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EPSG constants
Constants§
- ALBERS_
EQUAL_ AREA - Albers Equal Area
- ALGO
- Used by Transverse Mercator. Input is a string
- ANGLE_
RECTIFIED_ TO_ SKEW_ GRID - Angle from Rectified to Skew Grid - ANGLE UNIT
- APPROX
- Used by Transverse Mercator. Input is boolean
- AZIMUTHAL_
EQUIDISTANT - Azimuthal Equidistant
- AZIMUTH_
PROJECTION_ CENTRE - Azimuth at projection centre - UNIT
- BONNE
- Bonne
- CASSINI
- Cassini-Soldner
- CLARKE_
FT_ TO_ M - Linear foot Clarke to meters
- CZECH
- Czech Republic flag (Used by Krovak). Value is a “bool”
- EASTING_
AT_ FALSE_ ORIGIN - Easting at false origin - LENGTH UNIT
- EPS10
- Common Tolerance
- EQUAL_
EARTH - Equal Earth
- EQUIDISTANT_
CONIC - Equidistant Conic
- EQUIDISTANT_
CYLINDRICAL - Equidistant Cylindrical
- FALSE_
EASTING - False easting - LENGTH UNIT
- FALSE_
NORTHING - False northing - LENGTH UNIT
- FT_TO_M
- feet to meters
- GON2R
- The gon is equivalent to the grad and is primarily used in surveying. A full circle is 400 gons. [1 gon = π/200 radians]
- GRD2R
- The grad, or gradian, is a unit of angular measure where a right angle is 100 grads, and a full circle is 400 grads. [1 grad = π/200 radians]
- GUAM
- GUAM flag. Used by Azimuthal Equidistant projection
- HOTINE_
OBLIQUE_ MERCATOR_ VARIANT_ A - Hotine Oblique Mercator (variant A)
- HOTINE_
OBLIQUE_ MERCATOR_ VARIANT_ B - Hotine Oblique Mercator (variant B)
- HYPERBOLIC
- hyperbolic
- INDIAN_
FT_ TO_ M - Linear foot Indian to meters
- INDIAN_
YD_ TO_ M - Linear Yard Indian to meters
- INTERNATIONAL_
FATHOM_ TO_ M - International Fathom to meters
- INTERNATIONAL_
NAUTICAL_ MILE_ TO_ M - Linear Mile International Nautical
- KROVAK
- Krovak
- KROVAK_
MODIFIED - Krovak Modified
- KROVAK_
MODIFIED_ NORTH_ ORIENTED - Krovak Modified (North Orientated)
- KROVAK_
NORTH_ ORIENTED - Krovak (North Orientated)
- LABORDE
- Laborde
- LAMBERT_
AZIMUTHAL_ EQUAL_ AREA - Lambert Azimuthal Equal Area
- LAMBERT_
AZIMUTHAL_ EQUAL_ AREA_ SPHERICAL - Lambert Azimuthal Equal Area (Spherical)
- LAMBERT_
CONFORMAL_ CONIC_ 1SP - Lambert Conic Conformal (1SP)
- LAMBERT_
CONFORMAL_ CONIC_ 2SP - Lambert Conic Conformal (2SP)
- LATITUDE_
OF_ FALSE_ ORIGIN - Latitude of False Origin - ANGLE UNIT
- LATITUDE_
OF_ FIRST_ POINT - LAT1 or Latitude_Of_1st_Point or Latitude of 1st point
- LATITUDE_
OF_ FIRST_ STANDARD_ PARALLEL - Latitude of 1st standard parallel - ANGLE UNIT
- LATITUDE_
OF_ NATURAL_ ORIGIN - Latitude of natural origin - ANGLE UNIT
- LATITUDE_
OF_ PROJECTION_ CENTRE - Latitude of projection centre - ANGLE UNIT
- LATITUDE_
OF_ SECOND_ POINT - LAT2 or Latitude_Of_2nd_Point or Latitude of 2nd point
- LATITUDE_
OF_ SECOND_ STANDARD_ PARALLEL - Latitude of 2nd standard parallel - ANGLE UNIT
- LATITUDE_
STD_ PARALLEL - Latitude of standard parallel - UNIT
- LAT_B
- Used by Airy. Input is in degrees
- LINK_
FT_ TO_ M - Linear foot Link to meters
- LONGITUDE_
OF_ FALSE_ ORIGIN - Longitude of False Origin - ANGLE UNIT
- LONGITUDE_
OF_ FIRST_ POINT - LON1 or Longitude_Of_1st_Point or Longitude of 1st point
- LONGITUDE_
OF_ NATURAL_ ORIGIN - Longitude of natural origin - ANGLE UNIT
- LONGITUDE_
OF_ ORIGIN - Longitude of origin - ANGLE UNIT
- LONGITUDE_
OF_ PROJECTION_ CENTRE - Longitude of projection centre - ANGLE UNIT
- LONGITUDE_
OF_ SECOND_ POINT - LON2 or Longitude_Of_2nd_Point or Longitude of 2nd point
- MERCATOR
- Mercator (Spherical)
- MERCATOR_
VARIANT_ A - Mercator Variant A
- MERCATOR_
VARIANT_ B - Mercator Variant B
- MIN2R
- An arc minute is 1/60th of a degree [(π/180) / 60 radians]
- M_VAL
- User defined m value file
- NORTHING_
AT_ FALSE_ ORIGIN - Northing at false origin - LENGTH UNIT
- NO_CUT
- Used by Airy. Input is boolean
- NO_OFF
- No Off. An OMERC projection variable
- NO_
ROTATION - NO ROTATION Flag. Used by OMERC projections
- NO_UOFF
- No Unsigned Off. An OMERC projection variable
- N_VAL
- User defined n value file
- OBLIQUE_
STEREOGRAPHIC - Oblique Stereographic
- ORTHOGRAPHIC
- Orthographic
- PJD_
3PARAM - 3 parameter transform
- PJD_
7PARAM - 7 parameter transform
- PJD_
GRIDSHIFT - Grid shift transform
- PJD_
NODATUM - No datum applied
- PJD_
WGS84 - WGS84 or equivalent
- POLAR_
STEREOGRAPHIC_ VARIANT_ A - Polar Stereographic (variant A)
- POLAR_
STEREOGRAPHIC_ VARIANT_ B - Polar Stereographic (variant B)
- POLAR_
STEREOGRAPHIC_ VARIANT_ C - Polar Stereographic (variant C)
- POLYCONIC
- Polyconic
- RA4
- 1/6
- RA6
- 17/360
- SCALE_
FACTOR_ AT_ NATURAL_ ORIGIN - Scale factor at natural origin - SCALE UNIT
- SEC2R
- An arc second is 1/60th of an arc minute, or 1/3600th of a degree [(π/180) / 3600 radians]
- SEC_
TO_ RAD - 1/4 π - Sec to Radians
- SIXTH
- ellipoid pj_set_ell.c
- SOMERC
- Swiss Oblique Cylindrical
- SOUTH
- Used by AEA. Input is boolean
- SPI
- SPI is slightly greater than Math.PI, so values that exceed the -180..180 degree range by a tiny amount don’t get wrapped. This prevents points that have drifted from their original location along the 180th meridian (due to floating point error) from changing their sign.
- SRS_
WGS84_ ESQUARED - SRS WGS84 esquared only used in grid shift transforms
- SRS_
WGS84_ SEMIMAJOR - SRS WGS84 semimajor only used in grid shift transforms
- SRS_
WGS84_ SEMIMINOR - SRS WGS84 semiminor only used in grid shift transforms
- THETA
- User defined theta file
- TRANSVERSE_
MERCATOR - Transverse Mercator
- TRANSVERSE_
MERCATOR_ SOUTH_ ORIENTATED - Transverse Mercator (South Orientated)
- US_
FT_ TO_ M - US feet to meters (1200 / 3937)
- US_
MOD_ FT_ TO_ M - US (modified) feet to meters (1200 / 3937)
- WEB_
MERCATOR - Web Mercator / Pseudo Mercator Projection
- ZONE
- UTM Zone (Used by Universal Transverse Mercator). Value is “real” in range 1-60
Functions§
- name_
to_ param_ id - Converts a name to a parameter id