public void ReadProjectionFile(string resourceName)
{
string prjFile = System.IO.Path.GetTempFileName();
try
{
System.IO.File.WriteAllText(prjFile, Properties.Resources.ResourceManager.GetString(resourceName, Properties.Resources.Culture));
ProjectionInfo info = ProjectionInfo.Open(prjFile);
Assert.AreEqual("WGS_1984_Web_Mercator_Auxiliary_Sphere", info.Name);
Assert.AreEqual("GCS_WGS_1984", info.GeographicInfo.Name);
Assert.AreEqual("D_WGS_1984", info.GeographicInfo.Datum.Name);
Assert.AreEqual("WGS_1984", info.GeographicInfo.Datum.Spheroid.Name);
Assert.AreEqual(6378137, info.GeographicInfo.Datum.Spheroid.EquatorialRadius, 1e-10);
Assert.AreEqual(298.257223562997, info.GeographicInfo.Datum.Spheroid.InverseFlattening, 1e-10);
Assert.AreEqual("Greenwich", info.GeographicInfo.Meridian.Name);
Assert.AreEqual(0, info.GeographicInfo.Meridian.Longitude, 1e-10);
Assert.AreEqual("Degree", info.GeographicInfo.Unit.Name);
Assert.AreEqual(0.0174532925199433, info.GeographicInfo.Unit.Radians, 1e-10);
Assert.AreEqual("Mercator_Auxiliary_Sphere", info.Transform.Name);
Assert.AreEqual("Meter", info.Unit.Name);
Assert.AreEqual(1, info.Unit.Meters, 1e-10);
}
finally
{
System.IO.File.Delete(prjFile);
}
}
/// <summary>
/// This uses the fileName of this shapefile to read the prj file of the same name
/// and stores the result in the Projection class.
/// </summary>
public void ReadProjection()
{
string prjFile = Path.ChangeExtension(Filename, ".prj");
if (File.Exists(prjFile))
{
Projection = ProjectionInfo.Open(prjFile);
}
else
{
Projection = new ProjectionInfo();
}
}
//Sample code that will conduct a reprojection by reading in the ESRI.prj file
public static void ReadingEsriPrjFiles()
{
//declares a new ProjectionInfo for the startind and ending coordinate systems
//sets the start GCS to WGS_1984
ProjectionInfo pStart = KnownCoordinateSystems.Geographic.World.WGS1984;
ProjectionInfo pESRIEnd = ProjectionInfo.Open("C:\\Program Files\\ArcGIS\\Coordinate Systems\\Projected Coordinate Systems\\UTM\\WGS 1984\\WGS 1984 UTM Zone 1N.prj");
//declares the point(s) that will be reprojected
double[] xy = new double[2];
double[] z = new double[1];
//calls the reprojection function
Reproject.ReprojectPoints(xy, z, pStart, pESRIEnd, 0, 1);
Console.WriteLine("Points have been projected successfully");
}
/// <summary>
/// This uses the fileName of this shapefile to read the prj file of the same name
/// and stores the result in the Projection class.
/// </summary>
public void ReadProjection()
{
var prjFile = Path.ChangeExtension(Filename, ".prj");
Projection = File.Exists(prjFile) ? ProjectionInfo.Open(prjFile) : new ProjectionInfo();
}
