Enum Unit 

pub enum Unit {
    BaseUnit(BaseUnit),
    UnitObject(UnitObject),
}

Unit

Description

Defines the unit of measure for lengths or distances, typically used within other spatial extent definitions like VerticalExtent. It consists of a unit name (e.g., “metre”, “foot”) and a corresponding numeric value, often representing the conversion factor to a base unit.

Common naming convention

• LENGTHUNIT
• ANGLEUNIT
• SCALEUNIT
• TIMEUNIT
• PARAMETRICUNIT

Requirement

The WKT representation of a <length unit> shall be:

<length unit> ::= <length unit keyword> <left delimiter> <quoted text> <wkt separator> <number> <right delimiter>
<length unit keyword> ::= LENGTHUNIT

Unprovided defaults to BaseUnit->Metre

Examples

• LENGTHUNIT["metre",1.0]
• LENGTHUNIT["foot",0.3048]

Variants

BaseUnit(BaseUnit)

Base case

UnitObject(UnitObject)

Object with complex units

Implementations

impl Unit

pub fn new_deg() -> Self

Create a degree unit

pub fn set_unit_type(&mut self, unit_type: UnitType)

Set the unit type assuming the unit is a UnitObject

pub fn rad(&self) -> f64

Get the multiplier for the unit to convert to radians

pub fn meters(&self) -> f64

Get the multiplier for the unit to convert to meters

Trait Implementations

impl Clone for Unit

fn clone(&self) -> Unit

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Unit

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

Formats the value using the given formatter.

impl Default for Unit

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Unit

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Unit

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for Unit

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl ToProjJSON for Unit

fn set_unit(&mut self, unit: Unit)

Set a Unit

fn set_usage(&mut self, _usage: ObjectUsage)

Set Usage

fn set_anchor(&mut self, _anchor: String)

Set an Anchor

fn set_id(&mut self, _id: Id)

Set an Id

fn set_axis(&mut self, _axis: Axis)

Set an Axis

fn set_coordinate_system(&mut self, _cs: CoordinateSystem)

Set a CoordinateSystem

fn set_temporal_extent(&mut self, _extent: TemporalExtent)

Set Temporal Extent

fn set_vertical_extent(&mut self, _extent: VerticalExtent)

Set Vertical Extent

fn set_bbox(&mut self, _bbox: ProjBBox)

Set Bounding Box

fn set_area(&mut self, _area: Option<String>)

Set Area

fn set_method(&mut self, _method: Method)

Set a Method

fn set_ensemble(&mut self, _ensemble: DatumEnsemble)

Set a DatumEnsemble

fn set_member(&mut self, _member: DatumEnsembleMember)

Set a Member

fn set_ellipsoid(&mut self, _ellipsoid: Ellipsoid)

Set an Ellipsoid

fn set_accuracy(&mut self, _accuracy: String)

Set Accuracy

fn set_epoch(&mut self, _epoch: f64)

Set Epoch

fn set_frame_epoch(&mut self, _epoch: f64)

Set a frame epoch

fn set_datum(&mut self, _datum: Datum)

Set a datum

fn set_parameter(&mut self, _parameter: ParameterValue)

Set a Parameter

fn set_meridian(&mut self, _meridian: Meridian)

Set a Meridian

fn set_prime_meridian(&mut self, _prime_meridian: PrimeMeridian)

Set a PrimeMeridian

fn set_conversion(&mut self, _conversion: Conversion)

Set a Conversion

fn set_geodetic_crs(&mut self, _geodetic_crs: GeodeticCRS)

Set a GeodeticCRS

fn set_projected_crs(&mut self, _projected_crs: ProjectedCRS)

Set a ProjectedCRS

fn set_projection(&mut self, _name: String)

Set the name

fn set_order(&mut self, _order: usize)

Set the order

impl WKTParser for Unit

fn from_wkt(unit_xml: &WKTValue) -> Self

Creates a new LengthUnit from a WKTValue

impl StructuralPartialEq for Unit