static Proj4Datum()
{
DefaultDatums = Array.AsReadOnly(new[] {
new Proj4Datum("WGS84", Proj4Spheroid.GetSpheroid("WGS84"), Helmert7Transformation.IdentityTransformation),
new Proj4Datum(
"GGRS87", Proj4Spheroid.GetSpheroid("GRS80"),
new Helmert7Transformation(new Vector3(-199.87, 74.79, 246.62))
),
new Proj4Datum(
"NAD83",
Proj4Spheroid.GetSpheroid("GRS80"),
Helmert7Transformation.IdentityTransformation,
matchExplicitly: true
),
new Proj4Datum(
"NAD27",
Proj4Spheroid.GetSpheroid("clrk66"),
null,
matchExplicitly: true
),
new Proj4Datum(
"potsdam", Proj4Spheroid.GetSpheroid("bessel"),
new Helmert7Transformation(new Vector3(606.0, 23.0, 413.0))
),
new Proj4Datum(
"carthage", Proj4Spheroid.GetSpheroid("clrk80"),
new Helmert7Transformation(new Vector3(-263.0, 6.0, 431.0))
),
new Proj4Datum(
"hermannskogel", Proj4Spheroid.GetSpheroid("bessel"),
new Helmert7Transformation(new Vector3(653.0, -212.0, 449.0))
),
new Proj4Datum(
"ire65", Proj4Spheroid.GetSpheroid("mod_airy"),
Helmert7Transformation.CreatePositionVectorFormat(new Vector3(482.530, -130.596, 564.557), new Vector3(-1.042, -0.214, -0.631), 8.15)
),
new Proj4Datum(
"nzgd49", Proj4Spheroid.GetSpheroid("intl"),
Helmert7Transformation.CreatePositionVectorFormat(new Vector3(59.47, -5.04, 187.44), new Vector3(0.47, -0.1, 1.024), -4.5993),
supported: false,
matchExplicitly: true
),
new Proj4Datum(
"OSGB36", Proj4Spheroid.GetSpheroid("airy"),
Helmert7Transformation.CreatePositionVectorFormat(new Vector3(446.448, -125.157, 542.060), new Vector3(0.1502, 0.2470, 0.8421), -20.4894),
supported: false
)
});
}
/// <summary>
/// Constructs a new Proj4 datum object.
/// </summary>
/// <param name="name">The Proj4 datum name.</param>
/// <param name="spheroid">The ellipse for this datum.</param>
/// <param name="toWgs84">A transformation to WGS84.</param>
/// <param name="supported">Indicates if this datum is supported by Proj4.</param>
/// <param name="matchExplicitly">Indicated is this datum must be matched explicitly by name only.</param>
private Proj4Datum(
string name,
Proj4Spheroid spheroid,
Helmert7Transformation toWgs84,
bool supported = true,
bool matchExplicitly = false
)
{
Contract.Requires(!String.IsNullOrEmpty(name));
Name = name;
_spheroid = spheroid;
_toWgs84 = toWgs84;
_supported = supported;
_matchExplicitly = matchExplicitly;
}