To this code I want to add the property that every new turn renderes a new color in the plot

Question

Robert Bag 2021-4-18

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https://ww2.mathworks.cn/matlabcentral/answers/805946-to-this-code-i-want-to-add-the-property-that-every-new-turn-renderes-a-new-color-in-the-plot

回答： Marco Riani 2021-4-18

To this code I want to add the property that every new turn renderes a new color in the plot.

nturns = 8;

t=linspace(0, nturns*2*pi, 10000);

x=t.*cos(t);

y=t.*sin(t);

z=t;

colors = hsv(length(t));

plot3(x,y,t)

xlabel('x')

ylabel('y')

zlabel('t')

view(3)

h = get(gca,'zlabel');%handle

f = get(gca,'xlabel');

g = get(gca,'ylabel');

set(h,'Rotation',0,'VerticalAlignment','middle');

set(f,'Rotation',0,'HorizontalAlignment','center')

set(g,'Rotation',0,'HorizontalAlignment','right')

grid on

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Answer 1

Marco Riani 2021-4-18

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/805946-to-this-code-i-want-to-add-the-property-that-every-new-turn-renderes-a-new-color-in-the-plot#answer_678346

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Hi Robert,

The above is a preview (I hope this is what you asked)

Here is the code (done for example for the case nturns=5)

close all
nturns = 5;
Colors={'r' 'g' 'b' 'c' 'k'};
hold('on')
for ii=1:nturns
    t=linspace((ii-1)*2*pi, ii*2*pi, 10000);
    x=t.*cos(t);
    y=t.*sin(t);
    z=t;
    plot3(x,y,t,'Color',Colors{ii})
end
xlabel('x')
ylabel('y')
zlabel('t')
view(3)
h = get(gca,'zlabel');%handle
f = get(gca,'xlabel');
g = get(gca,'ylabel');
set(h,'Rotation',0,'VerticalAlignment','middle');
set(f,'Rotation',0,'HorizontalAlignment','center')
set(g,'Rotation',0,'HorizontalAlignment','right')
grid on