Nurbs.Surfac Normal method

[nimagitac]

It seems that the surface class has no method 'normal' although it is mentioned in the PDF file of the manual on page 93. Therefore, I utilize ' operations.normal' instead. Could you please let me know if the method 'normal' exists for the NURBS.Surface class?

[orbingol]

operations.normal is the intended way of using it. You can extend the class and add a normal method (or any method) for your projects.