Looking to animate two lines with the angle between them changing?
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Have an EMG signal which I've used to get a range of corresponding angles. would like to have 2 lines representing an arm where the angle I have is between them. From there i would like to animate the whole process with all angles. Cannot figure out how to do this?
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Brandon
am 25 Nov. 2014
Are you wanting to animate this in real time or create a video file from the plot.
You may be interested in looking at these two functions:
Andrew Reibold
am 25 Nov. 2014
Bearbeitet: Andrew Reibold
am 25 Nov. 2014
Bro, If you are working with EMG signals you should really know how to do Highschool trig... haha :-)
But anyway, here is an example of how you could do it using Unit Circle concepts and a line of length 1! Replace angles with your angles in degrees - This one animates from 30-90. (If your angles are in Radians use sin and cos instead of sind and cosd )
figure
for angles= [30:90];
x = cosd(angles);
y = sind(angles);
plot([0,1],[0,0],[0,x],[0,y])
axis([-1.5 1.5 -1.5 1.5])
pause(.01)
end
7 Kommentare
Andrew Reibold
am 25 Nov. 2014
Bearbeitet: Andrew Reibold
am 25 Nov. 2014
I think I am misunderstanding what you mean by raised. I am sorry.
On my plot, it already looks like the arm is being 'raised' [from the horizontal - to Vertical]...
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