On a thin sheetmetal part that was scanned from both sides, a Laser Auto Surface Point was created.

The Feature Extraction - Vertical clipping zone is set so it includes the part deviations, which in this case are larger than the sheetmetal thickness.

In this image, the scan uses no Max incidence angle:

Since the normals of the scanned points are not taken into consideration, the extracted point uses data from both sides of the part.

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In this image, the scan uses a Max incidence angle of 60 degrees:

The software compares the estimated normal of each point in the clipping zone to the laser auto surface point theoretical normal. Points that fall outside this angle are not used for the feature calculation.

 

Laser extraction of a sphere previously required additional steps and manual selection to exclude adjacent surfaces.

In this image, no Max incidence angle is used:

Data from the adjacent plane is used for sphere calculation.

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In this image, a Max incidence angle of 60 is used:

A few outlying points are included.

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In this image, a Max incidence angle of 45 degrees is used:

In this final example, the actual sphere data is best represented.