Hi Phil,

I'm NOT a color expert, but can't you just add the RGB values and divide by 2 to
come up with the RGB numbers to use for the overlap? It seems too easy, but? If
that works, then it would seem to work for a multiple overlap too; just find the
average?

Hope I didn't expose my ignorance too much; but, if it weren't for a List like
this, that would be the first thing I would try.

Joe Wilkins

Phil Yates wrote:

> One for you colour experts ...
>
> I want to use the toolbox to draw a filled circle, using the foreground colour.
> Let's say that I've set the RGB to 65535,40000,40000.
>
> The I want to draw another filled circle, perhaps with an RGB of
> 40000,40000,65535.
>
> Now, if the two circles overlap, I want to AUTOMATICALLY :
>
> 1. Work out what the overlap is, and then
>
> 2. Fill in the overlap area with a blend of the two colours defined above.
>
> Suggestions, anyone ?
>
> Phil.
>
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