Class

SpatialReference

Declaration

public SpatialReference()

Half of PI.

Declaration

public const double HalfPI = 0.159154943091895

Field Value

Degrees of one radiant.

Declaration

public const double RadiansToDegrees = 57.2957795130823

Field Value

Gets or sets the measurement units used to define the angles of a spheroid or ellipse associated with a specific datum. The datum is WGS 1984 and the unit of measurement is a degree.

Declaration

public double AngularUnitOfMeasurement { get; set; }

Property Value

Implements ISpatialReference.AngularUnitOfMeasurement

Gets or sets the authority body that defines the standards for the spatial reference parameters. The Spatial Reference is WGS 1984 and the authority is EPSG:4326.

Declaration

public string Authority { get; set; }

Property Value

Implements ISpatialReference.Authority

Gets or sets the line of longitude at the center of a map projection generally used as the basis for constructing the projection.

Declaration

public double CentralMeridian { get; set; }

Property Value

Implements ISpatialReference.CentralMeridian

Gets or sets the horizontal datum, which corresponds to the procedure used to measure positions on the surface of the Earth.

Declaration

public string Datum { get; set; }

Property Value

Implements ISpatialReference.Datum

Gets or sets the horizontal datum, which corresponds to the procedure used to measure positions on the surface of the Earth.

Declaration

public string DatumAuthority { get; set; }

Property Value

Implements ISpatialReference.DatumAuthority

Gets or sets value added to all "x" values in the rectangular coordinate for a map projection. This value frequently is assigned to eliminate negative numbers. Expressed in the unit of measure identified in Planar Coordinate Units.

Declaration

public double FalseEasting { get; set; }

Property Value

Implements ISpatialReference.FalseEasting

Gets or sets value added to all "y" values in the rectangular coordinates for a map projection. This value frequently is assigned to eliminate negative numbers. Expressed in the unit of measure identified in Planar Coordinate Units.

Declaration

public double FalseNorthing { get; set; }

Property Value

Implements ISpatialReference.FalseNorthing

Gets or sets coordinate system based on latitude and longitude. Some geographic coordinate systems are Latitude/Longitude, and some are Longitude/Latitude. You can find out which this is by examining the axes. You should also check the angular units, since not all geographic coordinate systems use degrees.

Declaration

public string GeoGcs { get; set; }

Property Value

Implements ISpatialReference.GeoGcs

Gets or sets the latitude chosen as the origin of rectangular coordinate for a map projection.

Declaration

public double LatitudeOfOrigin { get; set; }

Property Value

Implements ISpatialReference.LatitudeOfOrigin

The maximum Latitude this tile source supports.

Declaration

public double MaxLatitude { get; set; }

Property Value

Implements ISpatialReference.MaxLatitude

The maximum Longitude this tile source supports.

Declaration

public double MaxLongitude { get; set; }

Property Value

Implements ISpatialReference.MaxLongitude

The minimum Latitude this tile source supports.

Declaration

public double MinLatitude { get; set; }

Property Value

Implements ISpatialReference.MinLatitude

The minimum Longitude this tile source supports.

Declaration

public double MinLongitude { get; set; }

Property Value

Implements ISpatialReference.MinLongitude

Gets or sets logical X offset to centre of earth.

Declaration

public double OffsetX { get; set; }

Property Value

Gets or sets logical Y offset to centre of earth.

Declaration

public double OffsetY { get; set; }

Property Value

Gets or sets the meridian used to take longitude measurements from. The units of the longitude must be inferred from the context.

Declaration

public double Primem { get; set; }

Property Value

Implements ISpatialReference.Primem

Gets or sets the meridian used to take longitude measurements from. The units of the longitude must be inferred from the context.

Declaration

public string PrimemAuthority { get; set; }

Property Value

Implements ISpatialReference.PrimemAuthority

Gets or sets a projection from geographic coordinates to projected coordinates.

Declaration

public string ProjectionAuthority { get; set; }

Property Value

Implements ISpatialReference.ProjectionAuthority

Gets or sets the real world coordinate scale at a given longitude.

Declaration

public double ScaleX { get; set; }

Property Value

Gets or sets the real world coordinate scale at a given latitude.

Declaration

public double ScaleY { get; set; }

Property Value

Gets or sets a spheroid, which is an approximation of the Earth's surface as a squashed sphere.

Declaration

public string SpheroidAuthority { get; set; }

Property Value

Implements ISpatialReference.SpheroidAuthority

Gets or sets a spheroid, which is an approximation of the Earth's surface as a squashed sphere.

Declaration

public double SpheroidFlattening { get; set; }

Property Value

Implements ISpatialReference.SpheroidFlattening

Gets or sets a spheroid, which is an approximation of the Earth's surface as a squashed sphere.

Declaration

public double SpheroidRadius { get; set; }

Property Value

Implements ISpatialReference.SpheroidRadius

Gets or sets the line of constant latitude at which the surface of the Earth and the plane or developable surface intersect.

Declaration

public double StandardParallel { get; set; }

Property Value

Implements ISpatialReference.StandardParallel

Gets or sets the authority body that defines the unit of measurement i.e. European Petroleum Survey Group (EPSG). The unit of measurement is usually degrees and the authority for the datum the map uses, WGS 1984 is EPSG:4326.

Declaration

public string UnitAuthority { get; set; }

Property Value

Implements ISpatialReference.UnitAuthority

Converts a geographical coordinate (Longitude, Latitude) to a logical Point (0->1).

Declaration

public virtual Point GeographicToLogical(Location geographicPoint)

Parameters

Returns

Implements ISpatialReference.GeographicToLogical(Location)

Calculate size of rectangle from base point.

Declaration

public virtual Size GetSizeInKilometers(Location basePoint, Size size)

Parameters

Returns

Implements ISpatialReference.GetSizeInKilometers(Location, Size)

Calculate size of rectangle from base point.

Declaration

public virtual Size GetSizeInReferenceUnits(Location basePoint, Size size)

Parameters

Returns

Implements ISpatialReference.GetSizeInReferenceUnits(Location, Size)

Converts a logical Point (0->1) to a geographical coordinate (Longitude, Latitude).

Declaration

public virtual Location LogicalToGeographic(Point logicalPoint)

Parameters

Returns

Implements ISpatialReference.LogicalToGeographic(Point)