celeritas::VolumeView Class Reference

Access data about a single implementation volume. More...

#include <VolumeView.hh>

Public Types
using	ParamsRef = NativeCRef< OrangeParamsData >
	Type aliases.

Public Member Functions
	VolumeView (ParamsRef const &params, SimpleUnitRecord const &unit_record, LocalVolumeId id)
	Construct with reference to persistent data.
FaceId::size_type	num_faces () const
	Number of surfaces bounding this volume.
LocalSurfaceId	get_surface (FaceId id) const
	Get the surface ID for a single face.
FaceId	find_face (LocalSurfaceId id) const
	Find the face ID of a surface.
LdgSpan< LocalSurfaceId const >	faces () const
	Get all the surface IDs corresponding to the faces of this volume.
LdgSpan< logic_int const >	logic () const
	Get logic definition.
logic_int	max_intersections () const
	Get the maximum number of surface intersections.
bool	internal_surfaces () const
	Whether the volume has internal surface crossings.
bool	implicit_vol () const
	Whether the volume is an "implicit complement".
bool	simple_safety () const
	Whether the safety distance can be calculated with the simple algorithm.
bool	simple_intersection () const
	Whether the intersection is the closest interior surface.

Detailed Description

Access data about a single implementation volume.

A volume is a CSG tree of surfaces. The sorted, unique surface IDs comprising the volume are "faces" and can be indexed as part of this volume using the FaceId.

Each surface defines an "inside" space and "outside" space that correspond to "negative" and "positive" values of the quadric expression's evaluation. Left of a plane is negative, for example, and evaluates to "false" or "inside" or "negative". The CSG tree is encoded into a vector of Reverse Polish Notation-type operations (push, negate, and, or) that is evaluated at tracking time to determine whether a particle is inside the volume. The encoded set of operations is the logic accessor.

Member Function Documentation

find_face()

FaceId celeritas::VolumeView::find_face ( LocalSurfaceId  surface ) const

inline

Find the face ID of a surface.

• A non-empty surface ID that's among the faces in this volume will return the face ID, which is just the index of the surface ID in the list of local faces.
• If the given surface is not present in the volume, the result will be false.

This is an O(log(num_faces)) operation.

get_surface()

LocalSurfaceId celeritas::VolumeView::get_surface ( FaceId  id ) const

inline

Get the surface ID for a single face.

This is an O(1) operation.

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The documentation for this class was generated from the following file:

• VolumeView.hh