*********** > Date: Mon, 9 Jun 2003 10:16:33 -0600 > From: David Squance <[EMAIL PROTECTED]> > Subject: Random colour > > Is there a simple way to randomize color of text and background of a field > without getting a combination which is unreadable? ---------- It seems like this was gone through a few months back, maybe you should check the archives.
Well, other than ending up with the same color for both, it's matter of what you beleive is unreadable. Complimentary and clashing colors have standards, but then you add contrast and brightness which complicates the matter. You're dealing with 65536 possible color combos in standard SuperCard CLUTs. The matter can get very complicated because of how we see color. For example a medium color of red shows up bright on a black background, but not on a medium blue, so making lists of "dark" colors and 'light' colors won't necessarily work. Perhaps you could develop a sliding 'spread gap', i.e. differences that work. IOW, the gap between contrasting values remains the same, and one of your random functions will need to mathematically slide it back and forth in the list, making sure there are some colors left on either end, then two more to randomly select colors from those at each end, i.e., one from the darker end and one from the lighter end. Then, finally, a simple one to decide which of the two derived from the above will be text and which background. HTH to get you started, Ken N. _______________________________________________ use-revolution mailing list [EMAIL PROTECTED] http://lists.runrev.com/mailman/listinfo/use-revolution
