Finding Angle between 2 points
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Hello,
I need to calculate the angle between two point from the matlab plot. I tried by applyingthe code which is provided in the discussion but the result is not correct.
The image is attached, I want to find the angle theta which is fromed by point p1,p2 and o.
P1,P2 coordinates are known to us.
I tried using the code provided in the link attached below but the answer is not correct.
I need your help regarding the same.
Thanks in Advance.
Awaiting for response.
2 个评论
MaryD
2020-4-20
Do you know the coordinates of O point ? Or anything about that ?
aaditya chandel
2020-4-20
回答（2 个）
Gifari Zulkarnaen
2020-4-20
Is this what you mean?
P1 = [10 210];
P2 = [140 210];
Z0 = [(P1(1)+P2(1))/2 225]; % Reference point, assuming it is in the middle of P1 & P2
degree = 2*atand((P2(1)-Z0(1))/(Z0(2)-P2(2)));
r1=sqrt((x1-xo).^2+(y1-yo).^2);
r2=sqrt((x2-xo).^2+(y2-yo).^2);
alpha=acos((x1-xo)/r1);
beta=acos((x2-xo)/r2);
theta=alpha-beta;
keep in mind that acos is specified for pi <0:pi> so if one (or both) points would be placed under O point you have to adjust this equation.
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2020-4-20
2020-4-22
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