Finding Angle between lines
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i need to find an angle between lines
has in the image
whats i do
Consider some random vector points![Annotation 2018-12-24 235825.jpg](https://www.mathworks.com/matlabcentral/answers/uploaded_files/199711/Annotation%202018-12-24%20235825.jpeg)
![Annotation 2018-12-24 235825.jpg](https://www.mathworks.com/matlabcentral/answers/uploaded_files/199711/Annotation%202018-12-24%20235825.jpeg)
4 个评论
Image Analyst
2018-12-25
I doubt you have both. What created that image?
And I'm not going to do an image processing example if you have the endpoints in a vector and can do a simple math thing like the answer below (scroll down).
回答(2 个)
zb li
2018-12-25
编辑:madhan ravi
2018-12-25
A(a,b) B(c,d) C(e,f)
AB = (c-a,d-b),BC = (e-c,f-d)
cosABC = AB*BC/|AB|*|BC| = (c-a,d-b)*(e-c,f-d)/|(c-a,d-b)|*|(e-c,f-d)|
so , acos(cosABC)*180/pi
另请参阅
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