Projection

Type class

This is a base class for a geographical projection.

Sources

Projection can be used (imported) via one of the following packages.

/**
 * --------------------------------------------------------
 * Import from: "maps.ts"
 * Use like: am4maps.Projection
 * --------------------------------------------------------
 */
import * as am4maps from "@amcharts/amcharts4/maps";

/**
 * --------------------------------------------------------
 * Include via: <script src="maps.js"></script>
 * Access items like: am4.Projection
 * --------------------------------------------------------
 */

Inheritance

Projection does not extend any other symbol.

Projection is extended by Albers, AlbersUsa, AzimuthalEqualArea, Eckert6, EqualEarth, Mercator, Miller, NaturalEarth1, Orthographic, Stereographic.

Properties

d3Projection #	Type GeoProjection d3 projection d3 projection

Methods

constructor() #	Returns Projection
convert( geoPoint: IGeoPoint ) #	Returns IPoint Converts a geographical point (lat/long) to a screen point (x/y)
distance( pointA: IGeoPoint, pointB: IGeoPoint ) #	Returns number
intermediatePoint( pointA: IGeoPoint, pointB: IGeoPoint, position: number ) #	Returns IGeoPoint
invert( point: IPoint ) #	Returns IGeoPoint Converts a screen point (x/y) to a geographical point (lat/long)
multiDistance( multiGeoLine: Array < Array < IGeoPoint > > ) #	Returns number
positionToGeoPoint( multiGeoLine: Array < Array < IGeoPoint > > , position: number ) #	Returns IGeoPoint Converts relative position along the line (0-1) into pixel coordinates.
positionToPoint( multiGeoLine: Array < Array < IGeoPoint > > , position: number ) #	Returns IOrientationPoint Converts relative position along the line (0-1) into pixel coordinates.
project( lambda: number, phi: number ) #	Returns IPoint Returns X/Y coordinates. Individual projections will override this method to apply their own projection logic. @deprecated @todo Needs description
unproject( x: number, y: number ) #	Returns IGeoPoint Returns geographical coordinates (lat/long). Individual projections will override this method to apply their own projection logic. @deprecated @todo Needs description

Events

Projection does not have any events.

Adapters

Projection does not have any adapters.