Package org.locationtech.proj4j.proj
Class AlbersProjection
- java.lang.Object
-
- org.locationtech.proj4j.proj.Projection
-
- org.locationtech.proj4j.proj.AlbersProjection
-
- All Implemented Interfaces:
java.io.Serializable
,java.lang.Cloneable
- Direct Known Subclasses:
LambertEqualAreaConicProjection
public class AlbersProjection extends Projection
- See Also:
- Serialized Form
-
-
Field Summary
Fields Modifier and Type Field Description private double
c
private double
dd
private double
ec
private double[]
en
private static double
EPS10
private static double
EPSILON
private double
n
private static int
N_ITER
private double
n2
private double
phi1
private double
phi2
private double
rho0
private static double
TOL
private static double
TOL7
-
Fields inherited from class org.locationtech.proj4j.proj.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 AlbersProjection()
-
Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description int
getEPSGCode()
Returns the ESPG code for this projection, or 0 if unknown.boolean
hasInverse()
Tests whether this projection has an inverse.void
initialize()
Initialize the projection.boolean
isEqualArea()
Returns true if this projection is equal areaprivate static double
phi1_(double qs, double Te, double Tone_es)
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.java.lang.String
toString()
-
Methods inherited from class org.locationtech.proj4j.proj.Projection
clone, equals, getAlpha, getAxisOrder, getEllipsoid, 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, inside, inverseProject, inverseProjectRadians, isConformal, 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
-
-
-
-
Field Detail
-
EPS10
private static final double EPS10
- See Also:
- Constant Field Values
-
TOL7
private static final double TOL7
- See Also:
- Constant Field Values
-
ec
private double ec
-
n
private double n
-
c
private double c
-
dd
private double dd
-
n2
private double n2
-
rho0
private double rho0
-
phi1
private double phi1
-
phi2
private double phi2
-
en
private double[] en
-
N_ITER
private static final int N_ITER
- See Also:
- Constant Field Values
-
EPSILON
private static final double EPSILON
- See Also:
- Constant Field Values
-
TOL
private static final double TOL
- See Also:
- Constant Field Values
-
-
Method Detail
-
phi1_
private static double phi1_(double qs, double Te, double Tone_es)
-
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 classProjection
- 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 classProjection
- 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
-
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 classProjection
-
isEqualArea
public boolean isEqualArea()
Returns true if this projection is equal area- Overrides:
isEqualArea
in classProjection
- Returns:
- true if this projection is equal-area
-
hasInverse
public boolean hasInverse()
Description copied from class:Projection
Tests whether this projection has an inverse. If this method returnstrue
then theProjection.inverseProject(ProjCoordinate, ProjCoordinate)
andProjection.inverseProjectRadians(ProjCoordinate, ProjCoordinate)
methods will return meaningful results.- Overrides:
hasInverse
in classProjection
- Returns:
- true if this projection has an inverse
-
getEPSGCode
public int getEPSGCode()
Returns the ESPG code for this projection, or 0 if unknown.- Overrides:
getEPSGCode
in classProjection
-
toString
public java.lang.String toString()
- Overrides:
toString
in classProjection
-
-