Hi Toshi, this is a result of naive code in the curve frame component. The next version of Grasshopper will have improved code that provides so called 'zero-twisting' frames similar to RhinoScripts CurvePerpFrame() function.
-- David Rutten Robert McNeel & Associates On Sep 11, 7:38 pm, Toshi <[EMAIL PROTECTED]> wrote: > Hello > > I have a problem of "perp frames". I want to make rhino fonction of > "orient perp to curve" but some time the ojjet is flip bad normal > direction.How to fix the normal direction to Z? > > thank you for your help. > > http://grasshopper3d.googlegroups.com/web/Sweep+1+rail.JPG?http://grasshopper3d.googlegroups.com/web/sweep+1+rail.3dm?http://grasshopper3d.googlegroups.com/web/sweep+1+rail.wrm?
