Sometimes you may wish to delete cloud points based on their radial distance from a set of points. For instance, once you’ve scanned a set of registration spheres and extracted the sphere centers, you may wish to delete the scan data of the spheres themselves (so they do not interfere with other analysis). This command first prompts for a selection of point clouds to consider and the a set of points and delete's all cloud points within the specified radius relative to each reference point.