Adapt my colorbar to a specific value

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Gaétan Andriano
Gaétan Andriano 2022-12-13
回答： Gaétan Andriano 2022-12-16
Here is an example of a figure that you can find in the matlab help with the colorbar function.
My interrogation is very simple. I would like to set a specific color at a specific value on the colorbar. For instance, I would like to have cyan at 4 rather than 0. I don't just want to replace the color there, the goal is to adapt the rest of my colorbar to that value. In my example, I would like the blue shades to be between -6 and 4 and the rest of the colors to be between 4 and 8.
Anyone can help me please ?

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Gaétan Andriano
Gaétan Andriano 2022-12-16

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Jiri Hajek
Jiri Hajek 2022-12-14
Seems like you need to focus on colormap, that's the function which defines your color scale. Or maybe just change the scale for your plot, that way you may be able to shift the color levels, if that's sufficient for you.
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Jiri Hajek
Jiri Hajek 2022-12-14
And what about keeping the whole colorscale fixed at such values, so that zero would be at yellow? In my eyes, that would be the best thing for comparability and generality of the solution - and simplicity, to be sure.
Gaétan Andriano
Gaétan Andriano 2022-12-16
Finally, I found another another way to do it on this link : https://fr.mathworks.com/matlabcentral/answers/1786555-is-it-possible-to-define-colormap-ranges-or-merge-colormaps
Thanks for your help and I hope this link could help other users of Matlab

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