Package org.locationtech.proj4j.proj
Class Eckert6Projection
java.lang.Object
org.locationtech.proj4j.proj.Projection
org.locationtech.proj4j.proj.CylindricalProjection
org.locationtech.proj4j.proj.PseudoCylindricalProjection
org.locationtech.proj4j.proj.Eckert6Projection
- All Implemented Interfaces:
Serializable
,Cloneable
- See Also:
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Field Summary
FieldsModifier and TypeFieldDescriptionprivate static final double
private static final double
private static final double
private static final int
private static final double
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
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionboolean
Tests whether this projection has an inverse.boolean
Tests whether this projection is equal-area An equal-area projection preserves relative sizes of projected areas.project
(double lam, double phi, ProjCoordinate xy) Computes the projection of a given point (i.e.projectInverse
(double x, double y, ProjCoordinate lp) Computes the inverse projection of a given point (i.e.toString()
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, 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
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Field Details
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n
private static final double n- See Also:
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C_y
private static final double C_y -
C_x
private static final double C_x -
MAX_ITER
private static final int MAX_ITER- See Also:
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LOOP_TOL
private static final double LOOP_TOL- See Also:
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Constructor Details
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Eckert6Projection
public Eckert6Projection()
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Method Details
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project
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:
lam
- the geographic x ordinate (in radians)phi
- the geographic y ordinatee (in radians)xy
- the projected coordinate (in coordinate system units)- Returns:
- the target coordinate
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projectInverse
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:
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
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hasInverse
public boolean hasInverse()Description copied from class:Projection
Tests whether this projection has an inverse. If this method returns true 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
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isEqualArea
public boolean isEqualArea()Description copied from class:Projection
Tests whether this projection is equal-area An equal-area projection preserves relative sizes of projected areas.- Overrides:
isEqualArea
in classProjection
- Returns:
- true if this projection is equal-area
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toString
- Overrides:
toString
in classPseudoCylindricalProjection
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