1. A method of mapping a body cavity of a patient, comprising: positioning a first probe carrying a plurality of mapping elements in the body cavity, wherein the plurality of mapping elements are located adjacent a plurality of locations along the body cavity; positioning a second probe carrying a functional element in the body cavity; determining an absolute position of the functional element within a three-dimensional coordinate system; determining a proximity of the-functional element to each of the plurality of mapping elements; determining an absolute position within the coordinate system of each of the plurality of mapping elements based on the absolute position of the functional element and the proximity of the functional element to each of the plurality of mapping elements; generating a map by detecting information local to the body cavity using the plurality of mapping elements and associating the local information to the absolute positions of the plurality of mapping elements; locating the functional element adjacent a location on the body cavity between the plurality of locations, wherein the functional element comprises a mapping element; determining an absolute position of the mapping element within the coordinate system; and detecting information local to the body cavity using the mapping element and associating the local information to the absolute position of the mapping element to refine the map.