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Transform Coordinate from One Coordinate System to Other Coordinate System

Transform coordinate from one coordinate system to other coordinate system

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  1. using System;  
  2. using System.Collections.Generic;  
  3. using System.Linq;  
  4. using System.Text;  
  5. using ProjNet.Converters.WellKnownText;  
  6. using ProjNet.CoordinateSystems;  
  7. using ProjNet.CoordinateSystems.Transformations;  
  8. namespace Transform32640To4326  
  9. {  
  10.     public class CoordinateTransformZC  
  11.     {  
  12.         public double[] TransForm(double[] inputCoordinate)  
  13.         {  
  14.             double[] output = null;  
  15.             try  
  16.             {  
  17.                 string wkt_WGS84N40 = "PROJCS[\"WGS_1984_UTM_Zone_40N\",GEOGCS[\"GCS_WGS_1984\",DATUM[\"D_WGS_1984\",SPHEROID[\"WGS_1984\",6378137.0,298.257223563]],PRIMEM[\"Greenwich\",0.0],UNIT[\"Degree\",0.0174532925199433]],PROJECTION[\"Transverse_Mercator\"],PARAMETER[\"False_Easting\",500000.0],PARAMETER[\"False_Northing\",0.0],PARAMETER[\"Central_Meridian\",57.0],PARAMETER[\"Scale_Factor\",0.9996],PARAMETER[\"Latitude_Of_Origin\",0.0],UNIT[\"Meter\",1.0]]";  
  18.                 IProjectedCoordinateSystem gcs_WGS84 = CoordinateSystemWktReader.Parse(wkt_WGS84N40) asIProjectedCoordinateSystem;  
  19.                 //Destination  
  20.                 string wkt_WgsGeo = "GEOGCS[\"GCS_WGS_1984\",DATUM[\"D_WGS_1984\",SPHEROID[\"WGS_1984\",6378137.0,298.257223563]],PRIMEM[\"Greenwich\",0.0],UNIT[\"Degree\",0.0174532925199433]]";  
  21.                 IGeographicCoordinateSystem geo = CoordinateSystemWktReader.Parse(wkt_WgsGeo) asIGeographicCoordinateSystem;  
  22.                 CoordinateTransformationFactory ctfac = new CoordinateTransformationFactory();  
  23.                 ICoordinateTransformation trans = ctfac.CreateFromCoordinateSystems(gcs_WGS84, geo);  
  24.                 //Console.WriteLine("Original Coordinates:");  
  25.                 double[] fromPoint = inputCoordinate; // U2U Consult Head Office, in degrees  
  26.                 output = trans.MathTransform.Transform(fromPoint);  
  27.             }  
  28.             catch (Exception ex)  
  29.             {  
  30.                 output = null;  
  31.             }  
  32.             return output;  
  33.         }  
  34.     }  
  35. }