Moving plot of a sine wave.
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Hi all,
Trying to create a moving plot of a sine wave. I'm essentially after the sine wave to start on the screen showing two cycles and then have the sine wave move while the plot moves to the right by two cycles and then back to the left by two cycles. I have this bit below to animate the sin wave but can't seem to get the plot to move as well. Cheers!
t = 0:0.1:4*pi;
y = sin(t);
for k = 1:length(t)
plot(t(k),y(k),'x')
hold on
plot(t(1:k),y(1:k))
axis([0 4*pi -1 1])
grid on
pause(0.1)
if k ~= length(t)
clf
end
end
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回答(1 个)
Mrunmayee Gaikwad
2020-9-23
Hi,
To make the plot move, you will need to keep updating the ‘t’ vector in for/while loop and then plot the sine wave.
For example, this will move the plot to the right:
for j = 1:length(t)
plot(t,y)
axis([0 8*pi -1 1]) % moving 2 cycles would mean the end would be 4pi + 2*2pi = 8pi
% you can keep the axis endpoints according to your need
grid on
pause(0.1)
hold on
if j ~= length(t)
clf
end
t = t + 0.1; % used 0.1 increment as elements in t have 0.1 difference
% Also, as y is already defined earlier, this change in t will not change y
end
To move to left you can vary j as: j = length(t):-1:1
另请参阅
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