Struct MeshGeometry 

pub struct MeshGeometry { /* private fields */ }

A target of closed triangle-mesh solids, each tagged with a material, with a BVH per solid. See the module docs for the ownership rules.

Implementations

impl MeshGeometry

pub fn new( materials: Vec<Material>, solids: Vec<(TriMesh, u32)>, ) -> Result<Self, GeometryError>

Build from the material list and (mesh, material index) solids, in priority order (the first listed owns overlaps). Meshes are in metres.

pub fn mesh(&self, region: usize) -> &TriMesh

The solids’ meshes, in region order.

pub fn tolerance_m(&self) -> f64

The geometric tolerance of the ownership rules, m.

pub fn bounds(&self) -> ([f64; 3], [f64; 3])

Axis-aligned bounds of all solids, (min, max), m.

Trait Implementations

impl Clone for MeshGeometry

fn clone(&self) -> MeshGeometry

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for MeshGeometry

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Geometry for MeshGeometry

fn in_vacuum(&self, pos: [f64; 3]) -> bool

A point on the surface of a solid is not in vacuum, whichever of the eight diagonal offsets (the one of Geometry::locate and its mirror images) would put it outside.

fn n_materials(&self) -> usize

Number of distinct materials.

fn material(&self, index: usize) -> &Material

Material index (0..n_materials()).

fn n_regions(&self) -> usize

Number of regions.

fn material_index(&self, region: usize) -> usize

Index of the material filling region.

fn locate(&self, pos: [f64; 3]) -> Option<usize>

The region containing pos, or None outside the target (or for a non-finite position). Ownership of shared faces: see the module docs.

fn entry_point(&self) -> [f64; 3]

Where a beam enters by default: the origin for a Stack, the centre of the front face for a VoxelGrid.

fn exit( &self, region: usize, pos: [f64; 3], dir: [f64; 3], limit: f64, ) -> Option<Exit>

The first event along the straight flight from pos (inside region, or on one of its faces) in the unit direction dir, if it happens at a path length of at most limit; otherwise None. The event is a change of material, a periodic wrap, or leaving the target.

fn flight( &self, region: usize, pos: [f64; 3], dir: [f64; 3], limit: f64, ) -> Flight

Geometry::exit, also reporting the region the flight ends in when there is no event, so a transport engine can keep its particle’s region consistent with its position after crossing same-material faces. The default suits a geometry whose regions are each a whole material run along every flight (a Stack, where leaving a layer is always an event): without an event the region is unchanged.

fn as_stack(&self) -> Option<&Stack>

This geometry as a layered Stack, if it is one. Tallies defined per layer (dose, depth-dose, interface transmission) need it.

impl PartialEq for MeshGeometry

fn eq(&self, other: &MeshGeometry) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for MeshGeometry