This tool generates a layer that can implement operations on the entire area of the layer except for the selected area of interest that functions as the mask.
The Mask tool can be selected by navigating the following path:
Tools > Vector Processing > Spatial Analysis > Mask
The first section requires you to select required data layers to run the Mask tool.
- Select a Polygon Layer – Layer on which you will run this tool.
The second section requires you to select the range of data for the operation to be implemented. There is only one option available.
- Select By Graphics
For more information about this option and how to implement it, see Data Selection Methods.
Once you select a range of data, another section develops to choose geometry. There is only one option available.
- Polygon Selection – Polygon can be plotted on layer.
The output layer is represented by the highlighted polygon. The selected polygon is excluded from the output and represents the mask.
You can view the output after storing it. To save the output, you must enter the Output Layer Name and click on Save Data button. The saved output will be added as a new layer in the current map session, where you can apply styling as required. This output layer will also be available in 'My Data' section and can be used in any map session of interest.