This registry entry defines the default Diameter value that PC-DMIS uses for circular Auto features (circles, cones, cylinders, and spheres). For a cone, this value represents the nominal diameter at the end of the cone where you've defined the X,Y, and Z location. This value is used for Vision and Laser probes, while the DccDiam registry entry value is used for contact probes.
Entry Name: Diameter
Entry Type: Real Number to specify diameter. The default value is -1 (NONE).