How to change color in a plot?

Question

Nimrod Daniel 2015-6-2

1
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/221988-how-to-change-color-in-a-plot

回答： Brendan Hamm 2015-6-2

Hello,

I have a plot with 4 different colors, and I want to change the green (light green) to deep green, so it would be like: plot(x,y,'color',[0 0.7 0])

In the main file I have:

if m == 1 color='.blue'; else if m == 2 color='.red'; else if m == 3 color='.black'; else if m == 4 color='.green'; end; end; end; end;

And in another function I have (the other function gets color, of course) : plot(xloc_est,yloc_est,color); % plot the filtered data

My simple question is what should I change in order to change the light green to [0 0.7 0] ?

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Answer 1

Brendan Hamm 2015-6-2

5
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/221988-how-to-change-color-in-a-plot#answer_181287

在 MATLAB Online 中打开

One thing you could do is just change the ColorOrder property of the axes itself:

f = figure;
colors = [0 0 0.7; 0.7 0 0; 0 0 0; 0 0.7 0 0]; % b,r,k,g
a = axes('ColorOrder',colors)
% plot your lines and they will be plotted with these colors in order.
plot(x,y);
hold on
plot(x2,y,2);

Then plot your other lines ...

Your other option is to change with a single plot the way you showed:

plot(x,y,'Color',[0 0.7 0]);

which could be accomplished in your loop:

if m == 1
    color = 'b';
elseif m == 2
    color = 'r';
elseif m == 3
    color == 'k'
elseif m == 4
    color == [0 0.7 0];
end
plot(x,y,'Color',color);