Enum CellSelection 

pub enum CellSelection {
    All,
    Zone(Arc<Vec<usize>>),
}

The set of cells a source term acts on.

Upstream’s fvCellZone / cellSetOption. A source is almost never global: a heat source occupies one component, a porous drag one region, a melting model one material. This is how that restriction is expressed.

Sharing

The cell list is held behind an Arc, per the workspace rule against lifetime parameters, so several models can share one selection without copying it.

Variants

All

Every cell in the mesh.

Zone(Arc<Vec<usize>>)

An explicit list of cell indices.

Indices are not validated against a mesh here, because a selection is built before it meets one. An out-of-range index will panic on use, which is the correct outcome for what is a case-setup error.

Implementations

impl CellSelection

pub fn zone(cells: Vec<usize>) -> Self

A selection from an explicit list of cell indices.

pub fn cells(&self, n_cells: usize) -> Vec<usize>

The selected cells, given a mesh cell count.

n_cells is used only to expand CellSelection::All.

pub fn len(&self, n_cells: usize) -> usize

Number of selected cells, given a mesh cell count.

pub fn is_empty(&self, n_cells: usize) -> bool

Whether the selection is empty.

An empty selection is legal — it contributes nothing — but is usually a case-setup mistake worth reporting.

Trait Implementations

impl Clone for CellSelection

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CellSelection

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

Formats the value using the given formatter.

impl Eq for CellSelection

impl PartialEq for CellSelection

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for CellSelection