Datum frames are referenced by feature control frames to convey the acceptable tolerance on a feature. The DatumFrame object is created through the DatumFrames collection object. It can be created with or without a leader, depending on the setting of the Leader property. The DatumFrame object's height is twice the text character height, and its line thickness is a function of the frame height. If the DatumFrameDashes property is True, datum frame dashes are included at each end of the datum text (which is specified with the Datum property). The gap between the datum frame dashes and the datum text is a function of the text size.
