Everytime I run code the color of lines on my graph changes
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load ENGR131_lab4_Data.mat
function h = CalcPosition(t,DC,w)
wn=1.8
o=DC.*wn;
h=1-exp(-o.*t).*cos(w.*t);
end
function x = five(t,N,V,h,w)
z=evalin('base','DC')
for N=1:2
switch N
case 1
plot(t,h)
hold on
case 2
plot(t,h);
hold on
case 3
LineColor='k-';
plot(t,h,':');
hold on
case 4
LineColor= 'm-';
plot(t,h,'-.');
hold on
end
end
end
for V=1
subplot(2,3,V)
t=linspace(0,20,100)
for N=1:2
figure(1)
h=CalcPosition(t,DC(1,N),w(1,V))
five(t,N,V,h,w)
end
end
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Respuesta aceptada
Rik
el 2 de Oct. de 2024
Editada: Rik
el 2 de Oct. de 2024
That makes sense, since you don't actually set the LineColor property when calling plot (instead you just have a variable with that name).
This means that every time you call this function, the same figure is being reused and a new line is plotted overlapping the existing lines, making it look as if the line colors are changing.
The solution is to do what you intended to do:
LineStyle='-.'
LineColor='m';
plot(t,h,LineStyle,'LineColor',LineColor)
You should also consider using explicit handles: create a new figure (or wipe the old one with clf) and a new axes, use hold on that axes object, plot, and release the hold.
And your use of evalin signals that you should rethink how you handle input arguments.
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