Current Help System: PC-DMIS Laser (View Core Help)

#### Feature Based Clipping Parameters

Feature Based Clipping for Non-Plane Auto Features

PC-DMIS can clip laser data in both horizontal and vertical directions by typing a distance in the Horizontal box and, where available, the Vertical box. This distance will clip all the laser data outside of the defined distance excluding that data when extracting the feature. Alternately, for a Plane Auto Feature you can clip data within an offset boundary around all the CAD elements on a surface. This is also termed CAD segregation. See "CAD Clipping" below.

Horizontal and Vertical Clipping

While all the features support horizontal clipping, only these Auto Features support vertical clipping:

- Circle

- Cylinder

- Polygon

- Edge Point

- Round Slot

- Square Slot

- Surface Point

- Plane

The clipping distances defined in the Feature Based clipping rings are shown as colored rings. The horizontal clipping appears as a yellow ring and the vertical clipping as a light-green ring.

Sample Circle Auto Feature with Horizontal Clipping (A) and Vertical Clipping Ring (B)

Sample Plane Auto Feature with Horizontal and Vertical Clipping Enabled

CAD Clipping

Feature Based Clipping for Plane Auto Feature

The CAD check box and Offset box only appear when using an Auto Plane feature.

When you mark this check box, PC-DMIS creates a yellow offset boundary around each feature in the CAD model on the surface. The offset boundary is calculated by the Offset value; it is drawn at the specified distance away from the features and edges on the surface.

Sample Plane Auto Feature with CAD-based clipping enabled

PC-DMIS clips the laser data that falls inside of an offset boundary for all the features in the CAD model on a surface. The data outside of the offset boundary is used to solve the plane.

For example, consider the image below which shows a section of a sample part. The translucent orange overlay, added to the image here for clarification only, indicates the data PC-DMIS would use to create the Auto Plane feature: