[sc-users] Generating non linear ramps

[Batuhan Bozkurt]

Hi,

I'm a bit stuck behind the maths of this. The functionality I want is 
like Max/MSPs curve~ object(which is a non linear ramp generator).

I have a linear ramp going from 0 to 999 let's say. I want to vary the 
slope of this ramp by a control number between -1 and 1. Values between 
0 and 1 should generate  an exponential ramp, if control value is closer 
to 0 then ramp is more linear, moving towards 1, the ramp should be more 
exponential.

Similarly, values between 0 and -1 should produce a logarithmic ramp. 
Closer to 0, more linear the ramp. Moving towards -1 should produce a 
more logarithmically curved ramp.

I'm not sure if the maths behind this is hard. I can almost imagine it 
but when it comes into formulating it, I become stuck.
The control numbers between -1 and 1 are just examples, they can be 
anything of course.
How can I implement this(server side)? Or maybe something like this is 
achievable by some builtin function? I've searched the help files but, 
no joy.

Thanks for your help in advance.

Batuhan