### Constructing a Best Fit or Best Fit Recompensate Circle

A "best fit" circle can be constructed from three or more features. The constructed circle's vector is normal to the current working plane. The best fit construction method takes the actual measured points, rather than the ball's center (as is the case of best fit recompensate).

To construct a Best Fit Circle or a Best Fit Recompensate Circle:

1. Access the Construct Circle dialog box (Insert | Feature | Constructed | Circle).

2. Select either the Best Fit or Best Fit Recompensate option (shown as Best Fit and BF Recomp).

3. Select the type of Best Fit construction from the Best Fit Type list.

4. Select at least 3 features.

5. Click the Create button.

The Edit window command line for this option would read:
CONSTR/CIRCLE, BF, feat_1, feat_2, …
OUTLIER_REMOVAL/ (OFF | ON), stdDevMultiple
FILTER/(OFF | ON), UPR =cutoffFrequency

| A - Best fit circle constructed from three or more features (in this example from three or more circle features)

Outlier removal and Filtering are described in these topics:

More:

Best Fit Type

Remove Outliers / Standard Deviation Multiple

Apply Gauss Filter / Cutoff Frequency