Clipping
The Clipping operation is used to create a subset of the image. It is possible to do this operation in two ways:
Extent: The user defines the envelope (inside the original extent) to crop the raster.
Lower Left X
Lower Left Y
Upper Right X
Upper Right Y
Dimension: The User defines the starting row and column and also sets the height and width to crop the raster.
Initial Row
Initial Column
Height
Width
Layer: The user uses geometries from a vectorial layer to crop the raster.
Layer: Combo with all available vectorial layers.
Crop Type:
Aggregate all geometries: Use all geometries from layer to crop the raster, generating only one raster.
Group by Attribute: Uses a specific attribute from layer to group the geometries to crop the raster, generating one raster for each group.
Use selected geometries: Uses only the selected geometries to crop the raster.
Select PROCESSING → RASTER PROCESSING → CLIPPING in the main menu.
On the List of Layers select the raster layer to clipping.
Optionally use Filter By Name field giving part of the layer name to help find the layer in the list.
Press the Next button to go to next step or the Cancel button to close the dialog.
Clipping parameters
Select the type of clipping to be used (Region of interest, Dimension or Layer) and set their specific parameters.
In Region of interest option select By drawing and use the tool
to create a region of interest to crop the raster over the visualization area.
If By extent is selected enter the X and Y values. Click on the Preview button to have a previous view of the area.
In Dimension option use the tool
to draw over the visualization area to crop the raster or enter the row, column, height and width values.
In Layer option select the vector layer and the an operation option: aggregate all geometries, group by attribute and choose one attribute, or use selected geometries
Press the Next button.
Output information
Raster Info - First
press
and inform the folder where the resulting file will be saved.
Name - inform the raster name.
Extra Parameters - if there are some.
Press the Finish button to save the resulting raster.