Radial Framing

Hi -

I am working on a definition that tries to create radial rafters similar to a balinese architectural style. Part of the arrangement means that the rafter srotate as they splay. In my definition, the planes normal to the radial vectors seem to work at first, but then get spun by what looks like 90 degrees.

Also, depending on how many rafter sare defined, the nuber of rafters that rotate chnages.

Can anyone take a look at what I have done and try to elp me understand how to resolve this issue?

I am posting a .ghx file, a rhino rig file, an image suggesting points to be definied in the beginning, and a reference image.

Thanks in advance and hope to get some good feedback...

Dennis grudkowski