> From: Roger Guay > > Thanks, Scott. I'm not sure I follow what you're saying, so > let me expand on what I'm trying to do: I want a number (25 > to 200) of objects randomly positioned on the stack/window > but favoring the center of the stack/window. Would your > described method do this for me? Sorry for being slow...
You need to devise a simple mathematical function that translates the range of the basic random number generator into the appropriate range, with a curve that has a greater slope at the extremes than in the middle. First, generate a random number with a reasonably big range, subtract the midpoint of the range to get a bipolar value, and then compute a third-order polynomial. The zeroth-order coefficient should be the middle pixel value of the screen, the second-order coefficient should be zero to make it symmetric, the first-order should be small enough that by itself you'd get a range that covers only a small portion of the screen, then the third-order should be sufficient to cover the full width of the screen. You can fiddle the first- and third-order coefficients to adjust the weighting. -- Ciao, Paul D. DeRocco Paul mailto:pdero...@ix.netcom.com _______________________________________________ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
