Struct Scale 

pub struct Scale(/* private fields */);

A dimensionless scale factor with its unit of measure.

Corresponds to gml:ScaleType in ISO 19136 — a vacuous extension of gml:MeasureType. The unit referenced by uom should be suitable for a ratio, such as a percentage or a unitless factor.

Examples

use egml_core::model::measures::Scale;

let factor = Scale::new(0.5, "unity");
assert_eq!(factor.value(), 0.5);

Implementations

impl Scale

pub fn new(value: f64, uom: impl Into<String>) -> Self

Creates a new measurement with the given value and unit of measure.

pub fn value(&self) -> f64

Returns the numeric measurement value.

pub fn uom(&self) -> &str

Returns the unit-of-measure URI or UCUM expression.

Trait Implementations

impl Clone for Scale

fn clone(&self) -> Scale

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Scale

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

Formats the value using the given formatter.

impl From<Measure> for Scale

fn from(measure: Measure) -> Self

Converts to this type from the input type.

impl From<Scale> for Measure

fn from(value: Scale) -> Self

Converts to this type from the input type.

impl PartialEq for Scale

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for Scale

fn partial_cmp(&self, other: &Scale) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralPartialEq for Scale