1. Use the Softmenu switch [3] Volume to select 3D Volume: Distance + Ellipse. “3D Volume: Distance + Ellipse” is displayed on the left side of the screen.
2. Specify two points and measure the straight distance between them. The method for measuring a line is the same as in “2D Distance (Line).”
3. Specify the size of the circle (ellipse). The method for measuring a circle (ellipse) is the same as in “2D Ellipse.”
4. When the measurement is finished, its result is shown on the screen.