Coords enum

An enum for coordinate types (by spatial dimension and whether is measured).

Inheritance

• Object
• Enum
• Coords

Constructors

Coords({required int coordinateDimension, required int spatialDimension, required bool is3D, required bool isMeasured, required int wkbId, required String? wktSpecifier, required int? indexForZ, required int? indexForM})

Create an enum for a coordinate type.

const

Values

xy → const Coords

2D coordinates as projected (x, y) or geographic (lon, lat).

const Coords(coordinateDimension: 2, spatialDimension: 2, is3D: false, isMeasured: false, wkbId: 0, wktSpecifier: null, indexForZ: null, indexForM: null)

xyz → const Coords

3D coordinates as projected (x, y, z) or geographic (lon, lat, elev).

const Coords(coordinateDimension: 3, spatialDimension: 3, is3D: true, isMeasured: false, wkbId: 1000, wktSpecifier: 'Z', indexForZ: 2, indexForM: null)

xym → const Coords

2D measured coordinates as projected (x, y, m) or geographic (lon, lat, m).

const Coords(coordinateDimension: 3, spatialDimension: 2, is3D: false, isMeasured: true, wkbId: 2000, wktSpecifier: 'M', indexForZ: null, indexForM: 2)

xyzm → const Coords

3D measured coordinates as projected (x, y, z, m) or geographic (lon, lat, elev, m).

const Coords(coordinateDimension: 4, spatialDimension: 3, is3D: true, isMeasured: true, wkbId: 3000, wktSpecifier: 'ZM', indexForZ: 2, indexForM: 3)

Properties

coordinateDimension → int

The number of coordinate values (2, 3 or 4).

final

hashCode → int

The hash code for this object.

no setter, inherited

index → int

A numeric identifier for the enumerated value.

no setter, inherited

indexForM → int?

The index for an optional M coordinate in a sequence of coordinates.

final

indexForZ → int?

The index for an optional Z coordinate in a sequence of coordinates.

final

is3D → bool

True if coordinates represents a 3D position (with z or elev coordinate).

final

isMeasured → bool

True if coordinates represents a measured position with m coordinate.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

spatialDimension → int

The number of spatial coordinate values (2 for 2D or 3 for 3D).

final

wkbId → int

The WKB type for coordinates, ie. 1000 for coordinates with Z.

final

wktSpecifier → String?

An optional WKT specifier for coordinates, ie. Z, M or ZM.

final

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Methods

fromDimension(int coordinateDimension, {bool xyzForDim3 = true}) → Coords

Resolves the coordinate type from coordinateDimension.

fromWkbId(int id) → Coords

Selects a Coords enum based on the WKB type id.

select({required bool is3D, required bool isMeasured}) → Coords

Selects a Coords enum based on is3D and isMeasured.

Constants

values → const List<Coords>

A constant List of the values in this enum, in order of their declaration.