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Use abslolute colormap scale.

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Raldi
Raldi on 23 Apr 2013
Hi everyone, I have a quick question. Lets assume that we have a two dimentional matrix and each of its values represents the temperature of that point in a rectangular plate. How can i plot that matrix so as values of 23 and below are plotted with a blue color and values of 47 and up are ploted in red. The inbetween values are plotted using gradiends of those colors just as the normal colormap would?

Accepted Answer

Iman Ansari
Iman Ansari on 23 Apr 2013
Edited: Iman Ansari on 23 Apr 2013
Hi.
[x,y]=meshgrid(-7:.02:7);
f=x.^2+y.^2;
imshow(f,[23 47])
colormap(jet)

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