Data Structures

Here are the data structures with brief descriptions:

CGMaterial	Material definition belonging to a detector system
CGModifier	Describes a post-load modification to a single volume
CGSystem	Represents a single detector system (e.g., calorimeter, tracker)
CGSystemCADFactory	Load a system from CAD assets (e.g. STL) found in a directory
CGSystemDynamicFactory	Optional plugin interface for dynamically-loaded system factories
CGSystemFactory	Abstract base class for loading a GSystem from a specific source
CGSystemGDMLFactory	Placeholder factory for GDML-based systems
CGSystemSQLiteFactory	Load a GSystem from a sqlite database
CGSystemTextFactory	Load a system from ASCII text files
CGVolume	Geometry volume record loaded into a GSystem
CGWorld	Builds the “world” as a collection of systems, volumes, and post-load modifiers