Idea, Help for Knob code needed

[OstertagM]

I want to program some knob like attached pictures:
Some experience I have to program but I don't how to work this your library.
I hope somebody can help me. It should also work with touch.

if I have based code when I can perhaps adapt it to make all like this:
https://radmie.github.io/ng-knob/

[Bodmer]

You could use the function in this example sketch.

Another option is to adapt the sketch here.