The surface precision in Maxsurf can be changed through the Automation interface using the Precision object of the Preferences object. The precision can be set to 5 stages between ‘lowest’ and ‘highest’. The precision object uses enumerated values of msSurfacePrecision type as defined on page 86 in the section Enumerated Types.

In code, the Precision object is used as:

    msApp.Preferences.Precision = msSPMedium

The precision object can also be used to get the current surface precision from Maxsurf.