TC-Ray : need for a smoothing routine?

[Jark]

can be, I think, quite easily deducted from Shape4, considering this module includes the other ones... But I cannot see how to get something more simple, unless making hypothesis on some coefficients. And since I designed this module to be capable of drawing any quadratic, then it must have the complete set of equation coefficients.

I will try to re-design all that stuff by september...