/// <summary>
/// Returns the inverse of this conversion.
/// </summary>
/// <returns>IMathTransform that is the reverse of the current conversion.</returns>
public override MathTransform Inverse()
{
if (_inverse == null)
{
_inverse = new GeocentricTransform(this._parameters, !_isInverse);
}
return(_inverse);
}
/// <summary>
/// Creates the inverse transform of this object.
/// </summary>
/// <returns></returns>
/// <remarks>This method may fail if the transform is not one to one. However, all cartographic projections should succeed.</remarks>
public override MathTransform Inverse()
{
if (_inverse == null)
{
_inverse = new DatumTransform(_toWgs94, !_isInverse);
}
return(_inverse);
}
/// <summary>
/// Returns the inverse of this conversion.
/// </summary>
/// <returns>IMathTransform that is the reverse of the current conversion.</returns>
public override MathTransform Inverse()
{
if (_inverse == null)
{
_inverse = Clone();
_inverse.Invert();
}
return(_inverse);
}
// ReSharper restore InconsistentNaming
/// <summary>
/// Creates an instance of this class
/// </summary>
/// <param name="parameters">An enumeration of projection parameters</param>
/// <param name="inverse">Indicator if this projection is inverse</param>
protected MapProjection(IEnumerable<ProjectionParameter> parameters, MapProjection inverse)
: this(parameters)
{
_inverse = inverse;
if (_inverse != null)
{
inverse._inverse = this;
_isInverse = !inverse._isInverse;
}
}
/// <summary>
/// Transforms a <see cref="NetTopologySuite.Geometries.MultiPolygon"/>.
/// </summary>
/// <param name="polys">MultiPolygon to transform</param>
/// <param name="transform">MathTransform</param>
/// <param name="targetFactory">The factory to create the target geometry</param>
/// <returns>Transformed MultiPolygon</returns>
public static MultiPolygon TransformMultiPolygon(MultiPolygon polys, MathTransform transform, GeometryFactory targetFactory)
{
var polyList = new Polygon[polys.NumGeometries];
for (var i = 0; i < polys.NumGeometries; i++)
{
var poly = (Polygon)polys[i];
polyList[i] = TransformPolygon(poly, transform, targetFactory);
}
return(targetFactory.CreateMultiPolygon(polyList));
}
/// <summary>
/// Transforms a <see cref="NetTopologySuite.Geometries.LinearRing"/>.
/// </summary>
/// <param name="r">LinearRing to transform</param>
/// <param name="transform">MathTransform</param>
/// <param name="targetFactory">The factory to create the target geometry</param>
/// <returns>Transformed LinearRing</returns>
public static LinearRing TransformLinearRing(LinearRing r, MathTransform transform, GeometryFactory targetFactory)
{
try
{
return(targetFactory.CreateLinearRing(TransformCoordinates(r.Coordinates, transform)));
}
catch
{
return(null);
}
}
/// <summary>
/// Transforms a <see cref="NetTopologySuite.Geometries.Point"/>.
/// </summary>
/// <param name="p">Point to transform</param>
/// <param name="transform">MathTransform</param>
/// <param name="targetFactory">The factory to create the target geometry</param>
/// <returns>Transformed Point</returns>
public static Point TransformPoint(Point p, MathTransform transform, GeometryFactory targetFactory)
{
try
{
return(targetFactory.CreatePoint(TransformCoordinate(p.Coordinate, transform)));
}
catch
{
return(null);
}
}
/// <summary>
/// Function to transform <paramref name="c"/> using <paramref name="transform"/>
/// </summary>
/// <param name="c">The array of coordinates</param>
/// <param name="transform">The transformation</param>
/// <returns>An array of transformed coordinates</returns>
private static Coordinate[] TransformCoordinates(Coordinate[] c, MathTransform transform)
{
var res = new Coordinate[c.Length];
for (var i = 0; i < c.Length; i++)
{
var ordinates = transform.Transform(c[i].ToDoubleArray());
res[i] = new Coordinate(ordinates[0], ordinates[1]);
}
return(res);
}
/// <summary>
/// Returns the inverse of this affine transformation.
/// </summary>
/// <returns>IMathTransform that is the reverse of the current affine transformation.</returns>
public override MathTransform Inverse()
{
if (_inverse == null)
{
//find the inverse transformation matrix - use cloned matrix array
//remarks about dimensionality: if input dimension is M, and output dimension is N, then the matrix will have size [N+1][M+1].
double[,] invMatrix = InvertMatrix((double[, ])_transformMatrix.Clone());
_inverse = new AffineTransform(invMatrix);
}
return(_inverse);
}
/// <summary>
/// Initializes an instance of a CoordinateTransformation
/// </summary>
/// <param name="sourceCS">Source coordinate system</param>
/// <param name="targetCS">Target coordinate system</param>
/// <param name="transformType">Transformation type</param>
/// <param name="mathTransform">Math transform</param>
/// <param name="name">Name of transform</param>
/// <param name="authority">Authority</param>
/// <param name="authorityCode">Authority code</param>
/// <param name="areaOfUse">Area of use</param>
/// <param name="remarks">Remarks</param>
internal CoordinateTransformation(CoordinateSystem sourceCS, CoordinateSystem targetCS, TransformType transformType, MathTransform mathTransform,
string name, string authority, long authorityCode, string areaOfUse, string remarks)
{
TargetCS = targetCS;
SourceCS = sourceCS;
TransformType = transformType;
MathTransform = mathTransform;
Name = name;
Authority = authority;
AuthorityCode = authorityCode;
AreaOfUse = areaOfUse;
Remarks = remarks;
}
/// <summary>
/// Transforms a <see cref="NetTopologySuite.Geometries.Polygon"/>.
/// </summary>
/// <param name="p">Polygon to transform</param>
/// <param name="transform">MathTransform</param>
/// <param name="targetFactory">The factory to create the target geometry</param>
/// <returns>Transformed Polygon</returns>
public static Polygon TransformPolygon(Polygon p, MathTransform transform, GeometryFactory targetFactory)
{
var shell = TransformLinearRing((LinearRing)p.ExteriorRing, transform, targetFactory);
LinearRing[] holes = null;
var holesCount = p.NumInteriorRings;
if (holesCount > 0)
{
holes = new LinearRing[holesCount];
for (var i = 0; i < holesCount; i++)
{
holes[i] = TransformLinearRing((LinearRing)p.GetInteriorRingN(i), transform, targetFactory);
}
}
return(targetFactory.CreatePolygon(shell, holes));
}
/// <summary>
/// Transforms a <see cref="Envelope"/>.
/// </summary>
/// <param name="box">BoundingBox to transform</param>
/// <param name="transform">Math Transform</param>
/// <returns>Transformed object</returns>
public static Envelope TransformBox(Envelope box, MathTransform transform)
{
if (box == null)
{
return(null);
}
var corners = new [] {
transform.Transform(box.MinX, box.MinY),
transform.Transform(box.MinX, box.MaxY),
transform.Transform(box.MaxX, box.MinY),
transform.Transform(box.MaxX, box.MaxY)
};
var result = new Envelope(new Coordinate(corners[0].x, corners[0].y));
for (var i = 1; i < 4; i++)
{
result.ExpandToInclude(new Coordinate(corners[i].x, corners[i].y));
}
return(result);
}
/// <summary>
/// Transforms a <see cref="NetTopologySuite.Geometries.Geometry"/>.
/// </summary>
/// <param name="g">Geometry to transform</param>
/// <param name="transform">MathTransform</param>
/// <param name="targetFactory">The factory to create the target geometry</param>
/// <returns>Transformed Geometry</returns>
public static Geometry TransformGeometry(Geometry g, MathTransform transform, GeometryFactory targetFactory)
{
if (g == null)
{
return(null);
}
if (g is Point)
{
return(TransformPoint(g as Point, transform, targetFactory));
}
if (g is LineString)
{
return(TransformLineString(g as LineString, transform, targetFactory));
}
if (g is Polygon)
{
return(TransformPolygon(g as Polygon, transform, targetFactory));
}
if (g is MultiPoint)
{
return(TransformMultiPoint(g as MultiPoint, transform, targetFactory));
}
if (g is MultiLineString)
{
return(TransformMultiLineString(g as MultiLineString, transform, targetFactory));
}
if (g is MultiPolygon)
{
return(TransformMultiPolygon(g as MultiPolygon, transform, targetFactory));
}
if (g is GeometryCollection)
{
return(TransformGeometryCollection(g as GeometryCollection, transform, targetFactory));
}
throw new ArgumentException("Could not transform geometry type '" + g.GetType() + "'");
}
/// <summary>
/// Function to transform a <paramref name="c"/> using <paramref name="transform"/>
/// </summary>
/// <param name="c">The coordinate</param>
/// <param name="transform">The transformation</param>
/// <returns>A transformed coordinate</returns>
public static Coordinate TransformCoordinate(Coordinate c, MathTransform transform)
{
var ordinates = transform.Transform(c.ToDoubleArray());
return(new Coordinate(ordinates[0], ordinates[1]));
}
/// <summary>
/// Returns the inverse of this conversion.
/// </summary>
/// <returns>IMathTransform that is the reverse of the current conversion.</returns>
public override IMathTransform Inverse()
{
if (_inverse == null)
_inverse = new GeocentricTransform(this._Parameters, !_isInverse);
return _inverse;
}
/// <summary>
/// Creates an instance of CoordinateTransformation as an anonymous transformation without neither autohority nor code defined.
/// </summary>
/// <param name="sourceCS">Source coordinate system</param>
/// <param name="targetCS">Target coordinate system</param>
/// <param name="transformType">Transformation type</param>
/// <param name="mathTransform">Math transform</param>
private static CoordinateTransformation CreateTransform(CoordinateSystem sourceCS, CoordinateSystem targetCS, TransformType transformType, MathTransform mathTransform)
{
return(new CoordinateTransformation(sourceCS, targetCS, transformType, mathTransform, string.Empty, string.Empty, -1, string.Empty, string.Empty));
}
/// <summary>
/// Transforms a <see cref="NetTopologySuite.Geometries.GeometryCollection"/>.
/// </summary>
/// <param name="geoms">GeometryCollection to transform</param>
/// <param name="transform">MathTransform</param>
/// <param name="targetFactory">The factory to create the target geometry</param>
/// <returns>Transformed GeometryCollection</returns>
public static GeometryCollection TransformGeometryCollection(GeometryCollection geoms, MathTransform transform, GeometryFactory targetFactory)
{
var geomList = new Geometry[geoms.NumGeometries];
for (var i = 0; i < geoms.NumGeometries; i++)
{
geomList[i] = TransformGeometry(geoms[i], transform, targetFactory);
}
return(targetFactory.CreateGeometryCollection(geomList));
}
/// <summary>
/// Transforms a <see cref="NetTopologySuite.Geometries.MultiLineString"/>.
/// </summary>
/// <param name="lines">MultiLineString to transform</param>
/// <param name="transform">MathTransform</param>
/// <param name="targetFactory">The factory to create the target geometry</param>
/// <returns>Transformed MultiLineString</returns>
public static MultiLineString TransformMultiLineString(MultiLineString lines, MathTransform transform, GeometryFactory targetFactory)
{
var lineList = new LineString[lines.NumGeometries];
for (var i = 0; i < lines.NumGeometries; i++)
{
var line = (LineString)lines[i];
lineList[i] = TransformLineString(line, transform, targetFactory);
}
return(targetFactory.CreateMultiLineString(lineList));
}
/// <summary>
/// Transforms a <see cref="NetTopologySuite.Geometries.MultiPoint"/>.
/// </summary>
/// <param name="points">MultiPoint to transform</param>
/// <param name="transform">MathTransform</param>
/// <param name="targetFactory">The factory to create the target geometry</param>
/// <returns>Transformed MultiPoint</returns>
public static MultiPoint TransformMultiPoint(MultiPoint points, MathTransform transform, GeometryFactory targetFactory)
{
return(targetFactory.CreateMultiPointFromCoords(TransformCoordinates(points.Coordinates, transform)));
}