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
4 个评论
Image Analyst
2018-12-24
What do you have? Endpoint coordinates of each of the line segments? An image with all that stuff on there?
OriAlpha
2018-12-24
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).
OriAlpha
2018-12-25
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
Image Analyst
2018-12-25
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2018-12-25
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