We are about to switch to a new forum software. Until then we have removed the registration on this forum.
Trying to run processing to render graphs on a web server runs into the problem that the machine is headless. While it is easy to create an off-screen renderer, it is not easy to stop the window in the first place.
We could just use the PDF renderer, but since we don't want pdf files it seems like an ugly approach.
I'm willing to edit the code and test a nicer change. Can any developer of the PApplet comment on how to turn off window creation?