logarithmic scale

teqy

hello : )

I have used the 'scale' object before which is great, but I wonder if there is a logarithmic scale object under another name i have missed that has preset response curves or a curve that can be plotted on a graph by the user allowing for a scale result that is not so linear.

The other alternative I see is to make lots of individual splits and scale objects to create a logarithmic result, but I was hoping for a more efficient and tidy solution.perhaps someone has done something like this before?

thanks for any help. : )

Nikolas K

Hello teqy,

the [scale] object, can use an exponential base to have a more "curved" effect other than a linear output! may you could use it for what you want!

Nickolas

brendan mccloskey

There are a few Max objects that will 'do' log maths, the simplest being [scale], [pow] and [expr]:

Max Patch

Copy patch and select New From Clipboard in Max.

Brendan

mudang

[expr] also has log10 and log (natural log).

If you want to draw your mapping by hand you can use [table].

Zachary Seldess

Hi teqy,

Here's an abstraction that you may find helpful.

best,
Zachary

1501.z.scale.zip

zip

srs

Zachary - this object is great. Thanks for sharing..

dtr

about time that scale object got patched. tanx alot!

Zachary Seldess

Thanks srs and dtr. Glad you like it. I have a similar version of zmap, and other abstractions here: http://www.zacharyseldess.com/z.abstractions.html

best,
Zachary

Meng Qi

Thank you Zachary for the abstractions!

$Adam

FYI, there is a thread that has been started a while ago with the intention of summmarizing simple mapping methods that maxers know about: https://cycling74.com/forums/re-mapping-a-range-of-numbers-add-your-tricks-here

Cheers,
Ádám

coralie

Thank you Zachary, just what I needed! A newbie question: are these objects written in C?

Mr Fold

Thanks Zachary- Of course your z.scale is exactly what I was looking for.

Any ideas why the standard scale object is so hard to use (the 5th argument log part)? I see it has been updated, and there is now a classic verse modern version of the log implementation (toggle-able via attribute)- but couldnt get the standard log curve I was after out of it no matter what I did with it. The curve I was after was the one I get with your z.scale using 2. as the log value (as per your help patch).

Just adding this post as it seems likely they fixed up the standard scale object, I just still cant work it out...

Cheers!

~Fold