input Raster and Constant grid raster.
(1) SAGA | Raster tools | Constant grid
(2) SAGA | Raster calculus | Raster product
answered Jan 31 '18 at 17:15
KazuhitoKazuhito
16.2k41884
add a comment |
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1 Answer
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You can use Raster Product. In the captured image, Constant grid will create a raster layer with cell values defined in the Value input. Then Raster product will multiply Input Raster and Constant grid raster.
(1) SAGA | Raster tools | Constant grid
(2) SAGA | Raster calculus | Raster product
answered Jan 31 '18 at 17:15
KazuhitoKazuhito
16.2k41884
add a comment |
You can use Raster Product. In the captured image, Constant grid will create a raster layer with cell values defined in the Value input. Then Raster product will multiply Input Raster and Constant grid raster.
(1) SAGA | Raster tools | Constant grid
(2) SAGA | Raster calculus | Raster product
answered Jan 31 '18 at 17:15
KazuhitoKazuhito
16.2k41884
add a comment |
You can use Raster Product. In the captured image, Constant grid will create a raster layer with cell values defined in the Value input. Then Raster product will multiply Input Raster and Constant grid raster.
(1) SAGA | Raster tools | Constant grid
(2) SAGA | Raster calculus | Raster product
answered Jan 31 '18 at 17:15
KazuhitoKazuhito
16.2k41884
You can use Raster Product. In the captured image, Constant grid will create a raster layer with cell values defined in the Value input. Then Raster product will multiply Input Raster and Constant grid raster.
(1) SAGA | Raster tools | Constant grid
(2) SAGA | Raster calculus | Raster product
answered Jan 31 '18 at 17:15
KazuhitoKazuhito
16.2k41884
answered Jan 31 '18 at 17:15
KazuhitoKazuhito
16.2k41884
answered Jan 31 '18 at 17:15
KazuhitoKazuhito
16.2k41884
answered Jan 31 '18 at 17:15
KazuhitoKazuhito
16.2k41884
16.2k41884
add a comment |
add a comment |
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