GeoUtility class

The GeoUtility class is used for performing various transformations on coordinates (ie. re-centering, shifting, scaling, etc.).

Constructors

GeoUtility()

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

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

isClockwise(List<GeoCoordinate2D> vertices) → bool

Check whether the sequence of paths defined by vertices is moving in clockwise or counter-clockwise direction.

neworigin(GeoCoordinate2D origin, List<GeoCoordinate2D> coords, [bool bInPlace = false]) → List<GeoCoordinate2D>

Shift coordinates to a new origin by subtracting each coordinates (x,y) with the new origin. If bInPlace is true, the coords array values will be updated, otherwise a new coordinate array will be returned.

pointFromTo2D(GeoCoordinate2D from, GeoCoordinate2D to, double length) → GeoCoordinate2D

Calculate the point length distance from point from, moving towards point to in a 2-dimensional plane.

pointFromTo3D(GeoCoordinate from, GeoCoordinate to, double length) → GeoCoordinate

Calculate the point length distance from point from, moving towards point to in a 3-dimensional plane.

recenter(GeoCoordinate2D center, List<GeoCoordinate2D> coords, [bool bInPlace = false]) → List<GeoCoordinate2D>

Center the coordinates defined in coords based on new center (or origin). If bInPlace is true, the coords array values will be updated, otherwise a new coordinate array will be returned.

scaleToFit(Size size, BoxFit boxFit, List<GeoCoordinate2D> coords, [bool bRecenter = false, bool bInPlace = false]) → List<GeoCoordinate2D>

Adjust coordinates coords within rectangle defined by dimensions size such that it meets boxFit criteria. If bInPlace is true, the coords array values will be updated, otherwise a new coordinate array will be returned.

toOffset(GeoCoordinate2D coord) → dynamic

Convert a 2-dimensional coordinate to Offset

toOffsetList(List<GeoCoordinate2D> coords) → dynamic

Convert a 2-dimensional coordinate array in Offset array