Class AzimuthalProjection

java.lang.Object

org.locationtech.proj4j.proj.Projection

org.locationtech.proj4j.proj.AzimuthalProjection

All Implemented Interfaces:

Serializable, Cloneable

Direct Known Subclasses:

EqualAreaAzimuthalProjection, EquidistantAzimuthalProjection, GnomonicAzimuthalProjection, OrthographicAzimuthalProjection, StereographicAzimuthalProjection

public abstract class AzimuthalProjection
extends Projection

The superclass for all azimuthal map projections

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected double	cosphi0
static final int	EQUATOR
private double	mapRadius
protected int	mode
static final int	NORTH_POLE
static final int	OBLIQUE
protected double	sinphi0
static final int	SOUTH_POLE

Fields inherited from class 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
AzimuthalProjection()
AzimuthalProjection(double projectionLatitude, double projectionLongitude)

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object that)	Represents quality between possible outputs of Projection.project(ProjCoordinate, ProjCoordinate).
double	getMapRadius()
int	hashCode()	Hash of those fields considered in Projection equalituy.
void	initialize()	Initialize the projection.
boolean	inside(double lon, double lat)	Returns true if the given lat/long point is visible in this projection
void	setMapRadius(double mapRadius)	Set the map radius (in degrees).

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, hasInverse, inverseProject, inverseProjectRadians, isConformal, isEqualArea, isGeographic, isRectilinear, normalizeLongitude, normalizeLongitudeRadians, parallelsAreParallel, project, project, projectInverse, 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, toString

Methods inherited from class Object

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

Field Details

NORTH_POLE

public static final int NORTH_POLE

See Also:

• Constant Field Values

SOUTH_POLE

public static final int SOUTH_POLE

See Also:

• Constant Field Values

EQUATOR

public static final int EQUATOR

See Also:

• Constant Field Values

OBLIQUE

public static final int OBLIQUE

See Also:

• Constant Field Values

mode

protected int mode

sinphi0

protected double sinphi0

cosphi0

protected double cosphi0

mapRadius

private double mapRadius

Constructor Details

AzimuthalProjection

public AzimuthalProjection()

AzimuthalProjection

public AzimuthalProjection(double projectionLatitude,
 double projectionLongitude)

Method Details

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

inside

public boolean inside(double lon,
 double lat)

Description copied from class: Projection

Returns true if the given lat/long point is visible in this projection

Overrides:

inside in class Projection

setMapRadius

public void setMapRadius(double mapRadius)

Set the map radius (in degrees). 180 shows a hemisphere, 360 shows the whole globe.

getMapRadius

public double getMapRadius()

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