Click and drag to draw lines on the left grid! Download as Line Drawing

Alternatively, choose a test image:

Or, upload a pre-made line drawing:

Show grid: x-range: to y-range: to
F(x,y) = (p(x,y), q(x,y)) where:
p(x,y) = x2 + xy + y2 + x + y
q(x,y) = x2 + xy + y2 + x + y
   Source: https://github.com/RhiannonMichelmore/darcy-transforms