GeoProjectionData

GeoProjectionData["projection","property"]
gives the value of the specified property for the specified cartographic projection.

GeoProjectionData["projection"]
gives the complete options for the default form of the specified projection.

DetailsDetails

  • GeoProjectionData[] gives the list of available cartographic projections.
  • GeoProjectionData["Classes"] gives a list of all supported classes of projections.
  • GeoProjectionData["Spherical"] gives the list of all projections that refer to a spherical model.
  • GeoProjectionData["Ellipsoidal"] gives the list of all projections that refer to an ellipsoidal model.
  • GeoProjectionData["projection","Properties"] gives the names of all parameters and properties available for the projection specified by .
  • Naming-related properties include:
  • "AlternateNames"alternate English names
    "Name"English name
    "StandardName"standard Wolfram Language name
  • GeoProjectionData["projection"] returns a result of the form , giving the default values of the parameters and properties . Common properties include:
  • "Centering"latitude and longitude defining the origin of the projection
    "CentralScaleFactor"scale factor at the central meridian or center of projection
    "GridOrigin"grid coordinates of the central parallel and meridian
    "ReferenceModel"what reference sphere or ellipsoid to use
    "StandardParallels"standard parallel {ϕ} or parallels
  • Typical settings for include:
  • loncentral meridian
    {lat,lon} or GeoPosition[{lat,lon}]central parallel lat and meridian lon
    {{lat,lon},α}point on center line and azimuth (Oblique Mercator)
    {{lat1,lon1},{lat2,lon2}}two points on center line (Oblique Mercator)
  • Valid settings for :
  • rradius of reference sphere
    {a,b}semimajor and semiminor axis of reference ellipsoid
    {a,{invf}}semimajor axes and inverse flattening
    "name"name of the geodetic datum or reference ellipsoid
  • Available projections for a spherical reference model include:
  • "Aitoff"Aitoff modified azimuthal
    "Albers"Albers equal-area conic
    "AzimuthalEquidistant"azimuthal equidistant
    "BipolarObliqueConicConformal"bipolar oblique conic conformal
    "Bonne"Bonne
    "Cassini"Cassini
    "ConicEquidistant"conic equidistant
    "CylindricalEqualArea"cylindrical equal-area
    "CylindricalEquidistant"cylindrical equidistant
    "EckertI"Eckert I
    "EckertII"Eckert II
    "EckertIII"Eckert III
    "EckertIV"Eckert IV
    "EckertV"Eckert V
    "EckertVI"Eckert VI
    "Equirectangular"simple cylindrical equirectangular
    "Gnomonic"gnomonic
    "Hammer"Hammer modified azimuthal equal-area
    "LambertAzimuthal"Lambert azimuthal equal-area
    "LambertConformalConic"Lambert conformal conic
    "LambertCylindrical"Lambert cylindrical
    "Mercator"Mercator
    "MillerCylindrical"Miller cylindrical
    "Mollweide"Mollweide
    "ObliqueMercator"oblique Mercator
    "Orthographic"orthographic
    "Stereographic"stereographic
    "TransverseMercator"transverse Mercator
    "Polyconic"polyconic
    "Robinson"Robinson
    "Sinusoidal"sinusoidal
    "VanDerGrinten"Van der Grinten
    "Wiechel"Wiechel equal-area
    "WinkelI"Winkel I
    "WinkelII"Winkel II
    "WinkelTripel"Winkel tripel
  • Available projections for an ellipsoidal reference model include:
  • "Albers"Albers equal-area conic
    "AzimuthalEquidistant"azimuthal equidistant
    "ConicEquidistant"conic equidistant
    "LambertConformalConic"Lambert conformal conic
    "LambertConformalConicNGS"Lambert conformal conic (NGS)
    "LambertCylindrical"Lambert cylindrical
    "Mercator"Mercator
    "ObliqueMercator"oblique Mercator
    "ObliqueMercatorNGS"oblique Mercator (NGS)
    "Stereographic"stereographic
    "TransverseMercator"transverse Mercator
  • GeoProjectionData contains both general projections like and explicit realizations of those general projections, like the members of the family.
  • GeoProjectionData supports all projections used by the U.S. State Plane Coordinate Systems from 1927 to 1983.
  • GeoProjectionData["SPCS27"] and GeoProjectionData["SPCS83"] give the names of all state plane zones.
  • GeoProjectionData["UTMZone"] gives names for all UTM zones. GeoProjectionData["UPSZone"] gives the names of the two UPS zones.
  • For any state plane or UTM zone, GeoProjectionData["zone"] gives the name and the standard parameters of the projection used.
  • A geo projection proj can be used in GeoGridPosition[pos,proj] or in GeoGraphics[prims,GeoProjection->proj].

ExamplesExamplesopen allclose all

Basic Examples  (4)Basic Examples  (4)

Default parameters used for the spherical Bonne projection, referenced to a unit sphere:

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Use a geo projection to convert a location into map coordinates:

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Use a geo projection to produce a map of the world:

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Default parameters used for one of the UTM zones:

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Introduced in 2008
(7.0)
| Updated in 2014
(10.0)