#### Deviation Perpendicular to Centerline

The Deviation Perpto Centerline check box determines whether PC-DMIS calculates the deviation perpendicular to the feature's theoretical centerline or perpendicular to the direct X, Y, and Z values.

- If selected, PC-DMIS calculates the deviation perpendicular to the feature's theoretical centerline, ignoring any deviation in the direction of the centerline.

- If deselected, PC-DMIS calculates the deviation perpendicular to the X, Y, and Z values.

This check box is especially useful with sheetmetal points which may have approach vectors not oriented along the X, Y, or Z axis. This check box will allow the deviation to be found perpendicular to the approach vector.