A method, including collecting first data samples ofelectrical potentials produced by a heart at a sequence ofsampling times, and collecting second data samples of ancillarydata with respect to the heart at the sampling times. Based onthe first and second data samples, a trace of the electricalpotentials collected at the sampling times is presented, on adisplay, the trace having a pseudo-three-dimensional (3D)characteristic that varies responsively to the ancillary datacollected at each of the sampling times.
