GeoTiffGCSCodes (Geotools modules 21.0 API)

Object
- GeoTiffGCSCodes

```
public final class GeoTiffGCSCodes
extends Object
```
6.3.2.1 Geographic CS Type Codes Note: A Geographic coordinate system consists of both a datum and a Prime Meridian. Some of the names are very similar, and differ only in the Prime Meridian, so be sure to use the correct one. The codes beginning with GCSE_xxx are unspecified GCS which use ellipsoid (xxx); it is recommended that only the codes beginning with GCS_ be used if possible. Ranges: 0 = undefined [ 1, 1000] = Obsolete EPSG/POSC Geographic Codes [ 1001, 3999] = Reserved by GeoTIFFWritingUtilities [ 4000, 4199] = EPSG GCS Based on Ellipsoid only [ 4200, 4999] = EPSG GCS Based on EPSG Datum [ 5000, 32766] = Reserved by GeoTIFFWritingUtilities 32767 = user-defined GCS [32768, 65535] = Private User

Since:

2.3

Author:

Simone Giannecchini

Field Summary

Fields
Modifier and Type	Field and Description
`static int`	`GCS_NAD27`
`static int`	`GCS_NAD83`
`static int`	`GCS_WGS_72`
`static int`	`GCS_WGS_72BE`
`static int`	`GCS_WGS_84`
`static int`	`GCSE_WGS84`
`static int`	`GEO_KEY_DIRECTORY_VERSION_INDEX` An index into the geoKey directory for the directory version number
`static int`	`GEO_KEY_MINOR_REVISION_INDEX` An index into the geoKey directory for the geoKey minor revision number
`static int`	`GEO_KEY_NUM_KEYS_INDEX` An index into the geoKey directory for the number of geoKeys
`static int`	`GEO_KEY_REVISION_INDEX` An index into the geoKey directory for the geoKey revision number
`static int`	`GeogAngularUnitsGeoKey` GeogAngularUnitsGeoKey Key ID = 2054 Type = SHORT (code) Values = Section 6.3.1.4 Codes Allows the definition of geocentric CS Linear units for user-defined GCS and for ellipsoids.
`static int`	`GeogAngularUnitSizeGeoKey` GeogAngularUnitSizeGeoKey Key ID = 2055 Type = DOUBLE Units: radians Allows the definition of user-defined angular geographic units, as measured in radians.
`static int`	`GeogAzimuthUnitsGeoKey` GeogAzimuthUnitsGeoKey Key ID = 2060 Type = SHORT (code) Values = Section 6.3.1.4 Codes This key may be used to specify the angular units of measurement used to defining azimuths, in geographic coordinate systems.
`static int`	`GeogCitationGeoKey` GeogCitationGeoKey Key ID = 2049 Type = ASCII Values = text General citation and reference for all Geographic CS parameters.
`static int`	`GeogEllipsoidGeoKey` GeogEllipsoidGeoKey Key ID = 2056 Type = SHORT (code) Values = Section 6.3.2.3 Codes http://www.remotesensing.org/geotiff/spec/geotiff6.html#6.3.2.3 This key may be used to specify the coded ellipsoid used in the geodetic datum of the Geographic Coordinate System.
`static int`	`GeogGeodeticDatumGeoKey` GeogGeodeticDatumGeoKey Key ID = 2050 Type = SHORT (code) Values = Section 6.3.2.2 Codes http://www.remotesensing.org/geotiff/spec/geotiff6.html#6.3.2.2 This key may be used to specify the horizontal datum, defining the size, position and orientation of the reference ellipsoid used in user-defined geographic coordinate systems.
`static int`	`GeogInvFlatteningGeoKey` GeogInvFlatteningGeoKey Key ID = 2059 Type = DOUBLE Units: none.
`static int`	`GeogLinearUnitsGeoKey` GeogLinearUnitsGeoKey Key ID = 2052 Type = SHORT Values: Section 6.3.1.3 Codes http://www.remotesensing.org/geotiff/spec/geotiff6.html#6.3.1.3 Allows the definition of geocentric CS linear units for user-defined GCS.
`static int`	`GeogLinearUnitSizeGeoKey` GeogLinearUnitSizeGeoKey Key ID = 2053 Type = DOUBLE Units: meters Allows the definition of user-defined linear geocentric units, as measured in meters.
`static int`	`GeogPrimeMeridianGeoKey` GeogPrimeMeridianGeoKey Key ID = 2051 Type = SHORT (code) Units: Section 6.3.2.4 code http://www.remotesensing.org/geotiff/spec/geotiff6.html#6.3.2.4 Allows specification of the location of the Prime meridian for user-defined geographic coordinate systems.
`static int`	`GeogPrimeMeridianLongGeoKey` GeogPrimeMeridianLongGeoKey Key ID = 2061 Type = DOUBLE Units = GeogAngularUnits This key allows definition of user-defined Prime Meridians, the location of which is defined by its longitude relative to Greenwich.
`static int`	`GeographicTypeGeoKey` GeographicTypeGeoKey Key ID = 2048 Type = SHORT (code) Values = Section 6.3.2.1 Codes http://www.remotesensing.org/geotiff/spec/geotiff6.html#6.3.2.1 This key may be used to specify the code for the geographic coordinate system used to map lat-long to a specific ellipsoid over the earth.
`static int`	`GeogSemiMajorAxisGeoKey` GeogSemiMajorAxisGeoKey Key ID = 2057 Type = DOUBLE Units: Geocentric CS Linear Units Allows the specification of user-defined Ellipsoid Semi-Major Axis (a).
`static int`	`GeogSemiMinorAxisGeoKey` GeogSemiMinorAxisGeoKey Key ID = 2058 Type = DOUBLE Units: Geocentric CS Linear Units Allows the specification of user-defined Ellipsoid Semi-Minor Axis (b).
`static int`	`GTCitationGeoKey` GTCitationGeoKey Key ID = 1026 Type = ASCII As with all the "Citation" GeoKeys, this is provided to give an ASCII reference to published documentation on the overall configuration of this GeoTIFFWritingUtilities file.
`static int`	`ModelTypeGeocentric`
`static int`	`ModelTypeGeographic`

Method Summary
- Methods inherited from class Object
  clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - GCS_NAD27
```
public static final int GCS_NAD27
```
    See Also:
    
    Constant Field Values
  - GCS_NAD83
```
public static final int GCS_NAD83
```
    See Also:
    
    Constant Field Values
  - GCS_WGS_72
```
public static final int GCS_WGS_72
```
    See Also:
    
    Constant Field Values
  - GCS_WGS_72BE
```
public static final int GCS_WGS_72BE
```
    See Also:
    
    Constant Field Values
  - GCS_WGS_84
```
public static final int GCS_WGS_84
```
    See Also:
    
    Constant Field Values
  - GCSE_WGS84
```
public static final int GCSE_WGS84
```
    See Also:
    
    Constant Field Values
  - GEO_KEY_DIRECTORY_VERSION_INDEX
```
public static final int GEO_KEY_DIRECTORY_VERSION_INDEX
```
    An index into the geoKey directory for the directory version number
    
    See Also:
    
    Constant Field Values
  - GEO_KEY_MINOR_REVISION_INDEX
```
public static final int GEO_KEY_MINOR_REVISION_INDEX
```
    An index into the geoKey directory for the geoKey minor revision number
    
    See Also:
    
    Constant Field Values
  - GEO_KEY_NUM_KEYS_INDEX
```
public static final int GEO_KEY_NUM_KEYS_INDEX
```
    An index into the geoKey directory for the number of geoKeys
    
    See Also:
    
    Constant Field Values
  - GEO_KEY_REVISION_INDEX
```
public static final int GEO_KEY_REVISION_INDEX
```
    An index into the geoKey directory for the geoKey revision number
    
    See Also:
    
    Constant Field Values
  - GeogAngularUnitsGeoKey
```
public static final int GeogAngularUnitsGeoKey
```
    GeogAngularUnitsGeoKey Key ID = 2054 Type = SHORT (code) Values = Section 6.3.1.4 Codes Allows the definition of geocentric CS Linear units for user-defined GCS and for ellipsoids. GeoKey Requirements for "user-defined" units: GeogCitationGeoKey GeogAngularUnitSizeGeoKey
    
    See Also:
    
    Constant Field Values
  - GeogAngularUnitSizeGeoKey
```
public static final int GeogAngularUnitSizeGeoKey
```
    GeogAngularUnitSizeGeoKey Key ID = 2055 Type = DOUBLE Units: radians Allows the definition of user-defined angular geographic units, as measured in radians.
    
    See Also:
    
    Constant Field Values
  - GeogAzimuthUnitsGeoKey
```
public static final int GeogAzimuthUnitsGeoKey
```
    GeogAzimuthUnitsGeoKey Key ID = 2060 Type = SHORT (code) Values = Section 6.3.1.4 Codes This key may be used to specify the angular units of measurement used to defining azimuths, in geographic coordinate systems. These may be used for defining azimuthal parameters for some projection algorithms, and may not necessarily be the same angular units used for lat-long.
    
    See Also:
    
    Constant Field Values
  - GeogCitationGeoKey
```
public static final int GeogCitationGeoKey
```
    GeogCitationGeoKey Key ID = 2049 Type = ASCII Values = text General citation and reference for all Geographic CS parameters.
    
    See Also:
    
    Constant Field Values
  - GeogEllipsoidGeoKey
```
public static final int GeogEllipsoidGeoKey
```
    GeogEllipsoidGeoKey Key ID = 2056 Type = SHORT (code) Values = Section 6.3.2.3 Codes http://www.remotesensing.org/geotiff/spec/geotiff6.html#6.3.2.3 This key may be used to specify the coded ellipsoid used in the geodetic datum of the Geographic Coordinate System. GeoKey Requirements for User-Defined Ellipsoid: GeogCitationGeoKey [GeogSemiMajorAxisGeoKey, [GeogSemiMinorAxisGeoKey | GeogInvFlatteningGeoKey] ]
    
    See Also:
    
    Constant Field Values
  - GeogGeodeticDatumGeoKey
```
public static final int GeogGeodeticDatumGeoKey
```
    GeogGeodeticDatumGeoKey Key ID = 2050 Type = SHORT (code) Values = Section 6.3.2.2 Codes http://www.remotesensing.org/geotiff/spec/geotiff6.html#6.3.2.2 This key may be used to specify the horizontal datum, defining the size, position and orientation of the reference ellipsoid used in user-defined geographic coordinate systems. GeoKey Requirements for User-Defined Horizontal Datum: GeogCitationGeoKey GeogEllipsoidGeoKey
    
    See Also:
    
    Constant Field Values
  - GeogInvFlatteningGeoKey
```
public static final int GeogInvFlatteningGeoKey
```
    GeogInvFlatteningGeoKey Key ID = 2059 Type = DOUBLE Units: none. Allows the specification of the inverse of user-defined Ellipsoid's flattening parameter (f). The eccentricity-squared e^2 of the ellipsoid is related to the non-inverted f by: e^2 = 2f - f^2 Note: if the ellipsoid is spherical the inverse-flattening becomes infinite; use the GeogSemiMinorAxisGeoKey instead, and set it equal to the semi-major axis length.
    
    See Also:
    
    Constant Field Values
  - GeogLinearUnitsGeoKey
```
public static final int GeogLinearUnitsGeoKey
```
    GeogLinearUnitsGeoKey Key ID = 2052 Type = SHORT Values: Section 6.3.1.3 Codes http://www.remotesensing.org/geotiff/spec/geotiff6.html#6.3.1.3 Allows the definition of geocentric CS linear units for user-defined GCS.
    
    See Also:
    
    Constant Field Values
  - GeogLinearUnitSizeGeoKey
```
public static final int GeogLinearUnitSizeGeoKey
```
    GeogLinearUnitSizeGeoKey Key ID = 2053 Type = DOUBLE Units: meters Allows the definition of user-defined linear geocentric units, as measured in meters.
    
    See Also:
    
    Constant Field Values
  - GeogPrimeMeridianGeoKey
```
public static final int GeogPrimeMeridianGeoKey
```
    GeogPrimeMeridianGeoKey Key ID = 2051 Type = SHORT (code) Units: Section 6.3.2.4 code http://www.remotesensing.org/geotiff/spec/geotiff6.html#6.3.2.4 Allows specification of the location of the Prime meridian for user-defined geographic coordinate systems. The default standard is Greenwich, England.
    
    See Also:
    
    Constant Field Values
  - GeogPrimeMeridianLongGeoKey
```
public static final int GeogPrimeMeridianLongGeoKey
```
    GeogPrimeMeridianLongGeoKey Key ID = 2061 Type = DOUBLE Units = GeogAngularUnits This key allows definition of user-defined Prime Meridians, the location of which is defined by its longitude relative to Greenwich.
    
    See Also:
    
    Constant Field Values
  - GeographicTypeGeoKey
```
public static final int GeographicTypeGeoKey
```
    GeographicTypeGeoKey Key ID = 2048 Type = SHORT (code) Values = Section 6.3.2.1 Codes http://www.remotesensing.org/geotiff/spec/geotiff6.html#6.3.2.1 This key may be used to specify the code for the geographic coordinate system used to map lat-long to a specific ellipsoid over the earth. GeoKey Requirements for User-Defined geographic CS: GeogCitationGeoKey GeogGeodeticDatumGeoKey GeogAngularUnitsGeoKey (if not degrees) GeogPrimeMeridianGeoKey (if not Greenwich)
    
    See Also:
    
    Constant Field Values
  - GeogSemiMajorAxisGeoKey
```
public static final int GeogSemiMajorAxisGeoKey
```
    GeogSemiMajorAxisGeoKey Key ID = 2057 Type = DOUBLE Units: Geocentric CS Linear Units Allows the specification of user-defined Ellipsoid Semi-Major Axis (a).
    
    See Also:
    
    Constant Field Values
  - GeogSemiMinorAxisGeoKey
```
public static final int GeogSemiMinorAxisGeoKey
```
    GeogSemiMinorAxisGeoKey Key ID = 2058 Type = DOUBLE Units: Geocentric CS Linear Units Allows the specification of user-defined Ellipsoid Semi-Minor Axis (b).
    
    See Also:
    
    Constant Field Values
  - GTCitationGeoKey
```
public static final int GTCitationGeoKey
```
    GTCitationGeoKey Key ID = 1026 Type = ASCII As with all the "Citation" GeoKeys, this is provided to give an ASCII reference to published documentation on the overall configuration of this GeoTIFFWritingUtilities file.
    
    See Also:
    
    Constant Field Values
  - ModelTypeGeocentric
```
public static final int ModelTypeGeocentric
```
    See Also:
    
    Constant Field Values
  - ModelTypeGeographic
```
public static final int ModelTypeGeographic
```
    See Also:
    
    Constant Field Values

Class GeoTiffGCSCodes

Field Summary

Method Summary

Methods inherited from class Object

Field Detail

GCS_NAD27

GCS_NAD83

GCS_WGS_72

GCS_WGS_72BE

GCS_WGS_84

GCSE_WGS84

GEO_KEY_DIRECTORY_VERSION_INDEX

GEO_KEY_MINOR_REVISION_INDEX

GEO_KEY_NUM_KEYS_INDEX

GEO_KEY_REVISION_INDEX

GeogAngularUnitsGeoKey

GeogAngularUnitSizeGeoKey

GeogAzimuthUnitsGeoKey

GeogCitationGeoKey

GeogEllipsoidGeoKey

GeogGeodeticDatumGeoKey

GeogInvFlatteningGeoKey

GeogLinearUnitsGeoKey

GeogLinearUnitSizeGeoKey

GeogPrimeMeridianGeoKey

GeogPrimeMeridianLongGeoKey

GeographicTypeGeoKey

GeogSemiMajorAxisGeoKey

GeogSemiMinorAxisGeoKey

GTCitationGeoKey

ModelTypeGeocentric

ModelTypeGeographic