Just a guess, didn't tried it. If you add the three RGB values of the mousecolor, white (light) would be 765 and black (dark) 0. Somewhere around 382 you can switch from black to yellow text. Tiemo
> -----Ursprüngliche Nachricht----- > Von: use-livecode [mailto:use-livecode-boun...@lists.runrev.com] Im Auftrag > von William Prothero > Gesendet: Dienstag, 7. Oktober 2014 21:59 > An: Use-livecode Use-livecode > Betreff: Convert rgb to lightness or darkness > > Folks: > Im putting text on an image that will be turned into a snapshot. The image > goes from light to dark. The text is a one or two digit integer. I want it to > show up on the image. For dark parts of the image, I set it to yellow, but for > light parts of the image, I want to set it to black. Is there a simple formula > for changing an rgb value into a darkness value that will let me choose > between yellow or black text? I dont want to just set the ink of the text > because sometimes I write the text over itself, which diminishes the effect. > > Thanks, > Bill > > William A. Prothero > http://es.earthednet.org/ > > _______________________________________________ > 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 _______________________________________________ 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
