Current Help System: PC-DMIS CMM (View Core Help)

#### Circle Basic Scan - Measured Point Method

To generate the circle without the use of CAD data:

1. Take three hits on the surface to find the plane that the circle is lying in.

2. Take three additional hits in the hole (or on the stud). PC-DMIS calculates the circle using all three hits.

Additional hits can be taken. PC-DMIS will use the data from all of the measured hits. The Centroid that is displayed is the calculated center of the hole (or stud). The CutVec is the circle axis and the InitVec of the circle is calculated based on the first of the latter three hits that are used calculate the circle. The angle is calculated as the angle of the arc from the first hit to the last hit.