How to bulid a cage that blends perfectly

[kutsche]

Hi,

Can PowerNURBS create Surfaces out of a Curve NETWORK?

I´m trying to get the followingworking:

I want to create a splinecage out of Powersketch "Interpolate"- Curves and then create surfaces into the intersections of the curves.

To simplify my aim here´s a example where I try to create a perfect sphere out of three perfect cycles:

In this case i did make a powercircle, converted it to editable nurbs, copied it twice and finally splitted all the intersections between these three circles.



Then I try to create surface out of the triangle shapes that blends perfectly between the parts. I tryed the Powerrailsweep as well as the Power Cornerblend. The result firstly seems to be good:



Then I exported it to *.3dm to check the surfaceanalysis within rhino´s reflection methods: In RHino I examed that the curvnature is not perfect, not éven good.

http://www.ak3d.de/sonstiges/forum/Rund/Rund.htm

What is the best method for creating surfaces around a spline cage with intersecting curves so that the curvnature of the face blends perfectly between these curves? With the Cornerblend (without "use tagent fields") The result is close to my aim: I have a highly complex Surface, with absolut control over the forms with my spline cage. But this doesn´t work if the Curvanture doen´t blends perfectly!

All Curves are of Degree "3" and shout be perfect smooth internally. Because the CUrves are of type "Interpolate" I am able to create intersection without breaking this smootheness of every curve. The cage is just perfect! Now I only need a method to create the surface between these 3-4 sides - shapes!

If this would work, I´m sure you can model really EVERYTHING with PowerNURBS in a very intuitive and fast way!

Thanks for help!

André Kutscherauer