Represent Data in Circle with Colormap
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I have a set of data in a 1x48 array. This data represents temperature values of radial slices of a circle (Basically the temperatures of 48 slices of pie around the same pie). I need to find a way to translate those temperature values from the array into a circular plot that would represent a temperature profile of sorts. So far, I have found the following color wheel code that is close to what I desire, with the large exception of not being able to input data:
N = 48;
c = colormap(jet(48));
th = linspace(0, 2*pi, N);
r = 0.5:0.5:1;
[TH,R] = meshgrid(th,r);
[X,Y] = pol2cart(TH,R);
C = bsxfun(@times,(X + Y),th);
figure(1)
surf(X,Y,C)
view([0 90])
axis square
grid off
This code produces the base shape for what I need to achieve, but I need the colormap to represent data that I can input, instead of just arbitrary values. It would be ideal to assign the selected data to each of the "pie slices" created by the linspace function, but I can't seem to figure it out. Thank you in advance.
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ANKUR KUMAR
am 2 Feb. 2018
You can define your own colormap or you can use predefined colormaps too
colormap jet(15) %if you want 15 colors on the colorbar
colormap cool(20) %20 colors on the colorbar
Define your own colormap:
CC=[238,233,233;216,192,216;255,193,193;238,106,167;205,0,205;...
138,43,226;131,111,255;30,144,255;...
0,238,118;69,139,0;...
238,118,0;255,0,0]
colormap(CC/255)
colorbar
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