Transformation Graph (MIDI Velocity Curve)

There is no out-of-the-box Cocoa control that shows graphs. You will need to code it yourself or find a 3rd-party control. Probably lots of 3rd-party graphing controls for OS X, fewer for iOS. Core-plot is one example that supports both OS X and iOS. I have no idea whether this offers the level of interactivity you need to "grab the line and make a custom curve."

http://code.google.com/p/core-plot/

I hope you have solved this problem already. If not (and for further people having that problem, I has having it too) I found this on the internet:

Here’s how to customize velocity graphs in Apple MainStage.

1. Click on the channel strip you want to customize.
2. Click on “MIDI Input” then “Velocity Input” under “Velocity Scaling”. This effects the full range of the keyboard. If you want to customize a smaller section of the keyboard, use “Note Input” velocity scaling instead.
3. Edit the velocity graph by double clicking on the graph and setting your X and Y points, or by customizing one of the preset curves.

Found it in: http://brianli.com/mainstage-musical-theatre-customizing-velocity-curves/

Please plan your spam better. He wants to add the functionality to his program, not do it in MainStage, that was just an example.

I only was trying to help. I had that problem and searching on google it took me here.

Now I read again the question and I saw what you are saying. Not everyone is English speaker in this world. So you can save your sarcasm. It's not spam, maybe this can help other people. I have no interest in that web.

Thanks for nothing

You just joined to respond (incorrectly) to a two year old thread, and posted a link to your site. Even if *your* intentions are pure, doesn't that sound like spam to you?

It's not my f**** page, I have nothing to do. simply cite sources, which is lost in the internet today.

Thanks to: translate.google.com