You can construct a circle by changing any given feature into a circle. PC-DMIS constructs the circle at the centroid of the input feature. If you use a sheet metal point, the diameter is the probe diameter. For some sheet metal features (such as slots and notches), PC-DMIS uses the width as the diameter. For features that do not have diameters (lines, points, etc.), PC-DMIS uses a value that is four times the probe diameter.
You can modify the diameter of the circle; this changes the circle from DEPENDENT to INDEPENDENT. This means that when the circle is executed, the diameter does not change based on the input feature but is independent of the input feature, while the position and vector remain dependent on the input feature. This allows you to have control over the diameter in cases where the input feature doesn’t really have a diameter, such as a point. The DEPENDENT/INDEPENDENT field is a toggle field that you can change.
PC-DMIS uses this diameter value for all calculations instead of using the default diameter value as described above.
To construct a cast circle:
Access the Construct Circle dialog box (Insert | Feature | Constructed | Circle).
From the Method list, select the Cast option.
Select at least one features of any type.
Click the Create button.
The Edit window command line for this option would read:
CONSTR/CIRCLE,CAST,feat_1,(DEPENDENT | INDEPENDENT)