org.openstreetmap.josm.data.projection.proj
Class Mercator

java.lang.Object
  org.openstreetmap.josm.data.projection.proj.Mercator

All Implemented Interfaces:

Proj

public class Mercator
extends java.lang.Object
implements Proj

Mercator Projection.

Constructor Summary

Mercator()

Method Summary

java.lang.String	getName() A Human readable name of this projection.
java.lang.String	getProj4Id() The Proj.4 identifier.
void	initialize(ProjParameters params) Initialize the projection using the provided parameters.
double[]	invproject(double east, double north) Convert east/north to lat/lon.
double[]	project(double lat_rad, double lon_rad) Convert lat/lon to east/north.

Methods inherited from class java.lang.Object

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

Constructor Detail

Mercator

public Mercator()

Method Detail

getName

public java.lang.String getName()

Description copied from interface: Proj

A Human readable name of this projection.

Specified by:

getName in interface Proj

getProj4Id

public java.lang.String getProj4Id()

Description copied from interface: Proj

The Proj.4 identifier. (as reported by cs2cs -lp) If no id exists, return null.

Specified by:

getProj4Id in interface Proj

initialize

public void initialize(ProjParameters params)
                throws ProjectionConfigurationException

Description copied from interface: Proj

Initialize the projection using the provided parameters.

Specified by:

initialize in interface Proj

Throws:

ProjectionConfigurationException - in case parameters are not suitable

project

public double[] project(double lat_rad,
                        double lon_rad)

Description copied from interface: Proj

Convert lat/lon to east/north.

Specified by:

project in interface Proj

Parameters:

lat_rad - the latitude in radians

lon_rad - the longitude in radians

Returns:

array of length 2, containing east and north value in meters, divided by the semi major axis of the ellipsoid.

invproject

public double[] invproject(double east,
                           double north)

Description copied from interface: Proj

Convert east/north to lat/lon.

Specified by:

invproject in interface Proj

Parameters:

east - east value in meters, divided by the semi major axis of the ellipsoid

north - north value in meters, divided by the semi major axis of the ellipsoid

Returns:

array of length 2, containing lat and lon in radians.