Re: Colomap question

Hmm. My guess would be that it's exactly what you say the
problem is -- I think it may actually be working and you're
just not realizing it? Try setting your colormap, instead
of spectrum RGB, to a random vector like I did. See if it
changes when you replot it. Then set the vector to all red,
or something. Try it again. If the graph is responding, and
showing up in the proper colours, then it's probably
working.

Note that the default colormap IS jet, which, when plotted
over a range, does go from blue -> green -> red. It may
appear to be what you're looking for when in fact your
spectrumRGB vector is correct. I'm not quite sure how to
help you anymore than this, seeing as I can't make my code
break like yours without using the data you are.

"Ken Fleisher" <k-fleisher.donotspamme@xxxxxxx> wrote in
message <flil7l$8o6$1@xxxxxxxxxxxxxxxxxx>...
Thanks for looking into this, but I don't think that's it.
The code where I call the colormap is the one that "does"
work. It's when I next supply scatter with the RGB
triplets
directly that it seems to fail. Now, it's possible that my
RGB values are being displayed correctly, but why then
would
the colormap code display something different (which
happens
to be more like what I expect it to be--namely the pure
spectral colors).

I should also note that I get the same "incorrect" result
when I use the RGB triplets with the plot() function to
fill
in the color below the spectrum. (I'm trying to plot a
spectrum, such as D65, and fill in the graph between the
x-axis and the D65 line with the spectral colors that
correspond to the wavelength.)

Thanks.

Ken

.

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