### Probe/Hit Area

Probe/Hit area

Probe Position check box | When you select the Probe Position check box, PC-DMIS displays the current position of the probe. The Probe Readout window will display the probe's position in the active coordinate system.
Last Hit check box | When you select the Last Hit check box, PC-DMIS will display the location of the last hit taken with the probe. If this option is not selected, PC-DMIS displays the current position of the probe.
Display error of last measured feature check box | When you select the Display error of last measured feature check box, PC-DMIS displays any deviations along the XYZ coordinates (and D for circular features) for the last measured feature in the Probe Readout window. Even if the deviation is 0 then only 0 is displayed.
Display form error of current feature check box | When you select the Display Form error of current feature check box, PC-DMIS displays the form error for the feature being learned or executed. If the feature has a valid form dimension (circularity, straightness, flatness, or cylindricity) then the appropriate GD&T symbol will be displayed near the value. Otherwise, the Greek letter Sigma will be di splayed indicating standard deviation.

If there are not enough hits to calculate a form value, PC-DMIS displays a line of dashes for the value until sufficient hits are processed.