### Extracting with CAD data

When you are measuring a part for which CAD data has been imported, you can extract Auto Features by doing the following:

1. Scan the surface of the part in which the needed Auto Feature exists.

2. Click on the CAD surface near the edge of the needed feature. PC-DMIS will solve the Auto Feature with nominal data from the CAD and measured data from the Pointcloud data that is closest to the feature nominals.

3. Continue selecting the needed Auto Features that reside within the Pointcloud.