I'm building music software, and I need a breakpoint-function editor. I've searched quite a bit with little success. (lots of graphing libraries, but most seem to be focused on network graphs, or only graph math functions)
I'm looking for something that supports the interactive addition, deletion, and editing of points, and works with interpolation. It be fantastic if it did curves as well, but linear is okay. FOSS is a requirement. I've built a makeshift solution, but I suspect that someone has built a nice, pannable, scaleable version out there, and I hate to reinvent the wheel. If anyone can recommend a good library, I'd be really grateful.