Fig. 5From: lifex-ep: a robust and efficient software for cardiac electrophysiology simulationsFiber field computed using Laplace-Dirichlet Rule-Based Methods [15, 17] visualized as streamlines: a Slab tissue; b Idealized left atrium; c Idealized left ventricle; d Ventricular slab; e Realistic left atrium; f Realistic left ventricle. The Laplace solution \(\phi\) is the transmural function where \(\phi =0\) on the endocardium and \(\phi =1\) on the epicardiumBack to article page