public static Coordinate[] Convert(COORSYSTEM from, COORSYSTEM to, Coordinate[] coor)
{
Coordinate[] tmp = new Coordinate[coor.Length];
for (int i = 0; i < coor.Length; i++)
{
tmp[i] = Convert(from, to, coor[i]);
}
return(tmp);
}
public static IMultiPolygon Convert(COORSYSTEM from, COORSYSTEM to, IMultiPolygon multipoly)
{
IPolygon [] polys = new Polygon [multipoly.Count];
for (int i = 0; i < multipoly.Count; i++)
{
polys[i] = Convert(from, to, multipoly[i] as IPolygon);
}
return(GeometryFactory.Default.CreateMultiPolygon(polys));
}
public static IPolygon Convert(COORSYSTEM from, COORSYSTEM to, IPolygon poly)
{
var shell = GeometryFactory.Default.CreateLinearRing(Convert(from, to, poly.Shell.Coordinates));
ILinearRing[] holes = new LinearRing[poly.Holes.Length];
for (int i = 0; i < poly.Holes.Length; i++)
{
holes[i] = GeometryFactory.Default.CreateLinearRing(Convert(from, to, poly.Holes[i].Coordinates));
}
return(GeometryFactory.Default.CreatePolygon(shell, holes));
}
private static ICoordinateTransformation GetTransformation(COORSYSTEM from, COORSYSTEM to)
{
CoordinateSystems cs = new CoordinateSystems();
if (from == COORSYSTEM.NAD83 && to == COORSYSTEM.WGS84)
{
return(cs.FootToDeg);
}
else if (from == COORSYSTEM.WGS84 && to == COORSYSTEM.NAD83)
{
return(cs.DegToFoot);
}
return(null);
}
public static IGeometry Convert(COORSYSTEM from, COORSYSTEM to, IGeometry geometry)
{
IGeometry geo = null;
switch (geometry.GeometryType)
{
case "Polygon":
var poly = geometry as Polygon;
geo = Convert(from, to, poly);
break;
case "MultiPolygon":
var multipoly = geometry as MultiPolygon;
geo = Convert(from, to, multipoly);
break;
}
return(geo);
}
public static double[] Convert(COORSYSTEM from, COORSYSTEM to, double lat, double lng)
{
ICoordinateTransformation cs = GetTransformation(from, to);
return(cs.MathTransform.Transform(new double[] { lng, lat }));
}
public static Coordinate Convert(COORSYSTEM from, COORSYSTEM to, Coordinate coor)
{
ICoordinateTransformation cs = GetTransformation(from, to);
return(cs.MathTransform.Transform(coor));
}
