|Message: Environment variables in GDML files||Not Logged In (login)|
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I am performing simulations using geant4.10.01 loading the geometry from several gdml files: One main file (main.gdml) including a structure which calls other gdml files as phys volume.
Due to the computer I use for the simulations I need to copy all the gdml files to a temporary folder which I define in an environment variable $TEMP_DIR. So to define de different physvol's I write something like:
<physvol name="Form_1"> <file name="$TEMP_DIR/Form_1.gdml"/> <position name="posRef_4883" x="0" y="-6224.3061679350003" z="0"/> <rotationref ref="identity"/> </physvol>
When I run my simulation, it doesn't work, receiving the following messages
G4GDML: Reading '$TEMP_DIR/main.gdml'... G4GDML: VALIDATION ERROR! unable to open primary document entity $TEMP_DIR/main.gdml' at line: 0
-------- EEEE ------- G4Exception-START -------- EEEE ------- *** G4Exception : InvalidRead issued by : G4GDMLRead::Read() Unable to open document: $TEMP_DIR/main.gdml *** Fatal Exception *** core dump *** -------- EEEE -------- G4Exception-END --------- EEEE -------
I checked and the gdml files are at $TEMP_DIR and using linux commands environment variable works. When I write the $TEMP_DIR path without using the environment variable, the simulation works properly.
I'm not an expert on gdml language, but it seems that $TEMP_DIR is not recognized in this language.
I would really appreciate if somebody can give me an explanation fro this error an a possible solution
Thank you very much in advance