Le 28/11/2014 15:45, Collewet Guylaine a écrit :
Hello,
I would like to plot an image using a colormap with plotlib (pcolor
function)
In order to "zoom" on the values between A and B, I use the function
caxis([A B])
But I would like also the pixels with values lower than A or greater
than B to be colored in white as the background
Is it possible to do that?
Thanks
Guylaine Collewet
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Hello,
Try this :
colormap([1 1 1;jetcolormap(128);1 1 1])
x=linspace(-1,1,100);
[X,Y]=meshgrid(x,x);
pcolor(cos(%pi*(X.^2+Y.^2)))
shading flat
caxis([0 0.9])
hth
S.
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