Public Structure FitData End Structure
This class encapsulates the data returned by the Spline.getFitData() ObjectARX function.
If the spline has fit data, then this struct contains all the fit points (in WCS coordinates), fit tolerance, and, if tangents exist, the start and end tangents of the spline. The data is returned via the properties FitPoints, FitTolerance, StartTangent, and EndTangent respectively.