The Caliper is a quick-check tool that works similar to a physical caliper. It provides a local two-point size check on the Pointcloud (COP), Mesh, or COPOPER (such as the COPSELECT, COPCLEAN or COPFILTER) object. The Caliper shows the measured length along the selected axis or direction.
For details, see "Caliper Overview" in the PC-DMIS Laser documentation.