ANN: Kaleidoscopes for all seasons

[Terry Judd]

Thanks Jim - impressive (and fun)!

Terry...

On 14/03/09 3:45 PM, "James Hurley" <jhurley0305 at sbcglobal.net> wrote:

> On the theory that one cannot have too many cookies (the real kind)
> or kaleidoscopes (the artificial kind) in one's  life, I  here offer
> my final (I hope) entry in the latter category.
> 
> It features two different methods, each with its own advantages. One
> can draw or paint the figures (the latter thanks to critical input
> from Bernd Niggemann.)
> 
> If the pattern  is drawn (using Run Rev graphic lines) the resolution
> is quite good but the coloration is limited. If the pattern is
> painted (using the curve pen  tool) the resolution is not as clean,
> but there is more flexibility in the choice of color along  the line,
> something that cannot be done with a graphic line.
> 
> I found a somewhat unsatisfactory solution to my earlier post
> requesting a formula to translate color frequency into RGB color
> coefficients. I found  an image of the color spectrum on the  web. It
> was a rectangle ranging from red on the left to violet on the right.
> By extracting the first line of imagedata  I obtained the RGB numbers
> for the spectrum.  This list of 400 lines of RGB data was inserted
> into a custom card property. As one draws out a line in the
> Kaleidoscope the colors are drawn sequentially from this list so that
> the line ranges (relatively smoothly) from red through the spectrum
> to violet. It is not as smooth as I would like, but it was quick and
> painless.
> 
> To see all these wonders, run this in the message box:
> 
> go stack url  "http://www.jamesphurley.com/CollidingScopes.rev"
> 
> Jim  Hurley
> 
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