tsutek

My dabblings in Max have improved greatly, and I am almost starting to feel comfortable about using Max, and a big thanks for that goes out to all of you! Without this forum I'd still be stuck with trying to get my head around the environment :)

But yeah, have another question to ask y'all (tried searching but no help) - I need to scale a parameter value (using 0. - 1. range for the input) to the range of 0.4 - 10.0, which itself is easy enough.. but the thing is, I want the value of 1. to be exactly at 50% of the parameter range (ie. 0.5 in the controlling input param)!!

Is there an easy way of getting such a range, or do I have to resort to building some kind of param eval logic to the knob? Something like "if value less than 1 -> scale like this / else scale like this"? Sounds like a hack to me.. there has to be a more elegant solution?

But yeah, have another question to ask y'all (tried searching but no help) - I need to scale a parameter value (using 0. - 1. range for the input) to the range of 0.4 - 10.0, which itself is easy enough.. but the thing is, I want the value of 1. to be exactly at 50% of the parameter range (ie. 0.5 in the controlling input param)!! 

nonlinear-scaling-of-parameter-values

https://cycling74.com/forums/re-mapping-a-range-of-numbers-add-your-tricks-here

note that it also would be possible to do this knee thing only with only one [expr] object.

EDIT: Alas, your kneepatches went over my head.. I'll get a mate who's a C programming whiz to explain a bit about expr stuff.. ATM I am using a function object with interpolation to do the scaling for me (as found in one of the patches in that brilliant thread) :p

depends on how you want the function to 'look'. For a smooth function you could try something of the form

we get a and b from the constraints directly, a = 0.4, b = 9.6, then solving for the case when y=1, x=0.5, we get

depends on how you want the function to 'look'.  For a smooth function you could try something of the form

Or in one object: [expr pow($f1,4)*9.6+0.4]

Wow! Much obliged for your assistance. You guys are the best!

Nonlinear scaling of parameter values?