Thanks. I would love to be adding more to SwiftVis2, but time has been in short supply. I will definitely consider 3D, but it is hard to do well, especially in regards to how to display axes along with the data in ways that aren’t more confusing than helpful.
I completely agree that Scala needs a good data visualization library. That is exactly why I started writing SwiftVis2. Unfortunately, I just haven’t had any time to take it beyond the opening stages.