/*
* GeoTools - The Open Source Java GIS Toolkit
* http://geotools.org
*
* (C) 2005-2008, Open Source Geospatial Foundation (OSGeo)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*/
package org.geotools.coverage.grid.io.imageio.geotiff.codes;
/**
* 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
*
* @author Simone Giannecchini
* @since 2.3
*
*
*
* @source $URL$
*/
public final class GeoTiffGCSCodes {
public static final int GCS_NAD27 = 4267;
public static final int GCS_NAD83 = 4269;
public static final int GCS_WGS_72 = 4322;
public static final int GCS_WGS_72BE = 4324;
public static final int GCS_WGS_84 = 4326;
public static final int GCSE_WGS84 = 4030;
/**
* An index into the geoKey directory for the directory version number
*/
public static final int GEO_KEY_DIRECTORY_VERSION_INDEX = 0;
/**
* An index into the geoKey directory for the geoKey minor revision number
*/
public static final int GEO_KEY_MINOR_REVISION_INDEX = 2;
/**
* An index into the geoKey directory for the number of geoKeys
*/
public static final int GEO_KEY_NUM_KEYS_INDEX = 3;
/**
* An index into the geoKey directory for the geoKey revision number
*/
public static final int GEO_KEY_REVISION_INDEX = 1;
/**
* 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
*/
public static final int GeogAngularUnitsGeoKey = 2054;
/**
* GeogAngularUnitSizeGeoKey Key ID = 2055 Type = DOUBLE Units: radians
* Allows the definition of user-defined angular geographic units, as
* measured in radians.
*/
public static final int GeogAngularUnitSizeGeoKey = 2055;
/**
* 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.
*/
public static final int GeogAzimuthUnitsGeoKey = 2060;
/**
* GeogCitationGeoKey Key ID = 2049 Type = ASCII Values = text General
* citation and reference for all Geographic CS parameters.
*/
public static final int GeogCitationGeoKey = 2049;
/**
* 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] ]
*/
public static final int GeogEllipsoidGeoKey = 2056;
/**
* 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
*/
public static final int GeogGeodeticDatumGeoKey = 2050;
/**
* 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.
*/
public static final int GeogInvFlatteningGeoKey = 2059;
/**
* 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.
*/
public static final int GeogLinearUnitsGeoKey = 2052;
/**
* GeogLinearUnitSizeGeoKey Key ID = 2053 Type = DOUBLE Units: meters Allows
* the definition of user-defined linear geocentric units, as measured in
* meters.
*/
public static final int GeogLinearUnitSizeGeoKey = 2053;
/**
* 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.
*/
public static final int GeogPrimeMeridianGeoKey = 2051;
/**
* 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.
*/
public static final int GeogPrimeMeridianLongGeoKey = 2061;
/**
* 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)
*/
public static final int GeographicTypeGeoKey = 2048;
/**
* GeogSemiMajorAxisGeoKey Key ID = 2057 Type = DOUBLE Units: Geocentric CS
* Linear Units Allows the specification of user-defined Ellipsoid
* Semi-Major Axis (a).
*/
public static final int GeogSemiMajorAxisGeoKey = 2057;
/**
* GeogSemiMinorAxisGeoKey Key ID = 2058 Type = DOUBLE Units: Geocentric CS
* Linear Units Allows the specification of user-defined Ellipsoid
* Semi-Minor Axis (b).
*/
public static final int GeogSemiMinorAxisGeoKey = 2058;
/**
* 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.
*/
public static final int GTCitationGeoKey = 1026;
public static final int ModelTypeGeocentric = 3;
public static final int ModelTypeGeographic = 2;
private GeoTiffGCSCodes() {
}
}