The scale of this virtual caliper is graduated in inch. In the dial, the pointer gives a complete revolution (360°) every inch of progress (1in) and your display is sixty-four divisions. Thus, each feature that the pointer "sweeps" represents the advance of 1/64 inch (one sixty-fourth inch or 1/64") in the cursor. Note that values smaller than 1/64in demonstrated the virtual dimension of the caliper are obtained by interpolation. horizontally drag and release the cursor
To zoom click in the magnifying glass "bottom of the simulator´s screen".