Peter, now I got it ... You could use finer steps for the whole scrollbar. The use, say between -2 and 2 these finer steps, may be steps of size 0.1, and if the value is greater smaller than -2 or greater than 2 use a value rounded to the next integer or fraction of an integer.
Example: Scrollbar setting in LC8, startvalue=-5, endvalue=5, numberformat=0.0 The following yields between -2 and +2 steps of 6 added to defaultSetting between -5 and -2 steps of 30 added to defaultSetting (use n=2) That is, -- x is the thumbpos -- n is the denominator in the steps 60/n ( n is one of 1,2,3,4,5,6) function factorFromSlider n,x if abs(x) < 2 then return defaultSetting + round(60*x) else return defaultSetting + 60*round(n*x)/n -- 60 dividable by n --> = defaultSetting + 30*round(2*x) for n=2 end if end factorFromSlider You can find an explanation for "round(n*x)/n" here http://forums.livecode.com/viewtopic.php?p=112072#p112072 If I understood correctly, you have with the above function essentialy what you wanted, at least I hope so. Hermann p.s. If using LC 5-6-7-8 "in one" you could use a scrollbar -50 to 50 with steps of 1 and function factorFromSlider5678 n,x if abs(x) < 2 then return defaultSetting + round(6*x) else return defaultSetting + 6*round(n*x)/n --> = defaultSetting + 3*round(2*x) for n=2 end if end factorFromSlider5678 > Hermann, > > Reading your last message again…. > > The slider is marked in absolute increments of -5, -4, -3, -2, -1, > 0, 1, 2, 3, 4, 5. > > The user moves the thumb to a position with a corresponding output > of one of those numbers. That position is saved in the preferences. > > I take the output from the slider and translate it to a timing > change. The user sees an animation synced with music notation happen > sooner or later on the screen. In the current linear form, that > change is precisely the same for each increment. But I have found > that most of the adjustment is needed around the zero mark, mainly > having to do with the speed of the user’s computer, so I need finer > adjustment there. > > If a user really wants to change the timing a lot, he can do so by > moving it to 4 or 5—it’s all subjective for each user—but the point > of the adjustment is to allow everyone to get it just right. > > The number output from the algorithm is an offset to trigger the > animation earlier so after processing is done the animation looks > like it is in sync. > >> What is your target output for example at -300, -60, 60 and 300 >> and some other values in between? What numbers do you wish to see >> there? > > > It seems for Windows users, zero (-300 output) makes things happen > too soon, and moving it to -1 (-360 output) makes it late. I could > change the slider to show a range of -10 to +10 to keep the visual > indication of exact linear change with more precision, but I’m > choosing to try to do it in a non-linear fashion and keep the user > interface simple. > > Peter _______________________________________________ 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