As it is known, trigonometric function is the most useful formula in this case.

See the graph below.

Values of sine and cosine are always between -1 and +1. It means any angle can be found with the value between 0 and 1(plus or minus).

There is a similar one in Revit.

The location of a point on a line can be defined with the value between 0 and 1 in Revit.

So it can be said that a point can be located on a line with angle by using trigonometric function, and vise versa.

Here is an example I have made.(This is the first uploaded video in my channel)

(Yeah, I love LEGO)

And here is the how to video.

I made it just for fun. but the concept can be used in real architecture projects.

(you can download the family above here, except the figure)

Enjoy ;-)

Absolutely masterpiece!

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