FY00 = [0, 0]
FY01 = [100, 0]
FY02 = [98, 40.10]
I have 3 points like this, first param is ρ, second param is θ, I want calculate ∠FY00-FY01-FY02 using python, how to do that?
How to calculate angle between 3 polar coordinate points?
Viewed 30
1 Answers
Do you have a problem with the math or with the implementation?
For the former, for any point (ρ, θ), you can translate to Cartesian coordinates via
x = ρ cosθ
y = ρ sinθ
Once you get the Cartesian coordinates of all three points, you get the vectors
v = B - A
u = C - A
where A are the coordinates of the vertex of the angle. Finally, after you have the vectors v and u, you simply write
∠BAC = arccos[(u.v)/|u||v|]
For the latter, well, post your attempts and ask why they're not working.
Related