Re: creating bars (bar function): each bar with a different color?

"stephane bourgeois" <stephane.bourgeois@xxxxxxxxxxxxxxxxxxxxxxxxxxx> writes:

> Hello,
>
> let's say I have data representing the counts of three differents
> items:
>
> u=[4 8 1];
>
> when I do bar(u) I get a bar figure of the counts, which is fine.
>
> But what I really want is assigning a different color to each bar.
> The figure edition tool changes the colors of all bars, and does not
> seem to allow a bar-by-bar selection.
>
> Anyone has an idea on how to do it?

Play with the properties of handle graphics. The details will
probably vary by version. With my version, for instance:

h=bar(u);
s=get(h, 'Children');
set(s, 'CData', [1 2 9]);

The colors will reference the current colormap

Or, for direct RGB specification, use Nx3 RGB triplets:

set(s, 'FaceVertexCData', [r1 g1 b1; r2 g2 b2; r3 g3 b3]);



--
Peter Boettcher <boettcher@xxxxxxxxxx>
MIT Lincoln Laboratory
MATLAB FAQ: http://www.mit.edu/~pwb/cssm/
.

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