Filter Clouds to Circular Arc B-Splines

New point clouds can be build from other clouds based upon the proximity of cloud points to a selection of B-splines. This is a unique command in that it does two things.

  1. It identifies segments of a b-spline that represent arc sections, or segments of a circle

  2. It then filters the cloud based upon this arc. Cloud points beyond a plane constructed normal to the spline at either end will be ignored.

If the b-spline does not represent a true circular arc the command will fail. But if the b-spline is recognized as an arc, it will present a filter distance control.

Filter Tolerance. Much like the radial filter controls for a line this control allows selection of cloud points that fall within the specified distance to the arc.