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Intersect

This tool allows you to compute the geometric intersection of features from two layers.

1. Explanation​

Computes the geometric intersection of two vector layers. The output contains only the areas where both input layers overlap. Unlike Clip, the attributes from both layers are combined and retained in the output features.

Buffer Types

2. Example use cases​

  • Find areas where a proposed development overlaps with protected environmental zones.
  • Identify properties that are within a specific flood risk zone.

3. How to use the tool?​

1
Click on Toolbox Options.
2
Under the Geoprocessing menu, click on Intersect.
3
Select the Input layer you want to clip.
4
Select the Overlay layer you want to use as a second input.
5
Optionally, switch the toggle on Field Selection to choose which attributes to include in the output:
  • Select specific fields from the Input layer to keep in the result
  • Select specific fields from the Overlay layer to keep in the result
  • Modify the Overlay Fields Prefix if needed to avoid naming conflicts (default: "intersection_")
Note

If no fields are selected, all attributes from both layers will be included in the output.

6
Click Run to execute the intersection. Result will be added to the map.