Re: Math question

2017-01-24 Thread Jens Alfke
> On Jan 24, 2017, at 11:36 AM, Eric E. Dolecki wrote: > > Never mind on that one. with a 0-100, it's super simple. But if it's 0 - 15 > that could be quite different. I'll noodle on that. The formula I gave is general purpose for mapping any input range to any output range. —Jens _

Re: Math question

2017-01-24 Thread Eric E. Dolecki
Never mind on that one. with a 0-100, it's super simple. But if it's 0 - 15 that could be quite different. I'll noodle on that. On Tue, Jan 24, 2017 at 1:57 PM Eric E. Dolecki wrote: > Thanks so much, that works perfectly! > > Another quick question. > > distance of 100 = minimum value (say 0) >

Re: Math question

2017-01-24 Thread Eric E. Dolecki
Thanks so much, that works perfectly! Another quick question. distance of 100 = minimum value (say 0) distance of 200 = maximum value (say 100) How can I apply that? I plan on Int for this value. On Tue, Jan 24, 2017 at 1:52 PM Saagar Jha wrote: > Not completely sure if this is what you want

Re: Math question

2017-01-24 Thread Jens Alfke
> On Jan 24, 2017, at 10:45 AM, Eric E. Dolecki wrote: > > So I am looking for a number between 100 and 200 which ends up being > between 1.0 and 3.0. Are you talking about linear interpolation? That would be Set up the constants, as given in your email: let dist0 = 100, dist1 = 200

Re: Math question

2017-01-24 Thread Saagar Jha
Not completely sure if this is what you want, but I think your “scale” would be: scale = (distance - minDistance) / (maxDistance - minDistance) * (maxScale - minScale) + minScale In this case, scale = (distance - 100) / 100 * 2 + 1 Saagar Jha > On Jan 24, 2017, at 10:45 AM, Eric E. Dolecki w

Math question

2017-01-24 Thread Eric E. Dolecki
I have a situation where the distance of an onTouchesBegan in iOS produces a scale for an object. min distance of 100 = scale of 1.0 max distance of 200 = scale of 3.0 So I am looking for a number between 100 and 200 which ends up being between 1.0 and 3.0. I can get the distance easily enough, b