enter image description here

How do I create a layer that displays only the bright red areas on the map (The areas of the red layer that are not overlapped by the purple or yellow layer)?

  • 2
    Welcome to GIS SE. As a new user, please take the Tour. It is critically important that you always include th software in use within the question. Please edit your question.
    – Vince
    Commented Sep 30, 2017 at 23:37

1 Answer 1


From the screenshot I know you are using ArcMap. To select the bright red area only, you may use the Erase Tool in the toolbox of Arcmap.

This is the helping page: http://desktop.arcgis.com/en/arcmap/10.3/tools/analysis-toolbox/erase.htm

It is a two-step operation.

1. For the in_features, choose the bright red layer, for the erase_features, choose the purple layer, the output layer I would name as bright red layer`.

2. For the in_features, choose the bright red layer`, for the erase_features, choose the yellow layer, the output layer would be what you want to select.


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.