# Creating Models in Blue Locate

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

## Blue Locate Node Model

Node models are a used to group features together that appear in a similar geometrical position, and a node model provides a transform that can be consumed by downstream tools to adjust the orientation of Views.

The node model has its own properties relating to the number of features that can be found (nodes), the identifier of each node that can be found, as well as the minimum distances and angle range that the model can exist in. Models can also be created and detected after training the tool.

Each node of the node model also has some of its own information, such as angle, position in the node model, and what the valid features are for that node.

## Blue Locate Layout Model

The Blue Locate tool also gives you the option of creating a region-based model, where you can instruct the tool to search specific areas of the image for specified features. The layout model can be used to do the following:

- Check for the presence of a feature within one or more regions.
- Verify that the correct feature is in the region, along with the number of instances of that feature within the region.
- Provide a Region of Interest (ROI) for a downstream tool.

Note: For more information on using a model to provide a view for a downstream tool, see the topics.