How to find a vector normal to given vector?

Developers
1

Hi all,
I have a vector with me,I want to find another vector which is normal to the vector that I have with me.
Can it be achieved using any nodes/python or Revit api?.

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2

do you mean the normal to a plane ??
There are an infinite number of vectors normal to a particular vector (think spokes of a wheel, if the first vector is the axle)

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3

image

this?

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4

There are two factors in Vector which are Direction and Length.
If you want to compare Direction only, you can do it after using Vector.Normalized which makes length of any vector as 1(same length).
If you want to find the opposite vector, use Vector.Reverse.

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