Gabriele Cosmo
81 lines
2.6 KiB
Python
Executable File
81 lines
2.6 KiB
Python
Executable File
#!/usr/bin/python3
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# ==================================================================
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# python script for Geant4Py test
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#
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# gtest07
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# - test for checking overlapped geometries
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# ==================================================================
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from Geant4 import *
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import g4py.ExN01pl, g4py.ParticleGun
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# ==================================================================
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# user actions in python
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# ==================================================================
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class MyDetectorConstruction(G4VUserDetectorConstruction):
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"My Detector Construction"
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def __init__(self):
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G4VUserDetectorConstruction.__init__(self)
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# -----------------------------------------------------------------
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def Construct(self):
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# Python has automatic garbage collection system.
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# Geometry objects must be defined as GLOBAL not to be deleted.
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air= gNistManager.FindOrBuildMaterial("G4_AIR")
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# world volume
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global sld_world, lv_world, pv_world
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sld_world= G4Box("world", 1.*m, 1.*m, 1.*m)
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lv_world= G4LogicalVolume(sld_world, air, "world")
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pv_world= G4PVPlacement(G4Transform3D(), lv_world, "world",
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None, False, 0)
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# box
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global sld_box, lv_box, pv_box
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sld_box= G4Box("box", 10.*cm, 10.*cm, 10.*cm);
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lv_box= G4LogicalVolume(sld_box, air, "box")
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pv_box= G4PVPlacement(None, G4ThreeVector(), "box", lv_box,
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pv_world, False, 0, True)
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# cylinder
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global sld_cyl, lv_cyl, pv_cyl1, pv_cyl2, pv_cyl3
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sld_cyl= G4Tubs("cylinder",0., 2.*cm, 2.*cm, 0., twopi)
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lv_cyl= G4LogicalVolume(sld_cyl, air, "cylinder")
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#
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# the following placements are !! overlapped !!
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#
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# doubly placed
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pv_cyl1= G4PVPlacement(None, G4ThreeVector(), "cylinder", lv_cyl,
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pv_world, False, 0, True)
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# overlaped
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pv_cyl2= G4PVPlacement(None, G4ThreeVector(10.*cm,0.,0.),
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"cylinder", lv_cyl,
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pv_world, False, 1, True)
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# sticked out
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pv_cyl3= G4PVPlacement(None, G4ThreeVector(10.*cm,0.,0.),
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"cylinder", lv_cyl,
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pv_box, False, 0, True)
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return pv_world
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# ==================================================================
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# main
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# ==================================================================
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# set geometry
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myDC= MyDetectorConstruction()
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gRunManager.SetUserInitialization(myDC)
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# minimal physics list
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g4py.ExN01pl.Construct()
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# set primary generator action
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g4py.ParticleGun.Construct()
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# initialize
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gRunManager.Initialize() # overlap should be detected !!
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