After the introduction of the plan, which should turn out to be the default and in the upper version, the component seems to have an inversion of the outputs . Can anyone explain what is happening?
unnamed.gh (9.2 KB)
Invertion might be cause by the direction of Y vector of the plan?
I donโt know your school profile but you must have skipped that part of classical geometry
And by default if no plan or vector is provided result of Vector Angle must be between 0 and PI.
https://developer.rhino3d.com/api/RhinoCommon/html/Overload_Rhino_Geometry_Vector3d_VectorAngle.htm
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My math is bad
I somehow poorly understood the current case.