# Blue Locate Tool – Models

The Blue Locate tool can generate a model based on the geometric relationship of features (a node model) or areas of the image (a layout model).

- The node model is used to identify features based on their geometrical position.
- The layout model is used to identify whether or not one or more feature is present in a specific area of the image.

Note: For more information on using a model to provide a view for a downstream tool, see the ROI Options Following a Blue Locate Tool topics.