map values

jirko · Joined: Dec 15, 2009 Posts: 59

I'm working on a midi class and I have done a little formula to map/scale values, but the code gets very unreadable and pretty long. Isn't there a unit conversation like "map" in Java?

Kassen · Posted: Thu May 13, 2010 12:59 pm Post subject:

Wouldn't a array work?

jirko · Joined: Dec 15, 2009 Posts: 59

Hi Kassen,
what do you mean with an array?

Kassen · Posted: Thu May 13, 2010 5:31 pm Post subject:

Well, a array is a series of numbers (or other things). You can then pick one number by looking it up using a index. A array of 128 elements should be able to "map" (link) a incoming MIDi value to the number or thing you want it to represent.

I don't really know Java, but is that the kind of thing you are looking for?

There is a lot more about arrays than I have time to cover now in the manual, have a look there if that sounds like a good solution. Otherwise we could have a look at exactly how and why your code becomes a mess and see what we could do about that.

witt0191 · Joined: Feb 13, 2008 Posts: 23 Location: UK

I use this class to do midi input conversions rather than using an array based system.

jirko · Joined: Dec 15, 2009 Posts: 59

Hi Kassen,

I know about arrays, but for this kind of job an array is to lavish, I guess.
I was looking for a Ugen like f.e:

map(value, input low value, input high value, output low value, output high value);

It seems there's nothing similar in Chuck?

Hi witt0191,

nice Class, I will take a look at this.
thanks!

Kassen · Posted: Fri May 14, 2010 5:02 am Post subject:

so something like;

jirko · Joined: Dec 15, 2009 Posts: 59

thanks kassen! Sometimes I need numbers outside the midi range, this seems to work for that case:

Kassen · Posted: Tue May 18, 2010 12:53 am Post subject:

Happy to have been of help Smile