You can press the following keys while running the windowed version (built with make win) to change the code’s behavior:

 key ’d’ : plot the density field

 key ’r’ : plot the radial velocity field

 key ’t’ : plot the azimuthal velocity field (residual with respect to Keplerian velocity).

 key ’v’ : plot the vortensity field

 Space bar key : pause / restart

 key ’u’ : toggle update.

 key ’f’ : toggle fullscreen

 key ’c’ : toggle Cartesian / polar representation (disabled in fullscreen mode)

 key ’s’ : toggle centering on planet / star (in polar representation only)

 key ’+’ / ’-’ : zoom in, zoom out (polar representation only)

 key ’p’ : change color palette