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Geometry Description Markup Language for Physics Simulation and Analysis Applications

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4 Author(s)

The Geometry Description Markup Language (GDML) is a specialized XML-based language designed as an application-independent persistent format for describing the geometries of detectors associated with physics measurements. It serves to implement "geometry trees" which correspond to the hierarchy of volumes a detector geometry can be composed of, and to allow to identify the position of individual solids, as well as to describe the materials they are made of. Being pure XML, GDML can be universally used, and in particular it can be considered as the format for interchanging geometries among different applications. In this paper we will present the current status of the development of GDML. After having discussed the contents of the latest GDML schema, which is the basic definition of the format, we will concentrate on the GDML processors. We will present the latest implementation of the GDML "writers" as well as "readers" for either Geant4 , or ROOT ,

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IEEE Transactions on Nuclear Science  (Volume:53 ,  Issue: 5 )