angle between three points please help
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for f=1:h
t=(f-1)*k/20;
m=f+1;
P0=[171.5 239.5]; %střed [x,y]
P1=[htabulka(1,1),htabulka(1,2)]; %XY1 [x,y]
P2=[htabulka(f,1),htabulka(f,2)]; %XY2 [x,y]
ang = atan2(norm(det([P2-P0;P1-P0])),dot(P2-P0,P1-P0));
angst=ang*180/pi
cosf=cos(angst);
....
I have this part of code
I have a object rotating --> but this angle only gives me max 30 degrees but that is not posible becaouse the object is making circle
one point the center is always the same, than the beginning point is also the same, and one point is moving due to video --> so the degrees suposed to get from 0 to 360 but it gives me this
3 个评论
Torsten
2022-11-22
ang = atan2(norm(det([P2-P0;P1-P0])),dot(P2-P0,P1-P0));
Could you show us where you got this strange formula from ?
Jeffrey Clark
2022-11-23
Torsten
2022-11-23
The OP posted three different questions on the same subject.
This one was no longer used.
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2022-11-22
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