Package org.locationtech.proj4j.proj

Class RobinsonProjection

java.lang.Object

org.locationtech.proj4j.proj.Projection

org.locationtech.proj4j.proj.CylindricalProjection

org.locationtech.proj4j.proj.PseudoCylindricalProjection

org.locationtech.proj4j.proj.RobinsonProjection

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable

public class RobinsonProjection
extends PseudoCylindricalProjection

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Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
private static double	C1
private static double	EPS
private static double	FXC
private static double	FYC
private static int	MAX_ITER
private int	NODES
private static double	ONEEPS
private static double	RC1
private static double[][]	X
private static double[][]	Y

Fields inherited from class org.locationtech.proj4j.proj.Projection

a, alpha, DTR, e, ellipsoid, EPS10, es, falseEasting, falseNorthing, fromMetres, geocentric, lonc, maxLatitude, maxLongitude, minLatitude, minLongitude, name, one_es, projectionLatitude, projectionLatitude1, projectionLatitude2, projectionLongitude, rone_es, RTD, scaleFactor, spherical, totalScale, trueScaleLatitude, unit

Constructor Summary

Constructors

Constructor	Description
RobinsonProjection()

Method Summary

Modifier and Type	Method	Description
private double	DV(double[] C, double z)
boolean	hasInverse()	Tests whether this projection has an inverse.
ProjCoordinate	project(double lplam, double lpphi, ProjCoordinate xy)	Computes the projection of a given point (i.e.
ProjCoordinate	projectInverse(double x, double y, ProjCoordinate lp)	Computes the inverse projection of a given point (i.e.
java.lang.String	toString()
private double	V(double[] C, double z)

Methods inherited from class org.locationtech.proj4j.proj.PseudoCylindricalProjection

isRectilinear

Methods inherited from class org.locationtech.proj4j.proj.Projection

clone, equals, getAlpha, getAxisOrder, getEllipsoid, getEPSGCode, getEquatorRadius, getFalseEasting, getFalseNorthing, getFromMetres, getHeightOfOrbit, getLonC, getMaxLatitude, getMaxLatitudeDegrees, getMaxLongitude, getMaxLongitudeDegrees, getMinLatitude, getMinLatitudeDegrees, getMinLongitude, getMinLongitudeDegrees, getName, getPrimeMeridian, getPROJ4Description, getProjectionLatitude, getProjectionLatitude1, getProjectionLatitude1Degrees, getProjectionLatitude2, getProjectionLatitude2Degrees, getProjectionLatitudeDegrees, getProjectionLongitude, getProjectionLongitudeDegrees, getScaleFactor, getSouthernHemisphere, getTrueScaleLatitude, getTrueScaleLatitudeDegrees, getUnits, hashCode, initialize, inside, inverseProject, inverseProjectRadians, isConformal, isEqualArea, isGeographic, normalizeLongitude, normalizeLongitudeRadians, parallelsAreParallel, project, projectRadians, setAlpha, setAlphaDegrees, setAxisOrder, setEllipsoid, setFalseEasting, setFalseNorthing, setFromMetres, setGamma, setGammaDegrees, setHeightOfOrbit, setLonC, setLonCDegrees, setMaxLatitude, setMaxLongitude, setMaxLongitudeDegrees, setMinLatitude, setMinLongitude, setMinLongitudeDegrees, setName, setNoUoff, setPrimeMeridian, setProjectionLatitude, setProjectionLatitude1, setProjectionLatitude1Degrees, setProjectionLatitude2, setProjectionLatitude2Degrees, setProjectionLatitudeDegrees, setProjectionLongitude, setProjectionLongitudeDegrees, setRadius, setScaleFactor, setSouthernHemisphere, setTrueScaleLatitude, setTrueScaleLatitudeDegrees, setUnits

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

X

private static final double[][] X

Y

private static final double[][] Y

NODES

private final int NODES

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Constant Field Values

FXC

private static final double FXC

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Constant Field Values

FYC

private static final double FYC

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Constant Field Values

C1

private static final double C1

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Constant Field Values

RC1

private static final double RC1

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Constant Field Values

ONEEPS

private static final double ONEEPS

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Constant Field Values

EPS

private static final double EPS

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Constant Field Values

MAX_ITER

private static final int MAX_ITER

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Constant Field Values

Constructor Detail

RobinsonProjection

public RobinsonProjection()

Method Detail

V

private double V(double[] C,
                 double z)

DV

private double DV(double[] C,
                  double z)

project

public ProjCoordinate project(double lplam,
                              double lpphi,
                              ProjCoordinate xy)

Description copied from class: Projection

Computes the projection of a given point (i.e. from geographics to projection space). This should be overridden for all projections.

Overrides:

project in class Projection

Parameters:

lplam - the geographic x ordinate (in radians)

lpphi - the geographic y ordinatee (in radians)

xy - the projected coordinate (in coordinate system units)

Returns:

the target coordinate

projectInverse

public ProjCoordinate projectInverse(double x,
                                     double y,
                                     ProjCoordinate lp)

Description copied from class: Projection

Computes the inverse projection of a given point (i.e. from projection space to geographics). This should be overridden for all projections.

Overrides:

projectInverse in class Projection

Parameters:

x - the projected x ordinate (in coordinate system units)

y - the projected y ordinate (in coordinate system units)

lp - the inverse-projected geographic coordinate (in radians)

Returns:

the target coordinate

hasInverse

public boolean hasInverse()

Description copied from class: Projection

Tests whether this projection has an inverse. If this method returns true then the Projection.inverseProject(ProjCoordinate, ProjCoordinate) and Projection.inverseProjectRadians(ProjCoordinate, ProjCoordinate) methods will return meaningful results.

Overrides:

hasInverse in class Projection

Returns:

true if this projection has an inverse

toString

public java.lang.String toString()

Overrides:

toString in class PseudoCylindricalProjection