/// <summary>
/// Only for developers who are defining custom subclasses of CurveObject.
/// Directly sets the internal curve geometry for this object. Note that
/// this function does not work with Rhino's "undo".
/// </summary>
/// <param name="curve"></param>
/// <returns>
/// The old curve geometry that was set for this object
/// </returns>
/// <remarks>
/// Note that this function does not work with Rhino's "undo". The typical
/// approach for adjusting the curve geometry is to modify the object that you
/// get when you call the CurveGeometry property and then call CommitChanges.
/// </remarks>
protected Curve SetCurve(Curve curve)
{
var parent = curve.ParentRhinoObject();
if (parent != null && parent.RuntimeSerialNumber == this.RuntimeSerialNumber)
return curve;
IntPtr pThis = this.NonConstPointer_I_KnowWhatImDoing();
IntPtr pCurve = curve.NonConstPointer();
IntPtr pOldCurve = UnsafeNativeMethods.CRhinoCurveObject_SetCurve(pThis, pCurve);
curve.ChangeToConstObject(this);
if (pOldCurve != pCurve && pOldCurve != IntPtr.Zero)
return new Curve(pOldCurve, null);
return curve;
}
