Import Geant4 0.0.0 source tree

2016-06-01 15:25:35 +02:00
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+G3toG4
+------
+
+The Geant4 facility to convert Geant3 to GEant4 volumes.
+See the documentation section of the repository for more information.
+
+19-Mar-1997:
+'gmake' issued from the test/ subdirectory will create an executable
+'clGeometry' which reads the call list file generated by rztog4, builds a
+geometry and calls the visualization package. This has been tested with the
+visualization based on OpenGL and Mesa (freeware OpenGL).
+To use the visualization, you need to set one or more of the following 
+environment variables:
+
+setenv G4VIS_USE_DAWN
+setenv G4VIS_USE_OPACS
+setenv G4VIS_USE_OPENGL
+setenv G4VIS_USE_OPENGLX
+setenv G4VIS_USE_OPENGLXM
+setenv G4VIS_USE_OPENINVENTOR
+setenv G4VIS_USE_RAYX
+setenv G4VIS_USE_VRML1
+
+The following gmake invocations do the following
+
+gmake libF :	build libG3toG4F.a (rztog4 object archive)
+
+gmake libC :    build libG3toG4.a (code to parse call list file and call G4 
+		routines)
+
+gmake lib  : 	libC and libF targets
+
+gmake bin  :	build rztog4 executable
+
+gmake      :	build lib targets
+
+gmake ext  :	build external packages, including BREPS and STEP
+
+gmake examples: build cltog4 and clGeometry executables
+
+gmake cltog4:	build cltog4 executable
+
+gmake clGeometry: build clGeometry executable	
+
+gmake all  :	ext lib bin examples
+
+The code in the visualization subdirectory OpenGL/ must be compiled on a 
+machine on which the OpenGL header files have been installed. The compilation
+of G3toG4 and external packages is done as follows:
+
+gmake all
+
+In the global/GNUmakefile.architecture file, you need to specify where to
+find the OpenGL libraries. I currently use the freeware version of OpenGL
+called 'Mesa'. I specify
+
+OGLLIBS   := -L$(OGLHOME)/lib -lMesaGL -lMesaGLU -lMesaaux -lMesatk
+
+The AIX version is
+
+OGLLIBS   := -L$(OGLHOME)/lib -lGLX -lGLU -lGL -lXGLW -lglobalm5
+
+Notes on the implementation (Sep 24 '96)
+----------------------------------------
+- PGON, PCON still not in; awaiting Geant4 constructors. 100m^3
+  boxes are generated for PGON, PCON at present.
+- MANY not available in Geant4 yet.
+- GSPOSP implemented via individual logical volumes for each instantiation
+  (G4PVIndexed doesn't exist yet)
+- GSDV* routines for dividing volumes implemented, using
+  G4PVReplicas, G4PVParametrised
+- GSROTM is implemented
+- hits are not implemented. Hit code is do-nothing. (It is
+  coded up, but hit class references are commented out.)
+  The digits+hits code has to be updated before G3toG4's
+  hit code can be activated.
+- GSPART has to be updated.
+- Usage of magnetic field class has to be turned on.
+- Use of G4UserLimits has to be reviewed and turned on.
+- GNUmakefile is tested only on HP
+
+See History file for modificartion history.