Colormap demos?

[Søren Hauberg]

Hi All

I often have problems remembering how different colour maps work ("does
red mean a high or a low value?"), so I'd like to have an easy way of
visualising the maps. If I made a patch adding demos to the various
colour map functions ('jet', 'hsv', ...) that all do something like this

    ## Show the 'hsv' colormap as an image
        image (1:64, linspace (0, 1, 64), repmat (1:64, 64, 1)')
        axis ([1, 64, 0, 1], "ticy", "xy")
        colormap hsv

would such a patch be accepted?

Soren