double zMin = Math.min(c0[2], c1[2]);
double zMax = Math.max(c0[2], c1[2]);
// Create and register listener
mapCharac =
new PhotonEmissionMapListener(charac, xMin, xMax, xBins,
yMin, yMax, yBins, zMin, zMax, zBins);
mapTotal =
new PhotonEmissionMapListener(charac, xMin, xMax, xBins,
yMin, yMax, yBins, zMin, zMax, zBins);
charac.addXRayListener(mapCharac);
charac.addXRayListener(mapTotal);
if (characFluo != null)