Add a protection against division by zero

[u/mrichter/AliRoot.git] / STEER / AliAlignmentTracks.h

diff --git a/STEER/AliAlignmentTracks.h b/STEER/AliAlignmentTracks.h
index 92976adf1056c4e50cd131a3c50549340aa464c8..396da5671376876b25c95a6f79b421d9b86c442a 100644 (file)
--- a/STEER/AliAlignmentTracks.h
+++ b/STEER/AliAlignmentTracks.h
@@ -54,20 +54,20 @@ class AliAlignmentTracks : public TObject {
   void SetTrackFitter(AliTrackFitter *fitter) { fTrackFitter = fitter; }
   void SetMinimizer(AliTrackResiduals *minimizer) { fMinimizer = minimizer; }
 
-  void AlignDetector(AliGeomManager::ELayerID firstLayer,
-                    AliGeomManager::ELayerID lastLayer,
-                    AliGeomManager::ELayerID layerRangeMin = AliGeomManager::kFirstLayer,
-                    AliGeomManager::ELayerID layerRangeMax = AliGeomManager::kLastLayer,Int_t iterations = 1);
-  void AlignLayer(AliGeomManager::ELayerID layer,
-                 AliGeomManager::ELayerID layerRangeMin = AliGeomManager::kFirstLayer,
-                 AliGeomManager::ELayerID layerRangeMax = AliGeomManager::kLastLayer,
-                 Int_t iterations = 1);
-  void AlignVolume(UShort_t volId, UShort_t volIdFit,
-                  Int_t iterations);
-  void AlignVolumes(const TArrayI *volids, const TArrayI *volidsfit = 0x0,
-                  AliGeomManager::ELayerID layerRangeMin = AliGeomManager::kFirstLayer,
-                  AliGeomManager::ELayerID layerRangeMax = AliGeomManager::kLastLayer,
-                  Int_t iterations = 1);
+  Bool_t AlignDetector(AliGeomManager::ELayerID firstLayer,
+                      AliGeomManager::ELayerID lastLayer,
+                      AliGeomManager::ELayerID layerRangeMin = AliGeomManager::kFirstLayer,
+                      AliGeomManager::ELayerID layerRangeMax = AliGeomManager::kLastLayer,Int_t iterations = 1);
+  Bool_t AlignLayer(AliGeomManager::ELayerID layer,
+                   AliGeomManager::ELayerID layerRangeMin = AliGeomManager::kFirstLayer,
+                   AliGeomManager::ELayerID layerRangeMax = AliGeomManager::kLastLayer,
+                   Int_t iterations = 1);
+  Bool_t AlignVolume(UShort_t volId, UShort_t volIdFit,
+                    Int_t iterations);
+  Bool_t AlignVolumes(const TArrayI *volids, const TArrayI *volidsfit = 0x0,
+                     AliGeomManager::ELayerID layerRangeMin = AliGeomManager::kFirstLayer,
+                     AliGeomManager::ELayerID layerRangeMax = AliGeomManager::kLastLayer,
+                     Int_t iterations = 1);
 
   AliAlignObj* GetAlignObj(UShort_t volid) const {
     Int_t iModule;
@@ -90,7 +90,7 @@ class AliAlignmentTracks : public TObject {
   void ResetAlignObjs();
   void DeleteAlignObjs();
 
-  Int_t LoadPoints(const TArrayI *volids, AliTrackPointArray** &points);
+  Int_t LoadPoints(const TArrayI *volids, AliTrackPointArray** &points,Int_t &pointsdim);
   void  UnloadPoints(Int_t n, AliTrackPointArray **points);
 
   AliTrackFitter *CreateFitter();