There are several modes to adjust the view and shape of the model:

• Normal mode: Rotate objects.
• Move mode: Move objects within the window.
• Zoom mode: Mouse movements control zoom in and out.
• Default view: Resets the magnification and position to original settings.

  Manipulate objects by clicking and dragging the nodes (vertices) from one position to another. The segments connecting the nodes will stretch as the node is repositioned. Once the object is finished users can apply different force values each node using x, y and z coordinates to represent the real stresses that will be applied to the object.