Grasshopper

algorithmic modeling for Rhino

Hey, I have a little problem here with the rotation on a line from which I extract a perp frame.. seems as though after 45 deg. of the rotation the plane flips.. any ideas why?

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I'm assuming you're defining the plane by origin and normal vector. Since these values do not unambiguously define a single plane, the result you end up with is never going to have a reliable rotation.

You should get consistent orientation by rotating an existing plane, or by defining it through origin+xaxis+yaxis.

thanx daivid, helpful like always.

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