How can I render plots and graphics that mimic how mathematicians draw diagrams?
For example Look at this shirt:
The diagrams represent 2D and 3D shapes, however they have characteristics of human drawings. The curves are not perfect and exhibit lot's of noise and waviness that a computer rendering would normally not have. If you know any papers regarding this topic, please add them as reference to your answer.
As a side note and perhaps somewhat off topic: Is there a C++ library that can do tex rendering onto textures?