2D Features Using the Max Incidence Angle

Laser Auto features have a Horizontal and Vertical clipping zone. PC-DMIS initially evaluates all scanned points within the clipping zone.

For 2D features (Circle and Slots), this setting compares the estimated normal of each scanned point to the feature theoretical Surface Normal.

PC-DMIS excludes points with a vector that fall outside this angle when measuring the feature.

On a sheetmetal part that was scanned from both sides, a laser Auto Circle was created.

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

In this image, no Max incidence angle is used:

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

In this image, a Max incidence angle of 75 degrees is used:

PC-DMIS compares the estimated normal of each point in the clipping zone to the laser Auto Circle, surface theoretical vector. PC-DMIS does not use the points with a vector which fall outside this angle for the feature calculation.