Perimeters
Perimeters appear graphically much like a series of connected lines that define a 3D volume. Perimeters are used with scanning devices to define a region of interest for measurement purposes.
From Points
This command will create an open or closed perimeter object from selected points. Its purpose is to provided a boundary for scanning instruments. The below example shows perimeters to capture data from a targetless scanner.
From CAD Faces
This option will build a bounding perimeter for each and every surface face selected. This makes it quite easy to identify specific CAD faces to be measured.
From Instrument Viewpoint
Bounding Surface
When a scan of an entire model is needed, this option delivers. It uses the base frame of the selected instrument as the viewpoint, allows a selection of a selection of surfaces and builds a bounding perimeters that is grown 10% larger than the model to ensure complete surface coverage from the instruments perspective.
From CAD/Plane Intersection
This option first builds a b-spline from the intersection of a plane and a surface. It then analyzes the curve to identify how much of it is visible from the selection instrument station and returns an open perimeters that defines the visible cross section for measurement.
This tool allows you to select a set of surfaces. The intent is to allow you to select faces from the CAD in a scenario where the surfaces are split apart in separate surfaces (such as importing an Iges file). Only a single open curve will be returned for a particular intersection so it will not bridge gaps. If you do not get a full perimeter from the CAD you may need to dissect the surface to allow you to more accurately select the surface of interest.