On 2D plane positive u values are displayed by the red color.
v values are displayed by the green color.
This script uses simple explicit algorithm and
512×512 float32 textures with the Neumann (CLAMP_TO_EDGE)
boundary conditions. It makes 2 it time steps dt per frame.
In 3 seconds the script begins to plot the path of the spiral wave tip.
Heart rhythmsupdated 10 June 2012