• 1. Load image.
• 2. Define scale by setting two crosses with right mouse click.
• 3. Define optical axis by defining a vector from first to second cross.
• 4. Define radii by setting three crosses. First two crosses define radius with center on optical axis unambiguously. Third cross defines optical semidiameter.
• Navigation with left mouse + wheel in image. Sorting of the radii along the optical axis by "Sort". Adding materials in table for correct export in zmx-File .