Struct MapConversion 

pub struct MapConversion { /* private fields */ }

How a source’s coordinates map onto a map coordinate reference system.

Implementations

impl MapConversion

pub fn try_new( target: Option<String>, offset: [f64; 3], x_axis: [f64; 2], scale: f64, metres_per_map_unit: Option<f64>, ) -> Result<Self, CoordinateSystemError>

A map conversion.

offset is easting, northing and orthogonal height in the map’s unit; x_axis is the direction of the source’s X axis in the map’s plan (abscissa, ordinate) and is normalized; scale is the factor from source to map lengths. metres_per_map_unit is None when the map’s unit is not stated or cannot be resolved exactly, never a guess.

pub fn target(&self) -> Option<&str>

The name of the target map coordinate reference system, when stated.

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

Easting, northing and orthogonal height, in the map’s unit.

pub fn x_axis(&self) -> [f64; 2]

Unit direction of the source’s X axis in the map’s plan.

pub fn scale(&self) -> f64

Scale from source lengths to map lengths.

pub fn metres_per_map_unit(&self) -> Option<f64>

Metres per map unit, or None when the unit is not known exactly.

pub fn offset_metres(&self) -> Option<[f64; 3]>

The offset in metres, when the map’s unit is known.

Trait Implementations

impl Clone for MapConversion

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 MapConversion

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

Formats the value using the given formatter.

impl PartialEq for MapConversion

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for MapConversion