Finding the angle between lines that Ive plotted

Question

Zo 2019-3-25

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链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/452111-finding-the-angle-between-lines-that-ive-plotted

评论： Zo 2019-3-26

采纳的回答： KSSV

plot.png

在 MATLAB Online 中打开

Good evening ,

I've been trying to find the angle of the lines in the attached photo and i can't seem to find it correctly.

This is the code i've been using.

Please help.

% plot the mouse point coordinates on the figure
L = plot(mousePointCoords(:,1), mousePointCoords(:,2),'b','LineWidth',2);
u = mousePointCoords(:,1) 
v = mousePointCoords(:,2) 
CosTheta = dot(u,v)/(norm(u)*norm(v));
ThetaInDegrees = acosd(CosTheta);

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Answer 1

KSSV 2019-3-25

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/452111-finding-the-angle-between-lines-that-ive-plotted#answer_367149

YOu have multiple ways to do this. Refer below:

https://in.mathworks.com/matlabcentral/answers/78195-how-to-measure-angle-between-the-lines

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Zo 2019-3-26

results.png

okay so i did use them. However when i ran the code, i got three angles and im not sure which is the angle that i am looking for. I attached what i got.

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