How do I plot Sinusoidal wave over a circle in Matlab?
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Arthur Reis
el 22 de Feb. de 2022
I'm not sure if I 100% understood your question, but here it is
t = 0:0.01:2*pi; %define interval
x = cos(t);
y = sin(t);
figure;
plot(x,y); %normal circle
%%
f = 10; %define modulation frequency
A = .2; % modulation amplitude
R = A*cos(f*t); %
x = cos(t) + R;
y = sin(t) + R;
figure;
plot(x,y); %similar to your example
%%
x = cos(t).*(1 + R);
y = sin(t).*(1 + R);
figure;
plot(x,y); %modulating the radius
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Arthur Reis
el 7 de Mzo. de 2022
Hello,
you'll only need to change the definition of the 't'. You can use linspace to get an linearly spaced array with expecific number of points (120 in this case). So:
tp = linspace(0,2*pi,120); %new array
xp = cos(tp);
yp = sin(tp);
f = 10; %define modulation frequency
A = .2; % modulation amplitude
Rp = A*cos(f*tp); %
zp = Rp;
figure;
scatter3(xp,yp,zp);
Their coordinates are xp, yp, zp.
Does this solve your problem?
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