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GeoProjectionData

GeoProjectionData
gives the value of the specified property for the specified cartographic projection.
GeoProjectionData
gives the complete options for the default form of the specified projection.
  • GeoProjectionData gives the list of all projections that refer to an ellipsoidal model.
  • GeoProjectionData gives the names of all parameters and properties available for the projection specified by .
"Centering"latitude and longitude defining the origin of the projection
"StandardParallels"standard parallel or parallels
"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
  • Typical settings for include:
longcentral meridian
{lat,long}central parallel lat and meridian long
{{lat,long},}point on center line and azimuth (Oblique Mercator)
{{lat1,long1},{lat2,long2}}two points on center line (Oblique Mercator)
{long1,long2}central meridian and true-to-scale meridian (IMW polyconic)
  • 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 include:
"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
"EckertIV"Eckert IV
"EckertVI"Eckert VI
"Equirectangular"simple cylindrical equirectangular
"Gnomonic"gnomonic
"IMWPolyconic"IMW polyconic
"LambertAzimuthal"Lambert azimuthal equal-area
"LambertConformalConic"Lambert conformal conic
"LambertConformalConicNGS"Lambert conformal conic (NGS)
"LambertCylindrical"Lambert cylindrical
"Mercator"Mercator
"MillerCylindrical"Miller cylindrical
"Mollweide"Mollweide
"ObliqueMercator"oblique Mercator
"ObliqueMercatorNGS"oblique Mercator (NGS)
"Orthographic"orthographic
"Stereographic"stereographic
"TransverseMercator"transverse Mercator
"Polyconic"polyconic
"Robinson"Robinson
"Sinusoidal"sinusoidal
"VanDerGrinten"van der Grinten
"WinkelTripel"Winkel tripel
  • GeoProjectionData supports all projections used by the U.S. State Plane Coordinate Systems from 1927 to 1983.
  • For any state plane or UTM zone, GeoProjectionData gives the name and the standard parameters of the projection used.
List of all available cartographic projections:
List of all spherical projections:
List of all ellipsoidal projections:
Default parameters used for the spherical Mercator projection, referenced to a unit sphere:
Default parameters used for the ellipsoidal oblique Mercator projection:
List of all available cartographic projections:
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List of all spherical projections:
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List of all ellipsoidal projections:
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Default parameters used for the spherical Mercator projection, referenced to a unit sphere:
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Default parameters used for the ellipsoidal oblique Mercator projection:
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In the U.S. State Plane Coordinate System, the transverse Mercator projection is used for states that are long in the north-south direction:
A Lambert conformal conic projection is used for states that extend in the east-west direction:
The oblique Mercator projection is used for Alaska:
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