Fixed bugs that made histograms being drawn on top of each other

[u/mrichter/AliRoot.git] / HLT / EVE / AliHLTEveITS.cxx

diff --git a/HLT/EVE/AliHLTEveITS.cxx b/HLT/EVE/AliHLTEveITS.cxx
index 9e937427a52eeaebf2e182ab6ca605c57dbb6ee4..0f6ef651638139103927fd024f42cfe249da4eca 100644 (file)
--- a/HLT/EVE/AliHLTEveITS.cxx
+++ b/HLT/EVE/AliHLTEveITS.cxx
@@ -52,7 +52,10 @@ void AliHLTEveITS::ProcessBlock(AliHLTHOMERBlockDesc * block) {
   //See header file for documentation
  
   if ( block->GetDataType().CompareTo("ROOTHIST") == 0 ) {
-    if(!fCanvas)  fCanvas = CreateCanvas(Form("%s QA",fName.Data()), Form("%s QA", fName.Data()));
+    if(!fCanvas) {  
+      fCanvas = CreateCanvas(Form("%s QA",fName.Data()), Form("%s QA", fName.Data()));
+      fCanvas->Divide(3, 2);
+    }
     AddHistogramsToCanvas( block , fCanvas, fHistoCount);
   } 
 
@@ -66,7 +69,6 @@ void AliHLTEveITS::ProcessBlock(AliHLTHOMERBlockDesc * block) {
 }
 
 
-
 void AliHLTEveITS::UpdateElements() {
   //See header file for documentation
   if(fCanvas) fCanvas->Update();