Package com.here.platform.location.core.geospatial

Class SinusoidalProjection

java.lang.Object

com.here.platform.location.core.geospatial.SinusoidalProjection

public class SinusoidalProjection
extends Object

A simple and fast GeoProjection used for most use cases.

The error is less than 1% for distances up to 10km when the latitude is between +85 and -85 degrees.

Constructor Summary

Constructors

Constructor	Description
SinusoidalProjection()

Method Summary

Modifier and Type	Method	Description
static ProjectionDistanceCalculator	DistanceCalculator()	A ProjectionDistanceCalculator using SinusoidalProjection
static <CGC, C> GeoCoordinate	from(CGC center, C coordinates, GeoCoordinateOperations<CGC> evidence$4, CoordinateOperations<C> evidence$5)	Projects back to WGS84 coordinates (in degrees) from Cartesian coordinates (in meters).
static <CGC, GC> Coordinate2D	to(CGC center, GC p, GeoCoordinateOperations<CGC> evidence$1, GeoCoordinateOperations<GC> evidence$2)	Projects WGS84 coordinates (in degrees) into Cartesian coordinates (in meters).
static <GC> Coordinate2D	toCenter(GC center, GeoCoordinateOperations<GC> evidence$3)

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

SinusoidalProjection

public SinusoidalProjection()

Method Details

to

public static <CGC,
GC> Coordinate2D to(CGC center,
 GC p,
 GeoCoordinateOperations<CGC> evidence$1,
 GeoCoordinateOperations<GC> evidence$2)

Projects WGS84 coordinates (in degrees) into Cartesian coordinates (in meters).

Parameters:

center - The center of the projection, needs to be the same for all points that take part in the following computation (e.g. distance) and the same center should be used to then project resulting coordinates back into WGS84.

p - The point to be projected

Type Parameters:

CGC The type of the WGS84 coordinates of the projection center, GC The type of the WGS84 coordinates of the point to be projected

toCenter

public static <GC> Coordinate2D toCenter(GC center,
 GeoCoordinateOperations<GC> evidence$3)

from

public static <CGC,
C> GeoCoordinate from(CGC center,
 C coordinates,
 GeoCoordinateOperations<CGC> evidence$4,
 CoordinateOperations<C> evidence$5)

Projects back to WGS84 coordinates (in degrees) from Cartesian coordinates (in meters).

Should not be used for latitudes within 0.001 degrees from any of the poles (equivalent to 90 or -90), since the behavior becomes random due to calculation limitations (division by value close to zero).

Parameters:

center - The center of the projection

coordinates - The Cartesian coordinates, near the center, to be projected back to WGS84

DistanceCalculator

public static ProjectionDistanceCalculator DistanceCalculator()

A ProjectionDistanceCalculator using SinusoidalProjection