/// <summary>
/// Set the geometry curve used by the ModelCurve
/// </summary>
/// <param name="c"></param>
protected void InternalSetCurve(Autodesk.Revit.DB.Curve c)
{
if (!this.InternalCurveElement.GeometryCurve.IsBound && c.IsBound)
{
c = c.Clone();
c.MakeUnbound();
}
setCurveMethod(this.InternalCurveElement, c);
}