|Message: Re: New GDML code not reading triangular facets||Not Logged In (login)|
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External gdml files If you create a physvol, you should either specify a logical volume or an external GDML file. For the external file, the file name must be specified, and as an option, you can reference a logical volume from that file. If there is no volume referenced, the top volume is considered. Unfortunately this special case is not implemented, but it will be addressed in the next patch. The top volume is specified in the setup section of a GDML file: (There must be at least one setup definied, named as "Default") <setup name="Default" version="1.0"> <world ref="TOP"/> </setup> I guess this is true for the files generated with the fastrad software. If it is true, it can be solved by adding a single line to the G4GDMLStructure::fileRead function. The last three lines look like: G4GDMLStructure structure; // We create a new structure with a new evaluator structure.Parse(name); return structure.getVolume(structure.GenerateName(volname)); The code should look like with the additional line: G4GDMLStructure structure; // We create a new structure with a new evaluator structure.Parse(name); if (volname.empty()) return structure.getVolume(structure.getSetup("Default")); return structure.getVolume(structure.GenerateName(volname)); I have succesfully tested the code with the above modification. (Note, that 'GenerateName' is not called in the additional line!) I hope this post will be useful for you! Please let me know how it works or if you have any further problem! Best regards, Zoltan
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