2D plot in 3d Scene

Hi! For scientific purpose I need a 2D plot Volts/seconds in front of active camera. Is it possible plot a graph in blender using python? Or should I add it after rendering with a video editor software?

any tips for this problem?

You can do it in several ways:

a) Create a mesh using the data (I have created a pie script like this)
b) Generate a Grease Pencil stroke with the data