坐标测量机 (CMM) > Construct Steps > Construct Plane > To Create a Theoretical Plane
  
To Create a Theoretical Plane
By using the Theoretical option, you can create a Constructed Plane with reference to an existing plane.
1. Click Inspect > Plane. The CMM Construct tab opens.
2. Select the parent reference Csys from the Parent Csys drop-down list.
3. Select Parallel from the Type drop-down list.
4. Select a datum reference plane.
5. Click OK.