### Intersection

The Intersection operation computes the spatial intersection between the objects of two layers. The objects of the input layer that have intersection with the objects of the overlay layer will be cut and included in an output layer.

### Interface usage

Go to Vector Processing > Intersection... to obtain the following interface:

1. Select the input layer.
2. Select the overlay layer.
3. Check the option "Include attributes of input layer" if you wish to include all the attributes of objects that were cut in output layer.
4. Select a layer name and a repository (data source) to store the operation result.
5. Click "OK" to perform the operation or "Cancel" to close the interface.

### Usage tips

The Intersection result can be stored in different TerraLib datasources. Check data source selector for more details on how to select a data source.

If the Input layer and the Overlay layer are in different SRSs (Spatial Reference System) the geometries of the Overlay layer will be converted before executing the operation. If only one of them have an unknown SRS a message will be issued, since no conversion will not be possible and the result might be incorrect.

The option to use only selected objects from the Input and/or Overlay layers is under development.