path plot dtms   dxcm   delay it fps
Check "plot" to draw V(t) values at the blue circle position. Press mouse button to move the circle. In 3 seconds the script begins to plot the path of the spiral wave tip. It makes 2 it time steps per frame. The script traces h-gate tip. The fastest m-gate tracing is more tangled.

TNNP model. Spiral tip dynamics

On 2D plane V values are displayed by the red color. 4 xs values are displayed by the green color. This script uses simple explicit algorithm and 1024x1024 float32 textures with the Neumann (CLAMP_TO_EDGE) boundary conditions.
Heart rhythms     updated 3 June 2012