MATLAB: Color as height

colorheight

I have a two dimensional plot of points on the plane. However, to every point there is also one real positive number assigned. One way to plot this additional information would be as a 3-dimensional plot, but I want to plot the points in the plane and to display their height as a color (for example red – high and blue – low). Does someone know how I can do that?

Best Answer

Depending on exactly what you want you could use "scatter" or "pcolor". See the help for those to determine which fits your wishes better - or find pointers to other functions.

HTH

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I'm not sure I follow, do you just mean something like this?

z=peaks;
surf(peaks)
hold on
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data = rand(120,3)
figure, hold on
plot(data(:,1),'go')
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plot(data(:,3),'bo')
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If you wanted, say, filled circles with a white outline:

figure, hold on
plot(data(:,1),'wo','MarkerFaceColor','g')
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