added comments

SimG4Core/PrintGeomInfo/test/python/g4OverlapCheck_cfg.py

@@ -2,26 +2,31 @@
 
 process = cms.Process("G4PrintGeometry")
 
-#process.load("Geometry.CMSCommonData.cmsExtendedGeometry2015devXML_cfi")
 #process.load('Configuration.Geometry.GeometryExtended2015_cff')
-process.load('Configuration.Geometry.GeometryExtended2017_cff')
+#process.load('Configuration.Geometry.GeometryExtended2017_cff')
+process.load('Configuration.Geometry.GeometryExtended2017NewFPix_cff')
 
 from SimG4Core.PrintGeomInfo.g4TestGeometry_cfi import *
 process = checkOverlap(process)
 
-process.MessageLogger.destinations = cms.untracked.vstring("QuadRegion.txt")
+process.MessageLogger.destinations = cms.untracked.vstring("Tracker2017.overlaps")
 
 # enable Geant4 overlap check 
 process.g4SimHits.CheckOverlap = True
 
-# Geant4 overlap check volume/conditions 
+# Geant4 overlap check conditions 
 process.g4SimHits.G4CheckOverlap.Tolerance  = cms.untracked.double(0.0)
 process.g4SimHits.G4CheckOverlap.Resolution = cms.untracked.int32(10000)
-process.g4SimHits.G4CheckOverlap.RegionFlag = cms.untracked.bool(True)
-process.g4SimHits.G4CheckOverlap.gdmlFlag   = cms.untracked.bool(True)
-process.g4SimHits.G4CheckOverlap.PVname     = ''
-process.g4SimHits.G4CheckOverlap.LVname     = ''
-process.g4SimHits.G4CheckOverlap.NodeNames  = cms.vstring('QuadRegion')
+# tells if NodeName is G4Region or G4PhysicalVolume
+process.g4SimHits.G4CheckOverlap.RegionFlag = cms.untracked.bool(False)
+# list of names
+process.g4SimHits.G4CheckOverlap.NodeNames  = cms.vstring('Tracker')
+# enable dump gdml file 
+process.g4SimHits.G4CheckOverlap.gdmlFlag   = cms.untracked.bool(False)
+# if defined a G4PhysicsVolume info is printed
+process.g4SimHits.G4CheckOverlap.PVname     = 'Tracker'
+# if defined a list of daughter volumes is printed
+process.g4SimHits.G4CheckOverlap.LVname     = 'Tracker'
 
 # extra output files, created if a name is not empty
 process.g4SimHits.FileNameField   = ''