Set a point (left mouse button) to each cutting edge, by using the right mouse

button a circle is constructed.  Afterwards start at the first point you have set, to

mark the first clearance angle. Then mark the second and so on.  The results will

be automatically displayed in the image after having marked the last angle.

Clearance angle II

This measurement is similar to the measure function clearance angle. But after

having marked clearance angle I,clearance angle II must be marked before measuring

the next cutting edge. Here also the results will be automatically displayed in the

image after having marked the last angle.