GeantGeoUtils.hh File Reference

#include <iosfwd>
#include <string>
#include <unordered_set>
#include "corecel/Config.hh"
#include "corecel/Assert.hh"
#include "corecel/cont/Span.hh"

This graph shows which files directly or indirectly include this file:

Classes
struct	celeritas::PrintableNavHistory
	Wrap around a touchable to get a descriptive output. More...
struct	celeritas::PrintableLV
	Wrap around a G4LogicalVolume to get a descriptive output. More...

Typedefs
using	celeritas::GeantTouchableBase = G4VTouchable

Functions
std::ostream &	celeritas::operator<< (std::ostream &os, PrintableNavHistory const &pnh)
	Print detailed information about the touchable history. More...
std::ostream &	celeritas::operator<< (std::ostream &os, PrintableLV const &plv)
	Print the logical volume name, ID, and address.
G4VPhysicalVolume *	celeritas::load_geant_geometry (std::string const &filename)
	Load a Geant4 geometry, leaving the pointer suffixes intact for VecGeom. More...
G4VPhysicalVolume *	celeritas::load_geant_geometry_native (std::string const &filename)
	Load a Geant4 geometry, stripping suffixes like a typical Geant4 app. More...
void	celeritas::write_geant_geometry (G4VPhysicalVolume const *world, std::string const &out_filename)
	Write a GDML file to the given filename.
void	celeritas::reset_geant_geometry ()
	Reset all Geant4 geometry stores if not using RunManager. More...
Span< G4LogicalVolume * >	celeritas::geant_logical_volumes ()
	Get a view to the Geant4 LV store. More...
G4VPhysicalVolume const *	celeritas::geant_world_volume ()
	Get the world volume for the primary geometry. More...
std::unordered_set< G4LogicalVolume const * >	celeritas::find_geant_volumes (std::unordered_set< std::string > names)
	Find Geant4 logical volumes corresponding to a list of names. More...
std::string	celeritas::make_gdml_name (G4LogicalVolume const &lv)
	Generate the GDML name for a Geant4 logical volume.
void	celeritas::set_history (Span< G4VPhysicalVolume const * > stack, G4NavigationHistory *nav)
	Update a nav history to match the given pv stack. More...

Function Documentation

find_geant_volumes()

std::unordered_set< G4LogicalVolume const * > celeritas::find_geant_volumes ( std::unordered_set< std::string >  names )

inline

Find Geant4 logical volumes corresponding to a list of names.

If logical volumes with duplicate names are present, they will all show up in the output and a warning will be emitted. If one is missing, a RuntimeError will be raised.

static std::string_view const labels[] = {"Vol1", "Vol2"};
auto vols = find_geant_volumes(make_span(labels));

geant_logical_volumes()

Span< G4LogicalVolume * > celeritas::geant_logical_volumes ( )

inline

Get a view to the Geant4 LV store.

This includes all volumes, potentially null ones as well.

geant_world_volume()

G4VPhysicalVolume const * celeritas::geant_world_volume

(

)

Get the world volume for the primary geometry.

Returns

World volume if geometry has been initialized, nullptr otherwise.

load_geant_geometry()

G4VPhysicalVolume * celeritas::load_geant_geometry ( std::string const &  filename )

inline

Load a Geant4 geometry, leaving the pointer suffixes intact for VecGeom.

Do not strip 0x extensions since those are needed to deduplicate complex geometries (e.g. CMS) when loaded separately by VGDML and Geant4. The pointer-based deduplication is handled by the Label and LabelIdMultiMap.

Returns

Geant4-owned world volume

load_geant_geometry_native()

G4VPhysicalVolume * celeritas::load_geant_geometry_native ( std::string const &  filename )

inline

Load a Geant4 geometry, stripping suffixes like a typical Geant4 app.

With this implementation, we let Geant4 strip the uniquifying pointers, which allows our application to construct its own based on the actual in-memory addresses.

Returns

Geant4-owned world volume

operator<<()

std::ostream & celeritas::operator<<	(	std::ostream &	os,
		PrintableNavHistory const &	pnh
	)

Print detailed information about the touchable history.

For brevity, this does not print the world volume.

reset_geant_geometry()

void celeritas::reset_geant_geometry ( )

inline

Reset all Geant4 geometry stores if not using RunManager.

Use this function if reading geometry and cleaning up without doing any transport in between (useful for geometry conversion testing).

set_history()

void celeritas::set_history	(	Span< G4VPhysicalVolume const * >	stack,
		G4NavigationHistory *	nav
	)

Update a nav history to match the given pv stack.

Warning

The stack cannot have a parameterized/replicated volume.

Note

The stack should have the same semantics as LevelId, i.e. the initial entry is the "most global" level.