On Monday 27 March 2006 11:30, Dave Neary wrote:
> Hi John,
>
> making the gradient match exactly the circle will be the tough bit, but
> there's a nice trick to doing something like this:
>
> 1. Create a square image
> 2. Make a gradient that you want to use (I created a gradient with red
> at both ends, and a "HSV clockwise" blend mode)
> 3. Blend fill your rectangle
> 4. Add a white to transparent gradient on the bottom for the center of
> your circle (otherwise it'll look funny)
> 5. Apply a 'polar coordinates' filter
>
> You should get a pinwheel effect. To change the pinwheel, you just need
> to change the gradient.
>
> Cheers,
> Dave.

Sounds good. Will the rays of color be straight or curved?
Perhaps I need to put the gradient on a diagonal for this effect. 
I will experiment!

I should mention that after I create the graphic I will select
just a portion of it for the background. So the center is not
critical.  

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