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File scoped namespaces
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ClemensFischer
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commit
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152 changed files with 11962 additions and 12115 deletions
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@ -8,211 +8,210 @@ using System.Windows.Media;
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using Avalonia;
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#endif
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namespace MapControl.Projections
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namespace MapControl.Projections;
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/// <summary>
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/// MapProjection based on ProjNet.
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/// </summary>
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public class ProjNetMapProjection : MapProjection
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{
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/// <summary>
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/// MapProjection based on ProjNet.
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/// </summary>
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public class ProjNetMapProjection : MapProjection
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public ProjNetMapProjection(ProjectedCoordinateSystem coordinateSystem)
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{
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public ProjNetMapProjection(ProjectedCoordinateSystem coordinateSystem)
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CoordinateSystem = coordinateSystem;
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}
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public ProjNetMapProjection(string coordinateSystemWkt)
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{
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CoordinateSystemWkt = coordinateSystemWkt;
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}
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/// <summary>
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/// Gets or sets an OGC Well-known text representation of a coordinate system,
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/// i.e. a PROJCS[...] or GEOGCS[...] string as used by https://epsg.io or http://spatialreference.org.
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/// Setting this property updates the CoordinateSystem property with an ICoordinateSystem created from the WKT string.
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/// </summary>
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public string CoordinateSystemWkt
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{
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get => CoordinateSystem?.WKT;
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protected set => CoordinateSystem = new CoordinateSystemFactory().CreateFromWkt(value) as ProjectedCoordinateSystem;
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}
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/// <summary>
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/// Gets or sets the ICoordinateSystem of the MapProjection.
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/// </summary>
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public ProjectedCoordinateSystem CoordinateSystem
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{
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get;
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protected set
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{
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CoordinateSystem = coordinateSystem;
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}
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field = value ??
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throw new ArgumentNullException(nameof(value));
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public ProjNetMapProjection(string coordinateSystemWkt)
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{
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CoordinateSystemWkt = coordinateSystemWkt;
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}
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var projection = field.Projection ??
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throw new ArgumentException("CoordinateSystem.Projection must not be null.", nameof(value));
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/// <summary>
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/// Gets or sets an OGC Well-known text representation of a coordinate system,
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/// i.e. a PROJCS[...] or GEOGCS[...] string as used by https://epsg.io or http://spatialreference.org.
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/// Setting this property updates the CoordinateSystem property with an ICoordinateSystem created from the WKT string.
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/// </summary>
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public string CoordinateSystemWkt
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{
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get => CoordinateSystem?.WKT;
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protected set => CoordinateSystem = new CoordinateSystemFactory().CreateFromWkt(value) as ProjectedCoordinateSystem;
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}
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IsNormalCylindrical = projection.Name.Contains("Pseudo-Mercator") ||
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projection.Name.StartsWith("Mercator");
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/// <summary>
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/// Gets or sets the ICoordinateSystem of the MapProjection.
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/// </summary>
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public ProjectedCoordinateSystem CoordinateSystem
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{
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get;
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protected set
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{
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field = value ??
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throw new ArgumentNullException(nameof(value));
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var transformFactory = new CoordinateTransformationFactory();
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var projection = field.Projection ??
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throw new ArgumentException("CoordinateSystem.Projection must not be null.", nameof(value));
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CrsId = !string.IsNullOrEmpty(field.Authority) && field.AuthorityCode > 0
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? $"{field.Authority}:{field.AuthorityCode}"
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: string.Empty;
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IsNormalCylindrical = projection.Name.Contains("Pseudo-Mercator") ||
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projection.Name.StartsWith("Mercator");
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LocationToMapTransform = transformFactory
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.CreateFromCoordinateSystems(GeographicCoordinateSystem.WGS84, field)
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.MathTransform;
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var transformFactory = new CoordinateTransformationFactory();
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MapToLocationTransform = transformFactory
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.CreateFromCoordinateSystems(field, GeographicCoordinateSystem.WGS84)
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.MathTransform;
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CrsId = !string.IsNullOrEmpty(field.Authority) && field.AuthorityCode > 0
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? $"{field.Authority}:{field.AuthorityCode}"
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: string.Empty;
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var ellipsoid = field.HorizontalDatum.Ellipsoid;
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EquatorialRadius = ellipsoid.SemiMajorAxis;
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Flattening = 1d / ellipsoid.InverseFlattening;
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LocationToMapTransform = transformFactory
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.CreateFromCoordinateSystems(GeographicCoordinateSystem.WGS84, field)
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.MathTransform;
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var parameter = projection.GetParameter("scale_factor");
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ScaleFactor = parameter != null ? parameter.Value : 1d;
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MapToLocationTransform = transformFactory
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.CreateFromCoordinateSystems(field, GeographicCoordinateSystem.WGS84)
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.MathTransform;
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parameter = projection.GetParameter("central_meridian");
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CentralMeridian = parameter != null ? parameter.Value : 0d;
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var ellipsoid = field.HorizontalDatum.Ellipsoid;
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EquatorialRadius = ellipsoid.SemiMajorAxis;
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Flattening = 1d / ellipsoid.InverseFlattening;
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parameter = projection.GetParameter("latitude_of_origin");
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LatitudeOfOrigin = parameter != null ? parameter.Value : 0d;
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var parameter = projection.GetParameter("scale_factor");
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ScaleFactor = parameter != null ? parameter.Value : 1d;
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parameter = projection.GetParameter("false_easting");
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FalseEasting = parameter != null ? parameter.Value : 0d;
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parameter = projection.GetParameter("central_meridian");
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CentralMeridian = parameter != null ? parameter.Value : 0d;
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parameter = projection.GetParameter("latitude_of_origin");
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LatitudeOfOrigin = parameter != null ? parameter.Value : 0d;
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parameter = projection.GetParameter("false_easting");
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FalseEasting = parameter != null ? parameter.Value : 0d;
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parameter = projection.GetParameter("false_northing");
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FalseNorthing = parameter != null ? parameter.Value : 0d;
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}
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}
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public MathTransform LocationToMapTransform { get; private set; }
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public MathTransform MapToLocationTransform { get; private set; }
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public override Point LocationToMap(double latitude, double longitude)
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{
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if (LocationToMapTransform == null)
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{
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throw new InvalidOperationException("The CoordinateSystem property is not set.");
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}
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double x, y;
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try
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{
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(x, y) = LocationToMapTransform.Transform(longitude, latitude);
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}
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catch (ArgumentException)
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{
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x = 0d;
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y = latitude >= 0d ? double.PositiveInfinity : double.NegativeInfinity;
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}
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return new Point(x, y);
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}
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public override Location MapToLocation(double x, double y)
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{
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if (MapToLocationTransform == null)
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{
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throw new InvalidOperationException("The CoordinateSystem property is not set.");
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}
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(var lon, var lat) = MapToLocationTransform.Transform(x, y);
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return new Location(lat, lon);
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}
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public override double GridConvergence(double latitude, double longitude)
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{
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var projection = CoordinateSystem.Projection.Name;
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if (projection.StartsWith("Transverse_Mercator"))
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{
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return TransverseMercatorGridConvergence(latitude, longitude);
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}
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if (projection.StartsWith("Polar_Stereographic"))
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{
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return PolarStereographicGridConvergence(longitude);
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}
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return base.GridConvergence(latitude, longitude);
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}
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public override Matrix RelativeTransform(double latitude, double longitude)
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{
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var projection = CoordinateSystem.Projection.Name;
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if (projection.Contains("Pseudo-Mercator"))
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{
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return WebMercatorRelativeTransform(latitude);
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}
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if (projection.StartsWith("Mercator"))
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{
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return WorldMercatorRelativeTransform(latitude);
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}
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if (projection.StartsWith("Polar_Stereographic"))
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{
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return PolarStereographicRelativeTransform(latitude, longitude);
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}
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return base.RelativeTransform(latitude, longitude);
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}
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protected static Matrix WebMercatorRelativeTransform(double latitude)
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{
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var k = 1d / Math.Cos(latitude * Math.PI / 180d); // p.44 (7-3)
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return new Matrix(k, 0d, 0d, k, 0d, 0d);
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}
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protected Matrix WorldMercatorRelativeTransform(double latitude)
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{
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var e2 = (2d - Flattening) * Flattening;
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var phi = latitude * Math.PI / 180d;
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var sinPhi = Math.Sin(phi);
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var k = Math.Sqrt(1d - e2 * sinPhi * sinPhi) / Math.Cos(phi); // p.44 (7-8)
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return new Matrix(k, 0d, 0d, k, 0d, 0d);
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}
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protected double TransverseMercatorGridConvergence(double latitude, double longitude)
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{
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return 180d / Math.PI * Math.Atan(
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Math.Tan((longitude - CentralMeridian) * Math.PI / 180d) *
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Math.Sin(latitude * Math.PI / 180d));
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}
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protected double PolarStereographicGridConvergence(double longitude)
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{
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return Math.Sign(LatitudeOfOrigin) * (longitude - CentralMeridian);
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}
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protected Matrix PolarStereographicRelativeTransform(double latitude, double longitude)
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{
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var sign = Math.Sign(LatitudeOfOrigin);
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var phi = sign * latitude * Math.PI / 180d;
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var e = Math.Sqrt((2d - Flattening) * Flattening);
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var eSinPhi = e * Math.Sin(phi);
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var t = Math.Tan(Math.PI / 4d - phi / 2d)
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/ Math.Pow((1d - eSinPhi) / (1d + eSinPhi), e / 2d); // p.161 (15-9)
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// r == ρ/a
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var r = 2d * ScaleFactor * t / Math.Sqrt(Math.Pow(1d + e, 1d + e) * Math.Pow(1d - e, 1d - e)); // p.161 (21-33)
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var m = Math.Cos(phi) / Math.Sqrt(1d - eSinPhi * eSinPhi); // p.160 (14-15)
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var k = r / m; // p.161 (21-32)
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var transform = new Matrix(k, 0d, 0d, k, 0d, 0d);
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transform.Rotate(-sign * (longitude - CentralMeridian));
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return transform;
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parameter = projection.GetParameter("false_northing");
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FalseNorthing = parameter != null ? parameter.Value : 0d;
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}
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}
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public MathTransform LocationToMapTransform { get; private set; }
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public MathTransform MapToLocationTransform { get; private set; }
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public override Point LocationToMap(double latitude, double longitude)
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{
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if (LocationToMapTransform == null)
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{
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throw new InvalidOperationException("The CoordinateSystem property is not set.");
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}
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double x, y;
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try
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{
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(x, y) = LocationToMapTransform.Transform(longitude, latitude);
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}
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catch (ArgumentException)
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{
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x = 0d;
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y = latitude >= 0d ? double.PositiveInfinity : double.NegativeInfinity;
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}
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return new Point(x, y);
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}
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public override Location MapToLocation(double x, double y)
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{
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if (MapToLocationTransform == null)
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{
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throw new InvalidOperationException("The CoordinateSystem property is not set.");
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}
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(var lon, var lat) = MapToLocationTransform.Transform(x, y);
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return new Location(lat, lon);
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}
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public override double GridConvergence(double latitude, double longitude)
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{
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var projection = CoordinateSystem.Projection.Name;
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if (projection.StartsWith("Transverse_Mercator"))
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{
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return TransverseMercatorGridConvergence(latitude, longitude);
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}
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if (projection.StartsWith("Polar_Stereographic"))
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{
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return PolarStereographicGridConvergence(longitude);
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}
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return base.GridConvergence(latitude, longitude);
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}
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public override Matrix RelativeTransform(double latitude, double longitude)
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{
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var projection = CoordinateSystem.Projection.Name;
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if (projection.Contains("Pseudo-Mercator"))
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{
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return WebMercatorRelativeTransform(latitude);
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}
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if (projection.StartsWith("Mercator"))
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{
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return WorldMercatorRelativeTransform(latitude);
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}
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if (projection.StartsWith("Polar_Stereographic"))
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{
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return PolarStereographicRelativeTransform(latitude, longitude);
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}
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return base.RelativeTransform(latitude, longitude);
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}
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protected static Matrix WebMercatorRelativeTransform(double latitude)
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{
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var k = 1d / Math.Cos(latitude * Math.PI / 180d); // p.44 (7-3)
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return new Matrix(k, 0d, 0d, k, 0d, 0d);
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}
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protected Matrix WorldMercatorRelativeTransform(double latitude)
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{
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var e2 = (2d - Flattening) * Flattening;
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var phi = latitude * Math.PI / 180d;
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var sinPhi = Math.Sin(phi);
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var k = Math.Sqrt(1d - e2 * sinPhi * sinPhi) / Math.Cos(phi); // p.44 (7-8)
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return new Matrix(k, 0d, 0d, k, 0d, 0d);
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}
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protected double TransverseMercatorGridConvergence(double latitude, double longitude)
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{
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return 180d / Math.PI * Math.Atan(
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Math.Tan((longitude - CentralMeridian) * Math.PI / 180d) *
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Math.Sin(latitude * Math.PI / 180d));
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}
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protected double PolarStereographicGridConvergence(double longitude)
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{
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return Math.Sign(LatitudeOfOrigin) * (longitude - CentralMeridian);
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}
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protected Matrix PolarStereographicRelativeTransform(double latitude, double longitude)
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{
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var sign = Math.Sign(LatitudeOfOrigin);
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var phi = sign * latitude * Math.PI / 180d;
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var e = Math.Sqrt((2d - Flattening) * Flattening);
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var eSinPhi = e * Math.Sin(phi);
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var t = Math.Tan(Math.PI / 4d - phi / 2d)
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/ Math.Pow((1d - eSinPhi) / (1d + eSinPhi), e / 2d); // p.161 (15-9)
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// r == ρ/a
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var r = 2d * ScaleFactor * t / Math.Sqrt(Math.Pow(1d + e, 1d + e) * Math.Pow(1d - e, 1d - e)); // p.161 (21-33)
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var m = Math.Cos(phi) / Math.Sqrt(1d - eSinPhi * eSinPhi); // p.160 (14-15)
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var k = r / m; // p.161 (21-32)
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var transform = new Matrix(k, 0d, 0d, k, 0d, 0d);
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transform.Rotate(-sign * (longitude - CentralMeridian));
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return transform;
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}
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}
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