>I want to map an int to a color on a rainbow spectrum, i.e. for an int >n in the range 0..N, low values (near 0) should map to the red end, >and high values (near N) to the blue/violet end. [...] >I've tried a simple scheme of overlapping sines, but this resulted in >too much red and blue, and no indigo/violet.
Consider using an HSV->RGB conversion function. Saturation (S) and value (V) should remain constant, while Hue (H) varies to get your rainbow effect. -- Andrew McNamara, Senior Developer, Object Craft http://www.object-craft.com.au/ -- http://mail.python.org/mailman/listinfo/python-list
