Colorbar with three colors

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Yunhui He
Yunhui He 2017-10-3
回答： KSSV 2017-10-3
I am using surf plot the pictures. I want to see the colorbar at the right-hand side. But the transition of the color is not so obvious. I want to see from green to red, and there is another color in the middle. How can I do this?
Thanks!
  1 个评论
Walter Roberson
Walter Roberson 2017-10-3
Are there only 3 colors in the plot, or is it that you only want three colors to appear in the colorbar ?
If you are already doing colormap() in order to activate a colormap of three colors, then colorbar() should adjust automatically.

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采纳的回答

KSSV
KSSV 2017-10-3
Z = peaks(100) ;
surf(Z)
shading interp
cmap = [1 0 0 ; 0 1 0 ; 0 0 1] ;
colorbar
colormap(cmap)

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