A system for sorting a plurality of electrophysiological signals from a graphical representation of an electrophysiology map generated by an electroanatomical mapping system and including a plurality of measured electrophysiology data points stored in association with location information at which the electrophysiology data points are measured, the system comprising: a sorting and visualization processor configured to: receive a user input defining a pathway of a virtual catheter relative to the electrophysiology map by tracing a pathway on the electrophysiology map , and receive a user input specifying a number of virtual electrodes for the virtual catheter; define the virtual catheter including a desired number of virtual electrodes thereon, corresponding to the user input; identify one or more electrophysiology data points of the plurality of electrophysiology data points relevant to electrical activity at the plurality of virtual electrodes by applying one or more relevance criteria to the plurality of electrophysiology data points; and if one or more relevance criteria vis-à-vis the virtual electrodes are satisfied output a graphical representation of one or more electrophysiological signals corresponding to the identified one or more electrophysiology data points, wherein an order in which the sorting and visualization processor outputs the graphical representation of the one or more electrophysiological signals corresponding to the identified one or more electrophysiology data points corresponds to a direction of the pathway of the virtual catheter . a sorting and visualization processor configured to: receive a user input defining a pathway of a virtual catheter relative to the electrophysiology map by tracing a pathway on the electrophysiology map , and receive a user input specifying a number of virtual electrodes for the virtual catheter; define the virtual catheter including a desired number of virtual electrodes thereon, corresponding to the user input; identify one or more electrophysiology data points of the plurality of electrophysiology data points relevant to electrical activity at the plurality of virtual electrodes by applying one or more relevance criteria to the plurality of electrophysiology data points; and if one or more relevance criteria vis-à-vis the virtual electrodes are satisfied output a graphical representation of one or more electrophysiological signals corresponding to the identified one or more electrophysiology data points, receive a user input defining a pathway of a virtual catheter relative to the electrophysiology map by tracing a pathway on the electrophysiology map , and receive a user input specifying a number of virtual electrodes for the virtual catheter; define the virtual catheter including a desired number of virtual electrodes thereon, corresponding to the user input; identify one or more electrophysiology data points of the plurality of electrophysiology data points relevant to electrical activity at the plurality of virtual electrodes by applying one or more relevance criteria to the plurality of electrophysiology data points; and if one or more relevance criteria vis-à-vis the virtual electrodes are satisfied output a graphical representation of one or more electrophysiological signals corresponding to the identified one or more electrophysiology data points, wherein an order in which the sorting and visualization processor outputs the graphical representation of the one or more electrophysiological signals corresponding to the identified one or more electrophysiology data points corresponds to a direction of the pathway of the virtual catheter . <EOS>