How to draw a number of colors from custom colormap?

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Marcel345614 2021-9-2

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评论： Marcel345614 2021-9-2

I used the colormapeditor to change a predefined colormap the way I want it. Then I saved this custom colormap to the workspace. It is a 256x3 vector.

How can I now draw a number of colors from this colormap?

Example:

I want 14 different colors for a plot with 14 lines.

In case of predefined colormaps, this would be easy:

cc=jet(14)
figure
hold on
plot(x,y,cc(:,1))
plot(x,y,cc(:,2))
...
    

How can I do the same thing with my custom colormap?

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Answer 1

Jan 2021-9-2

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https://ww2.mathworks.cn/matlabcentral/answers/1445449-how-to-draw-a-number-of-colors-from-custom-colormap#answer_779599

编辑：Jan 2021-9-2

在 MATLAB Online 中打开

YourMap = rand(256, 3);
% 14 color which exist in the original map:
Map14   = YourMap(round(linspace(1, 256, 14)), :);
% With interpolation:
Map14i  = interp1(1:256, YourMap, linspace(1, 256, 14))