Filtering Clouds to Points

Given a set of clouds and a set of points, SA can filter the clouds to the points. You provide a desired proximity and maximum number of points, and choose the existing points to serve as filter points. SA will create a new point group containing a subsampled set of up to the prescribed number of points (within the proximity) for each filter point.

This command is useful, for instance, when you have a set of nominal points on a design surface that indicates where you’d like to measure, and you have a surface scan of the part. The command will filter the clouds to those points.

To Filter Clouds to Reference Points:

  1. From the menu, select Construct>Points>From Cloud Points>Filter Clouds to Points.

  2. Select the points to use as filter points.

  1. Pick one or more clouds to filter.

  2. At the prompt, specify the resulting group name.

  3. Enter a filter proximity—the maximum distance that a resulting cloud point can be from a filter point. Entering 0 will create a point only at the closest cloud point.

  4. Specify the maximum number of points to create for each filter point. Entering 0 will pick all points within the prescribed proximity.