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The geometric model construction starts on the Model page with the creation of a new empty model and the definition of the time and the input image.

The input image is loaded and displayed on the VOIs&Tracking/Image sub-page. If necessary, the image can be cropped before starting the VOI definition.

The work continues on the VOIs&Tracking/VOIs sub-page with the VOIs definition.

Finally, the VOIs (geometry) are added to the model in the model builder interface. This will result in the model tree structure. STL structures are auto-generated and saved for each VOI added to the model. Optionally, additional characteristics can be defined for each element present in the model tree structure.