Ellipsoid (proj4j 0.1.0 API)

java.lang.Object
- org.osgeo.proj4j.datum.Ellipsoid

All Implemented Interfaces:

Cloneable
```
public class Ellipsoid
extends Object
implements Cloneable
```
A class representing a geographic reference ellipsoid (or more correctly an oblate spheroid), used to model the shape of the surface of the earth.
An oblate spheroid is a geometric surface formed by the rotation of an ellipse about its minor axis. In geodesy this is used as a convenient approximation to the geoid, the true shape of the earth's surface.
An ellipsoid is defined by the following parameters:
- a, the equatorial radius or semi-major axis (see getA())
and one of:
- b, the polar radius or semi-minor axis (see getB())
- f, the reciprocal flattening (f = (a - b) / a)
In order to be used as a model of the geoid, the exact positioning of an ellipsoid relative to the geoid surface needs to be specified. This is provided by means of a geodetic Datum.
Notable ellipsoids in common use include CLARKE_1866, GRS80, and WGS84.
See Also:
Datum

Field Summary

Fields
Modifier and Type	Field and Description
`static Ellipsoid`	`AIRY`
`static Ellipsoid`	`ANDRAE`
`static Ellipsoid`	`APL4_9`
`static Ellipsoid`	`AUST_SA`
`static Ellipsoid`	`AUSTRALIAN`
`static Ellipsoid`	`BESS_NAM`
`static Ellipsoid`	`BESSEL`
`static Ellipsoid`	`CLARKE_1866`
`static Ellipsoid`	`CLARKE_1880`
`static Ellipsoid`	`CPM`
`static Ellipsoid`	`DELMBR`
`double`	`eccentricity`
`double`	`eccentricity2`
`static Ellipsoid[]`	`ellipsoids`
`static Ellipsoid`	`ENGELIS`
`double`	`equatorRadius`
`static Ellipsoid`	`EVEREST`
`static Ellipsoid`	`EVRST48`
`static Ellipsoid`	`EVRST56`
`static Ellipsoid`	`EVRTS69`
`static Ellipsoid`	`EVRTSTSS`
`static Ellipsoid`	`FRSCH60`
`static Ellipsoid`	`FSCHR68`
`static Ellipsoid`	`FSRCH60M`
`static Ellipsoid`	`GRS67`
`static Ellipsoid`	`GRS80`
`static Ellipsoid`	`HELMERT`
`static Ellipsoid`	`HOUGH`
`static Ellipsoid`	`IAU76`
`static Ellipsoid`	`INTERNATIONAL`
`static Ellipsoid`	`INTERNATIONAL_1967`
`static Ellipsoid`	`INTL`
`static Ellipsoid`	`KAULA`
`static Ellipsoid`	`KRASSOVSKY`
`static Ellipsoid`	`LERCH`
`static Ellipsoid`	`MERIT`
`static Ellipsoid`	`MOD_AIRY`
`static Ellipsoid`	`MPRTS`
`static Ellipsoid`	`NAD27`
`static Ellipsoid`	`NAD83`
`String`	`name`
`static Ellipsoid`	`NWL9D`
`static Ellipsoid`	`PLESSIS`
`double`	`poleRadius`
`static Ellipsoid`	`SEASIA`
`static Ellipsoid`	`SGS85`
`String`	`shortName`
`static Ellipsoid`	`SPHERE`
`static Ellipsoid`	`WALBECK`
`static Ellipsoid`	`WGS60`
`static Ellipsoid`	`WGS66`
`static Ellipsoid`	`WGS72`
`static Ellipsoid`	`WGS84`

Constructor Summary

Constructors
Constructor and Description
`Ellipsoid()`
`Ellipsoid(String shortName, double equatorRadius, double poleRadius, double reciprocalFlattening, String name)` Creates a new Ellipsoid.
`Ellipsoid(String shortName, double equatorRadius, double eccentricity2, String name)`

Method Summary

Methods
Modifier and Type	Method and Description
`Object`	`clone()`
`double`	`getA()`
`double`	`getB()`
`double`	`getEccentricitySquared()`
`double`	`getEquatorRadius()`
`String`	`getName()`
`String`	`getShortName()`
`boolean`	`isEqual(Ellipsoid e)`
`boolean`	`isEqual(Ellipsoid e, double e2Tolerance)`
`void`	`setEccentricitySquared(double eccentricity2)`
`void`	`setEquatorRadius(double equatorRadius)`
`void`	`setName(String name)`
`void`	`setShortName(String shortName)`
`String`	`toString()`

Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

name
```
public String name
```

shortName
```
public String shortName
```

equatorRadius
```
public double equatorRadius
```

poleRadius
```
public double poleRadius
```

eccentricity
```
public double eccentricity
```

eccentricity2
```
public double eccentricity2
```

INTERNATIONAL

public static final Ellipsoid INTERNATIONAL

BESSEL
```
public static final Ellipsoid BESSEL
```

CLARKE_1866

public static final Ellipsoid CLARKE_1866

CLARKE_1880

public static final Ellipsoid CLARKE_1880

AIRY
```
public static final Ellipsoid AIRY
```

WGS60
```
public static final Ellipsoid WGS60
```

WGS66
```
public static final Ellipsoid WGS66
```

WGS72
```
public static final Ellipsoid WGS72
```

WGS84
```
public static final Ellipsoid WGS84
```

KRASSOVSKY

public static final Ellipsoid KRASSOVSKY

EVEREST
```
public static final Ellipsoid EVEREST
```

INTERNATIONAL_1967

public static final Ellipsoid INTERNATIONAL_1967

GRS80
```
public static final Ellipsoid GRS80
```

AUSTRALIAN

public static final Ellipsoid AUSTRALIAN

MERIT
```
public static final Ellipsoid MERIT
```

SGS85
```
public static final Ellipsoid SGS85
```

IAU76
```
public static final Ellipsoid IAU76
```

APL4_9
```
public static final Ellipsoid APL4_9
```

NWL9D
```
public static final Ellipsoid NWL9D
```

MOD_AIRY
```
public static final Ellipsoid MOD_AIRY
```

ANDRAE
```
public static final Ellipsoid ANDRAE
```

AUST_SA
```
public static final Ellipsoid AUST_SA
```

GRS67
```
public static final Ellipsoid GRS67
```

BESS_NAM
```
public static final Ellipsoid BESS_NAM
```

CPM
```
public static final Ellipsoid CPM
```

DELMBR
```
public static final Ellipsoid DELMBR
```

ENGELIS
```
public static final Ellipsoid ENGELIS
```

EVRST48
```
public static final Ellipsoid EVRST48
```

EVRST56
```
public static final Ellipsoid EVRST56
```

EVRTS69
```
public static final Ellipsoid EVRTS69
```

EVRTSTSS
```
public static final Ellipsoid EVRTSTSS
```

FRSCH60
```
public static final Ellipsoid FRSCH60
```

FSRCH60M
```
public static final Ellipsoid FSRCH60M
```

FSCHR68
```
public static final Ellipsoid FSCHR68
```

HELMERT
```
public static final Ellipsoid HELMERT
```

HOUGH
```
public static final Ellipsoid HOUGH
```

INTL
```
public static final Ellipsoid INTL
```

KAULA
```
public static final Ellipsoid KAULA
```

LERCH
```
public static final Ellipsoid LERCH
```

MPRTS
```
public static final Ellipsoid MPRTS
```

PLESSIS
```
public static final Ellipsoid PLESSIS
```

SEASIA
```
public static final Ellipsoid SEASIA
```

WALBECK
```
public static final Ellipsoid WALBECK
```

NAD27
```
public static final Ellipsoid NAD27
```

NAD83
```
public static final Ellipsoid NAD83
```

SPHERE
```
public static final Ellipsoid SPHERE
```

ellipsoids

public static final Ellipsoid[] ellipsoids

Constructor Detail

Ellipsoid
```
public Ellipsoid()
```

Ellipsoid

public Ellipsoid(String shortName,
         double equatorRadius,
         double poleRadius,
         double reciprocalFlattening,
         String name)

Creates a new Ellipsoid. One of of poleRadius or reciprocalFlattening must be specified, the other must be zero

Ellipsoid

public Ellipsoid(String shortName,
         double equatorRadius,
         double eccentricity2,
         String name)

Method Detail

clone
```
public Object clone()
```
Overrides:

clone in class Object

setName
```
public void setName(String name)
```

getName
```
public String getName()
```

setShortName

public void setShortName(String shortName)

getShortName
```
public String getShortName()
```

setEquatorRadius

public void setEquatorRadius(double equatorRadius)

getEquatorRadius
```
public double getEquatorRadius()
```

getA
```
public double getA()
```

getB
```
public double getB()
```

setEccentricitySquared

public void setEccentricitySquared(double eccentricity2)

getEccentricitySquared

public double getEccentricitySquared()

isEqual
```
public boolean isEqual(Ellipsoid e)
```

isEqual

public boolean isEqual(Ellipsoid e,
              double e2Tolerance)

toString
```
public String toString()
```
Overrides:

toString in class Object

Class Ellipsoid

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

name

shortName

equatorRadius

poleRadius

eccentricity

eccentricity2

INTERNATIONAL

BESSEL

CLARKE_1866

CLARKE_1880

AIRY

WGS60

WGS66

WGS72

WGS84

KRASSOVSKY

EVEREST

INTERNATIONAL_1967

GRS80

AUSTRALIAN

MERIT

SGS85

IAU76

APL4_9

NWL9D

MOD_AIRY

ANDRAE

AUST_SA

GRS67

BESS_NAM

CPM

DELMBR

ENGELIS

EVRST48

EVRST56

EVRTS69

EVRTSTSS

FRSCH60

FSRCH60M

FSCHR68

HELMERT

HOUGH

INTL

KAULA

LERCH

MPRTS

PLESSIS

SEASIA

WALBECK

NAD27

NAD83

SPHERE

ellipsoids

Constructor Detail

Ellipsoid

Ellipsoid

Ellipsoid

Method Detail

clone

setName

getName

setShortName

getShortName

setEquatorRadius

getEquatorRadius

getA

getB

setEccentricitySquared

getEccentricitySquared

isEqual

isEqual

toString