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how to automatically find the angle from 2 points ?

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wongsathorn pinwihok
wongsathorn pinwihok on 25 Jan 2020
Commented: Adam Danz on 26 Jan 2020
I try to find the angle between 2 points that I manual put it in the image but I want to find the angle between this 2 points with automatically methods. WIN_20191107_14_49_54_Pro.jpg
How to do ? Thank you.

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wongsathorn pinwihok
wongsathorn pinwihok on 25 Jan 2020
how can i define that 2 markers and find the angles like Akira said?
Adam Danz
Adam Danz on 26 Jan 2020
If point1 and point2 are defined by (x1,y1), (x2,y2), you can get the angle by
atan(abs(y2-y1)/abs(x2-x1)) % radians
% or
atand(abs(y2-y1)/abs(x2-x1)) % degrees
If you want to programmatically define the two points as well you'll have quite a bit more work to do starting with a solid definition of how they are located.

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