+
+//----------------------------------------------------------------------
+Int_t AliITSRecPoint::GetNpixels() const {
+//
+// returns the number of pixels used for the SPD clusters
+//
+
+ if(fLayer > 1) return -1;
+ else return fType;
+
+}
+
+//----------------------------------------------------------------------
+Int_t AliITSRecPoint::GetSPDclusterType() const {
+//
+// returns an Int_t with encoded information on cluster size
+// type <= 16: cluster type identifier according to conventional numbering
+// type > 16: Npixels+1000*Ny+1000000*Nz
+//
+
+ Int_t type = -1;
+ if(fLayer > 1) return type;
+ else {
+
+ switch (fType) {
+ case 1 : type = 1 ;break;
+ case 2 : if(fNy == 2) type = 2;
+ else type = 3;
+ break;
+ case 3 : if(fNy == 3) type = 4;
+ else if(fNz == 3) type = 6;
+ else type = 5;
+ break;
+ case 4 : if(fNz == 1) type = 7;
+ else if(fNz == 2 && fNy == 2) type = 8;
+ else if(fNy == 2 && fNz == 3) type = 11;
+ else if(fNy == 3 && fNz == 2) type = 9;
+ else type = 15;
+ break;
+ case 5 : if(fNy == 3 && fNz == 2) type = 10;
+ if(fNy == 2 && fNz == 3 ) type = 12;
+ if(fNy == 5) type = 16;
+ else type = fType+1000*fNy+1000000*fNz;
+ break;
+ case 6 : if(fNy ==3 && fNz == 2) type = 13;
+ if(fNy ==2 && fNz == 3) type = 14;
+ else type = fType+1000*fNy+1000000*fNz;
+ break;
+ default: type = fType+1000*fNy+1000000*fNz;
+ break;
+ }
+
+ return type;
+ }
+}
+
+//----------------------------------------------------------------------
+Int_t AliITSRecPoint::GetSDDclusterType() const {
+// returns an Int_t with encoded information on cluster size
+// Byte1 = fNz Byte0=fNy, other two bytes empty for extra information
+// max. allowed cluster size = 255
+ Int_t typ=(fNz&0xFF)<<8;
+ typ+=fNy&0xFF;
+ if(fDriftSide==1) typ+=1<<16;
+ return typ;
+}
+//----------------------------------------------------------------------
+void AliITSRecPoint::DecodeSDDclusterType(Int_t cluType, Int_t &cluSizAn, Int_t& cluSizTb, Int_t &drSide){
+// Extract cluster sizes and drift side from cluster type
+ cluSizTb=cluType&0xFF;
+ cluSizAn=(cluType>>8)&0xFF;
+ drSide=(cluType>>16);
+ return;
+}
+//----------------------------------------------------------------------
+Int_t AliITSRecPoint::GetSSDclusterType() const {
+// returns an Int_t with encoded information on cluster size
+// Byte1 = fNz Byte0=fNy, other two bytes empty for extra information
+// max. allowed cluster size = 255
+ Int_t typ=(fNz&0xFF)<<8;
+ typ+=fNy&0xFF;
+ return typ;
+}
+