If i have a float, for example 0.568 (float is guaranteed to be 0 -> 1). Is there a way to convert that to RGB values (in double [1.0, 1.0, 1.0] or int [255 255 255]) under the current matlab colour scheme (ie. normal, hot, hsv, etc)?
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Fantastic Mr Fox
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You can try this:
f = 0.568; % your float
cm = colormap % returns the current color map
colorID = max(1, sum(f > [0:1/length(cm(:,1)):1]));
myColor = cm(colorID, :) % returns your color
The result for f = 0.568 is
myColor =
0.8125 1.0000 0.1875
H.Muster
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Look at the help for jet.
jet.colors(n) returns an array of n color values spanning the range of the color function, jet in this case. Now all you do is scale/map your data to that 1:n range. This is a good way to get/tweak color maps. I used to do it all the time.
Carlos
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Is that an actual command, because i get Undefined variable "jet" or class "jet.colors". when i use it. – Fantastic Mr Fox Jul 25 '12 at 04:59
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Sorry. Try this: require(graphics) – Carlos Jul 25 '12 at 05:09