Use the Point-Cloud tab > Project panel > Selected Points option to compare the selected points with the CAD model and show the deviation of the points from their nominals.
To project points onto the CAD:
The progress of the projection is shown at the bottom left of the graphics window. When the projection is complete, PowerInspect uses the colours specified in the Tolerance Band page of the Options dialog to indicate whether points are above, within, or below tolerance. Use the Point-Cloud tab to view the deviation between the measured position of each point and the CAD surface.