Electroanatomic mapping of the epicardium includes acquiring first and second electroanatomic data from first and second epicardial locations, acquiring a closed 3-dimensional image of the epicardium and modeling the image as a 3-dimensional triangular mesh. The first and second locations align with front-facing triangles and rear-facing triangles of the mesh. The second locations are projected from the rear-facing triangles onto the closest front-facing triangles. The first and second electroanatomic data are displayed on the front-facing triangles and the closest front-facing triangles, respectively.