1. A method for determining electrophysiology properties of tissue, the method comprising: acquiring electrical signal data from a plurality of electrodes of one or more catheters; determining at least one electrode clique from the plurality of adjacent electrodes; computing local conduction velocity vectors for the at least one electrode clique; determining at least one catheter orientation independent indicator from which to classify an arrhythmia source based on one or more of an angular dependence parameter associated with a flow field of the local velocity conduction vectors, an eccentricity parameter reflecting the uniformity of local conduction velocity, and divergence and curl-like sums or closed path integral parameters associated with the local velocity vectors; and displaying a rhythm classification responsive to catheter movement thereby facilitating identification of types and causes of arrhythmia disorders.