Specifies that automation is required when arc line identification is being done.
Interactively, options are available to tune the fitted wavelength polynomial, add and delete features etc.
If AUTO_ID is TRUE then the package will try to identify the arc line features automatically. For orders with sufficient features (>12 lines) this will usually be successful.
A useful strategy is often to do an automatic run first, then manually examine the fitted features to verify their suitability.
Martin Clayton