/// <summary>
/// Creates an instance of a Geographic Coordinate System
/// </summary>
/// <param name="angularUnit">Angular units</param>
/// <param name="horizontalDatum">Horizontal datum</param>
/// <param name="primeMeridian">Prime meridian</param>
/// <param name="axisInfo">Axis info</param>
/// <param name="name">Name</param>
/// <param name="authority">Authority name</param>
/// <param name="authorityCode">Authority-specific identification code.</param>
/// <param name="alias">Alias</param>
/// <param name="abbreviation">Abbreviation</param>
/// <param name="remarks">Provider-supplied remarks</param>
internal GeographicCoordinateSystem(AngularUnit angularUnit, HorizontalDatum horizontalDatum, PrimeMeridian primeMeridian, List <AxisInfo> axisInfo, string name, string authority, long authorityCode, string alias, string abbreviation, string remarks)
:
base(horizontalDatum, axisInfo, name, authority, authorityCode, alias, abbreviation, remarks)
{
AngularUnit = angularUnit;
PrimeMeridian = primeMeridian;
}
/// <summary>
/// Checks whether the values of this instance is equal to the values of another instance.
/// Only parameters used for coordinate system are used for comparison.
/// Name, abbreviation, authority, alias and remarks are ignored in the comparison.
/// </summary>
/// <param name="obj"></param>
/// <returns>True if equal</returns>
public override bool EqualParams(object obj)
{
if (!(obj is PrimeMeridian))
{
return(false);
}
PrimeMeridian prime = obj as PrimeMeridian;
return(prime.AngularUnit.EqualParams(this.AngularUnit) && prime.Longitude == this.Longitude);
}
internal GeocentricCoordinateSystem(HorizontalDatum datum, LinearUnit linearUnit, PrimeMeridian primeMeridian, List <AxisInfo> axisInfo,
string name, string authority, long code, string alias,
string remarks, string abbreviation)
: base(name, authority, code, alias, abbreviation, remarks)
{
HorizontalDatum = datum;
LinearUnit = linearUnit;
PrimeMeridian = primeMeridian;
if (axisInfo.Count != 3)
{
throw new ArgumentException("Axis info should contain three axes for geocentric coordinate systems");
}
base.AxisInfo = axisInfo;
}
/// <summary>
///
/// </summary>
/// <param name="tokenizer"></param>
/// <returns></returns>
private static IPrimeMeridian ReadPrimeMeridian(WktStreamTokenizer tokenizer)
{
//PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]]
tokenizer.ReadToken("[");
string name = tokenizer.ReadDoubleQuotedWord();
tokenizer.ReadToken(",");
tokenizer.NextToken();
double longitude = tokenizer.GetNumericValue();
tokenizer.NextToken();
string authority = String.Empty;
long authorityCode = -1;
if (tokenizer.GetStringValue() == ",")
{
tokenizer.ReadAuthority(ref authority, ref authorityCode);
tokenizer.ReadToken("]");
}
// make an assumption about the Angular units - degrees.
IPrimeMeridian primeMeridian = new PrimeMeridian(longitude, AngularUnit.Degrees, name, authority, authorityCode, String.Empty, String.Empty, String.Empty);
return primeMeridian;
}
/*
* /// <summary>
* /// Creates a <see cref="ILocalDatum"/>.
* /// </summary>
* /// <param name="name">Name of datum</param>
* /// <param name="datumType">Datum type</param>
* /// <returns></returns>
* public ILocalDatum CreateLocalDatum(string name, DatumType datumType)
* {
* throw new NotImplementedException();
* }
*/
/*
* /// <summary>
* /// Creates a <see cref="IVerticalDatum"/> from an enumerated type value.
* /// </summary>
* /// <param name="name">Name of datum</param>
* /// <param name="datumType">Type of datum</param>
* /// <returns>Vertical datum</returns>
* public IVerticalDatum CreateVerticalDatum(string name, DatumType datumType)
* {
* throw new NotImplementedException();
* }
*/
/*
* /// <summary>
* /// Creates a <see cref="IVerticalCoordinateSystem"/> from a <see cref="IVerticalDatum">datum</see> and <see cref="LinearUnit">linear units</see>.
* /// </summary>
* /// <param name="name">Name of vertical coordinate system</param>
* /// <param name="datum">Vertical datum</param>
* /// <param name="verticalUnit">Unit</param>
* /// <param name="axis">Axis info</param>
* /// <returns>Vertical coordinate system</returns>
* public IVerticalCoordinateSystem CreateVerticalCoordinateSystem(string name, IVerticalDatum datum, ILinearUnit verticalUnit, AxisInfo axis)
* {
* throw new NotImplementedException();
* }
*/
/// <summary>
/// Creates a <see cref="CreateGeocentricCoordinateSystem"/> from a <see cref="HorizontalDatum">datum</see>,
/// <see cref="LinearUnit">linear unit</see> and <see cref="PrimeMeridian"/>.
/// </summary>
/// <param name="name">Name of geocentric coordinate system</param>
/// <param name="datum">Horizontal datum</param>
/// <param name="linearUnit">Linear unit</param>
/// <param name="primeMeridian">Prime meridian</param>
/// <returns>Geocentric Coordinate System</returns>
public GeocentricCoordinateSystem CreateGeocentricCoordinateSystem(string name, HorizontalDatum datum, LinearUnit linearUnit, PrimeMeridian primeMeridian)
{
if (string.IsNullOrWhiteSpace(name))
{
throw new ArgumentException("Invalid name");
}
var info = new List <AxisInfo>(3);
info.Add(new AxisInfo("X", AxisOrientationEnum.Other));
info.Add(new AxisInfo("Y", AxisOrientationEnum.Other));
info.Add(new AxisInfo("Z", AxisOrientationEnum.Other));
return(new GeocentricCoordinateSystem(datum, linearUnit, primeMeridian, info, name, string.Empty, -1, string.Empty, string.Empty, string.Empty));
}
/// <summary>
/// Creates a <see cref="GeographicCoordinateSystem"/>, which could be Lat/Lon or Lon/Lat.
/// </summary>
/// <param name="name">Name of geographical coordinate system</param>
/// <param name="angularUnit">Angular units</param>
/// <param name="datum">Horizontal datum</param>
/// <param name="primeMeridian">Prime meridian</param>
/// <param name="axis0">First axis</param>
/// <param name="axis1">Second axis</param>
/// <returns>Geographic coordinate system</returns>
public GeographicCoordinateSystem CreateGeographicCoordinateSystem(string name, AngularUnit angularUnit, HorizontalDatum datum, PrimeMeridian primeMeridian, AxisInfo axis0, AxisInfo axis1)
{
if (string.IsNullOrWhiteSpace(name))
{
throw new ArgumentException("Invalid name");
}
var info = new List <AxisInfo>(2);
info.Add(axis0);
info.Add(axis1);
return(new GeographicCoordinateSystem(angularUnit, datum, primeMeridian, info, name, string.Empty, -1, string.Empty, string.Empty, string.Empty));
}
