Creating a colorbar in Matlab

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Lavenia 2024-2-14

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https://ww2.mathworks.cn/matlabcentral/answers/2081963-creating-a-colorbar-in-matlab

评论： Lavenia 2024-2-14

Im new to understanding Matlab and i have a two part question.

1. Is this colorbar automatic colors? As in Matlab picks its default colours? Because i do not choose colours anyhere, and just type these two commands in and i get a blue/yellow/green colour on the figure. What does cb stand for?

colorbar;

cb = colorbar;

2. Is there a way to create a manual colour bar using these colours? #0192bf, #41abce, #ffff00, #ffff41, #ffff7f. Im making a contour plot using contourf

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Dyuman Joshi 2024-2-14

"Is this colorbar automatic colors?"

The colorbar just displays the bar which shows the color scale of the figure.

"As in Matlab picks its default colours?"

Yes.

"What does cb stand for?"

cb is the handle to the colorbar object.

"Is there a way to create a manual colour bar using these colours? #0192bf, #41abce, #ffff00, #ffff41, #ffff7f. Im making a contour plot using contourf "

See the section on making a custom colormap on this page - colormap.

There are loads of other questions on this forum with examples of making custom colormaps for a figure. Go through them.

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