for (i=0; i<fNmul[cath]; i++) {
// pointer to digit
digit =(AliMUONDigit*)
- (fDigits[cath]->UncheckedAt(cluster->fIndexMap[i][cath]));
+ (fDigits[cath]->UncheckedAt(cluster->GetIndex(i,cath)));
// pad coordinates
ix = digit->PadX();
iy = digit->PadY();