Struct DimMap 

pub struct DimMap { /* private fields */ }

Maps symbolic variable names to their physical dimensions.

Examples

use symplex::units::*;

let dims = DimMap::new()
    .with("m", ConstDim::MASS)
    .with("a", ConstDim::ACCELERATION)
    .with("g", ConstDim::ACCELERATION)
    .with("x", ConstDim::LENGTH);

Implementations

impl DimMap

pub fn new() -> Self

Create an empty dimension map.

pub fn with(self, name: &str, dim: ConstDim) -> Self

Add a variable-dimension mapping. Chainable.

pub fn with_var(self, var: &Ex, dim: ConstDim) -> Self

Add a mapping from an expression’s display representation.

Extracts the variable name from the Ex’s Display output.

pub fn get(&self, name: &str) -> Option<&ConstDim>

Look up a variable’s dimension.

pub fn insert(&mut self, name: &str, dim: ConstDim)

Insert a mapping in-place (non-chaining).

pub fn len(&self) -> usize

Returns the number of entries.

pub fn is_empty(&self) -> bool

Returns true if the map has no entries.

Trait Implementations

impl Clone for DimMap

fn clone(&self) -> DimMap

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DimMap

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

Formats the value using the given formatter.

impl Default for DimMap

fn default() -> DimMap

Returns the “default value” for a type.