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You can use these Circle icons to measure the diameter, roundness, and position of the center of a hole or stud parallel to a reference plane, i.e. the perpendicular section of a cylinder aligned with a reference axis.

To create a measured hole or stud, you must take a minimum of three hits. The plane is automatically recognized and set by the system during measurement. You must distribute the points to be picked uniformly around the circumference of the circle.

Example Circle with 4 Points

Example Circle with 8 Points

For information on the associated Edit window command, see the "Basic Measurement Format for a Circle" topic in the "Creating Measured Features" chapter.

You can also create circles from a single point by using the Measure Single Point Circle toolbar item. This is useful when you attempt to measure a hole with a probe whose sphere size is larger than the hole's diameter and therefore cannot fit entirely into the hole to take the usual minimum three hits required. For more information, see the PC-DMIS Portable documentation.