added slewing correction by data

[u/mrichter/AliRoot.git] / TRD / AliTRDtrackerDebug.cxx

diff --git a/TRD/AliTRDtrackerDebug.cxx b/TRD/AliTRDtrackerDebug.cxx
index 5ae3cf343004a93c0ae97ba32731974648d42795..4c7c2b44dd33152f1d38d7706ff6d2d589829457 100644 (file)
--- a/TRD/AliTRDtrackerDebug.cxx
+++ b/TRD/AliTRDtrackerDebug.cxx
@@ -74,13 +74,6 @@ AliTRDtrackerDebug::~AliTRDtrackerDebug()
 }
 
 
-//____________________________________________________
-void AliTRDtrackerDebug::Draw(Option_t *) 
-{
-// steer draw function
-}
-
-
 //____________________________________________________
 Bool_t AliTRDtrackerDebug::Init()
 {
@@ -279,7 +272,9 @@ void AliTRDtrackerDebug::ResidualsTrackletsTrack() const
       dzdx = tracklet[ip].GetZref(1);
 
     // restore tracklet
-    tracklet[ip] = (*fTrack->GetTracklet(ip)); 
+    AliTRDseedV1 *ptr(NULL);
+    if(!(ptr = fTrack->GetTracklet(ip))) continue;
+    tracklet[ip] = (*ptr);
 //             for(int ic=0; ic<AliTRDseedV1:knTimebins; ic++){
 //                     if(!(c = tracklet[ip].GetClusters(ic))) continue;
 //                     Double_t xc = c->GetX(), yc = c->GetY(), zc = c->GetZ();