Creates a spline that attempts to fit an order degree curve to the array of points within the tolerance fitTolerance. A fitTolerance of 0 causes the curve to be interpolated precisely through all the points in the points array. The curve order may be in the range 2 to 26. 

The curve end tangent directions are allowed to "float" to whatever value allows for the best curve fit of the points in the points array. 

If any of the parameters are not acceptable, then the gelib object for the spline is not created and this constructor behaves like the default constructor (that is, the passed in values are not used and the data query methods on the spline return invalid values). 

Use Spline.IsNull to determine if this constructor succeeded in initializing the spline to the values passed in. If Spline.IsNull returns false, then the initialization succeeded.

Public Sub New(
    point As Point3dCollection, 
    order As Integer, 
    fitTolerance As double
)

public Spline(
    Point3dCollection point, 
    int order, 
    double fitTolerance
);