- Mother volume changed from ALIC to YOUT1 (defined in SHIL)

- Set higher precision magnetic field integration method,
  AliMagF::PrecInteg() to tracking media.

diff --git a/MUON/AliMUONSt1GeometryBuilderV2.cxx b/MUON/AliMUONSt1GeometryBuilderV2.cxx
index db48d1f8c25c591cb27ba5580d2958f3b1261319..eed1e399538ba5cd4334852ad089fcbc932561b9 100644 (file)
--- a/MUON/AliMUONSt1GeometryBuilderV2.cxx
+++ b/MUON/AliMUONSt1GeometryBuilderV2.cxx
@@ -2468,7 +2468,7 @@ void AliMUONSt1GeometryBuilderV2::CreateMaterials()
   GReal_t maxStepAlu   = fMUON->GetMaxStepAlu();
   GReal_t maxDestepAlu = fMUON->GetMaxDestepAlu();
   GReal_t maxStepGas   = fMUON->GetMaxStepGas();
-  Int_t iSXFLD   = gAlice->Field()->Integ();
+  Int_t iSXFLD   = gAlice->Field()->PrecInteg();
   Float_t sXMGMX = gAlice->Field()->Max();
 
   fMUON->AliMedium(21, "ALU_II$",    41, 0, iSXFLD, sXMGMX, 
@@ -2626,6 +2626,11 @@ void AliMUONSt1GeometryBuilderV2::SetTransformations()
 // Defines the transformations for the station2 chambers.
 // ---
 
+  if (gAlice->GetModule("SHIL")) {
+    SetMotherVolume(0, "YOUT1");
+    SetMotherVolume(1, "YOUT1");
+  }  
+
   SetVolume(0, "SC01", true);
   SetVolume(1, "SC02", true);