How to display a color bar in Matlab as shown below

Hello, experts.

I want to draw a color bar with discontinuous and regular intervals like the first picture above.

However, it would be best to draw a continuous color bar like the second picture. Is there a solution?

Answer 1

[Aquatris]

You can call the colorbar function with the desired tick values

Z = peaks;
contourf(Z)
colorbar('ticks',[-6:0.5:8])

Answer 2

[Kunal Kandhari]

you can use the 'colorbar' function. This allows you to represent both types of intervals effectively.

colorbar('ticks',[0.3:0.05:0.5])

read more about it here:

colorbar: https://in.mathworks.com/help/matlab/ref/colorbar.html

Answer 3

[Angelo Yeo]

Small size of colormap leads to discrete-looking colorbar.

surf(peaks)
cmap = jet(10);
colormap(cmap)
colorbar;