Class SimpleConicProjection

java.lang.Object

org.locationtech.proj4j.proj.Projection

org.locationtech.proj4j.proj.ConicProjection

org.locationtech.proj4j.proj.SimpleConicProjection

All Implemented Interfaces:

Serializable, Cloneable

Direct Known Subclasses:

EulerProjection, Murdoch1Projection, Murdoch2Projection, Murdoch3Projection, PerspectiveConicProjection, TissotProjection, VitkovskyProjection

public class SimpleConicProjection
extends ConicProjection

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
private double	c1
private double	c2
private static final double	EPS
private static final double	EPS10
static final int	EULER
static final int	MURD1
static final int	MURD2
static final int	MURD3
private double	n
static final int	PCONIC
private double	rho_0
private double	rho_c
private double	sig
static final int	TISSOT
private int	type
static final int	VITK1

Fields inherited from class Projection

a, alpha, DTR, e, ellipsoid, 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
SimpleConicProjection()
SimpleConicProjection(int type)

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object that)	Represents quality between possible outputs of Projection.project(ProjCoordinate, ProjCoordinate).
int	hashCode()	Hash of those fields considered in Projection equalituy.
boolean	hasInverse()	Tests whether this projection has an inverse.
void	initialize()	Initialize the projection.
ProjCoordinate	project(double lplam, double lpphi, ProjCoordinate out)	Computes the projection of a given point (i.e.
ProjCoordinate	projectInverse(double xyx, double xyy, ProjCoordinate out)	Computes the inverse projection of a given point (i.e.
String	toString()

Methods inherited from class Projection

clone, 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, inside, inverseProject, inverseProjectRadians, isConformal, isEqualArea, isGeographic, isRectilinear, 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 Object

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

Field Details

n

private double n

rho_c

private double rho_c

rho_0

private double rho_0

sig

private double sig

c1

private double c1

c2

private double c2

type

private int type

EULER

public static final int EULER

See Also:

• Constant Field Values

MURD1

public static final int MURD1

See Also:

• Constant Field Values

MURD2

public static final int MURD2

See Also:

• Constant Field Values

MURD3

public static final int MURD3

See Also:

• Constant Field Values

PCONIC

public static final int PCONIC

See Also:

• Constant Field Values

TISSOT

public static final int TISSOT

See Also:

• Constant Field Values

VITK1

public static final int VITK1

See Also:

• Constant Field Values

EPS10

private static final double EPS10

See Also:

• Constant Field Values

EPS

private static final double EPS

See Also:

• Constant Field Values

Constructor Details

SimpleConicProjection

public SimpleConicProjection()

SimpleConicProjection

public SimpleConicProjection(int type)

Method Details

toString

public String toString()

Overrides:

toString in class ConicProjection

project

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

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)

out - the projected coordinate (in coordinate system units)

Returns:

the target coordinate

projectInverse

public ProjCoordinate projectInverse(double xyx,
 double xyy,
 ProjCoordinate out)

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:

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

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

out - 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

initialize

public void initialize()

Description copied from class: Projection

Initialize the projection. This should be called after setting parameters and before using the projection. This is for performance reasons as initialization may be expensive.

Overrides:

initialize in class Projection

equals

public boolean equals(Object that)

Description copied from class: Projection

Represents quality between possible outputs of Projection.project(ProjCoordinate, ProjCoordinate). Subclasses of Projection should capture additional state that is used in the project method and delgate to base. Note: The name of the projection is not part of equality.

Overrides:

equals in class Projection

hashCode

public int hashCode()

Description copied from class: Projection

Hash of those fields considered in Projection equalituy. Subclasses that override equality should override hashCode.

Overrides:

hashCode in class Projection