ArcGIS Engine 코드 공유 - 투영(Spatial Reference) 객체 작업

20209 단어 ArcGISEngine
 public class SpatialReferenceHelper
    {
        // Fields
        private const double ParaC = 6399596.65198801;
        private const double ParaE1 = 0.00669438499958795;
        private const double Parak0 = 1.57048687472752E-07;
        private const double Parak1 = 0.00505250559291393;
        private const double Parak2 = 2.98473350966158E-05;
        private const double Parak3 = 2.41627215981336E-07;
        private const double Parak4 = 2.22241909461273E-09;

        // Methods
     
        public static double DistanceOfTwoEarthPoints(double lng1, double lat1, double lng2, double lat2, GaussSphere gs)
        {
            double d = Rad(lat1);
            double num2 = Rad(lat2);
            double num3 = d - num2;
            double num4 = Rad(lng1) - Rad(lng2);
            double num5 = 2.0 * Math.Asin(Math.Sqrt(Math.Pow(Math.Sin(num3 / 2.0), 2.0) + ((Math.Cos(d) * Math.Cos(num2)) * Math.Pow(Math.Sin(num4 / 2.0), 2.0))));
            num5 *= (gs == GaussSphere.WGS84) ? 6378137.0 : ((gs == GaussSphere.Xian80) ? 6378140.0 : 6378245.0);
            return (Math.Round((double)(num5 * 10000.0)) / 10000.0);
        }

        public static string FormatJWD(double pJWD)
        {
            int num = (int)pJWD;
            double num2 = (pJWD - num) * 60.0;
            int num3 = (int)num2;
            num2 = (num2 - num3) * 60.0;
            int num4 = (int)num2;
            return string.Concat(new object[] { num, "\x00b0", num3, "'", num4, "\"" });
        }

        public static string FormatJWDEx(double pJWD)
        {
            int num = (int)pJWD;
            double num2 = (pJWD - num) * 60.0;
            int num3 = (int)num2;
            num2 = (num2 - num3) * 60.0;
            int num4 = (int)num2;
            return string.Concat(new object[] { num, " ", num3, " ", num4, " " });
        }

        public static string FormatSpatialReference(ISpatialReference sr)
        {
            try
            {
                if (sr == null)
                {
                    return "";
                }
                StringBuilder builder = new StringBuilder();
                if (sr is UnknownCoordinateSystemClass)
                {
                    builder.Append("UnknownCoordinateSystem");
                }
                else
                {
                    if (sr.Name == "Unknown")
                    {
                        builder.Append("UnknownCoordinateSystem");
                    }
                    else
                    {
                        IGeographicCoordinateSystem system2;
                        if (sr is IProjectedCoordinateSystem)
                        {
                            Exception exception;
                            IProjectedCoordinateSystem system = sr as IProjectedCoordinateSystem;
                            builder.Append("     :
"); builder.Append(" Name:").Append(system.Name).Append("
"); builder.Append(" Alias:").Append(system.Alias).Append("
"); builder.Append(" Abbreviation:").Append(system.Abbreviation).Append("
"); builder.Append(" Remarks:").Append(system.Remarks).Append("
"); builder.Append(" :").Append(system.Projection.Name).Append("
"); builder.Append(" :
"); builder.Append(" False_Easting:").Append(system.FalseEasting).Append("
"); builder.Append(" False_Northing:").Append(system.FalseNorthing).Append("
"); builder.Append(" Central_Meridian:").Append(system.get_CentralMeridian(true)).Append("
"); try { builder.Append(" Scale_Factor:").Append(system.ScaleFactor).Append("
"); } catch { } builder.Append(" Latitude_Of_Origin:0
"); builder.Append("Linear Unit:").Append(system.CoordinateUnit.Name).Append("(").Append(system.CoordinateUnit.MetersPerUnit).Append(")
"); builder.Append("Geographic Coordinate System:
"); system2 = system.GeographicCoordinateSystem; builder.Append(" Name:").Append(system2.Name).Append("
"); builder.Append(" Alias:").Append(system2.Alias).Append("
"); builder.Append(" Abbreviation:").Append(system2.Abbreviation).Append("
"); builder.Append(" Remarks:").Append(system2.Remarks).Append("
"); builder.Append(" Angular Unit:").Append(system2.CoordinateUnit.Name).Append("(").Append(system2.CoordinateUnit.RadiansPerUnit).Append(")
"); builder.Append(" Prime Meridian:").Append(system2.PrimeMeridian.Name).Append("(").Append(system2.PrimeMeridian.Longitude).Append(")
"); builder.Append(" Datum:").Append(system2.Datum.Name).Append("
"); builder.Append(" Spheroid:").Append(system2.Datum.Spheroid.Name).Append("
"); builder.Append(" Semimajor Axis:").Append(system2.Datum.Spheroid.SemiMajorAxis).Append("
"); builder.Append(" Semiminor Axis:").Append(system2.Datum.Spheroid.SemiMinorAxis).Append("
"); builder.Append(" Inverse Flattening:").Append((double)(1.0 / system2.Datum.Spheroid.Flattening)).Append("
"); builder.Append("X/Y Domain:
"); try { double num = 0.0; double num2 = 0.0; double num3 = 0.0; double num4 = 0.0; double num5 = 0.0; sr.GetDomain(out num, out num3, out num2, out num4); sr.GetFalseOriginAndUnits(out num, out num2, out num5); builder.Append(" Min X:").Append(num).Append("
"); builder.Append(" Min Y:").Append(num2).Append("
"); builder.Append(" Max X:").Append(num3).Append("
"); builder.Append(" Max Y:").Append(num4).Append("
"); builder.Append(" XYScale:").Append(num5).Append("
"); builder.Append("
"); } catch (Exception exception1) { exception = exception1; } builder.Append("Z Domain:
"); try { double num6; double num7; double num8 = 0.0; sr.GetZDomain(out num6, out num7); sr.GetZFalseOriginAndUnits(out num6, out num8); builder.Append(" Min Z:").Append(num6).Append("
"); builder.Append(" Max Z:").Append(num7).Append("
"); builder.Append(" ZScale:").Append(num8).Append("
"); builder.Append("
"); } catch (Exception exception2) { exception = exception2; } try { double num9; double num10; builder.Append("M Domain:
"); double num11 = 0.0; sr.GetMDomain(out num9, out num10); sr.GetMFalseOriginAndUnits(out num9, out num11); builder.Append(" Min M:").Append(num9).Append("
"); builder.Append(" Max M:").Append(num10).Append("
"); builder.Append(" MScale:").Append(num11).Append("
"); } catch (Exception exception3) { exception = exception3; } } else if (sr is IGeographicCoordinateSystem) { builder.Append("Geographic Coordinate System:
"); system2 = sr as IGeographicCoordinateSystem; builder.Append(" Name:").Append(system2.Name).Append("
"); builder.Append(" Alias:").Append(system2.Alias).Append("
"); builder.Append(" Abbreviation:").Append(system2.Abbreviation).Append("
"); builder.Append(" Remarks:").Append(system2.Remarks).Append("
"); builder.Append(" Angular Unit:").Append(system2.CoordinateUnit.Name).Append("(").Append(system2.CoordinateUnit.RadiansPerUnit).Append(")
"); builder.Append(" Prime Meridian:").Append(system2.PrimeMeridian.Name).Append("(").Append(system2.PrimeMeridian.Longitude).Append(")
"); builder.Append(" Datum:").Append(system2.Datum.Name).Append("
"); builder.Append(" Spheroid:").Append(system2.Datum.Spheroid.Name).Append("
"); builder.Append(" Semimajor Axis:").Append(system2.Datum.Spheroid.SemiMajorAxis).Append("
"); builder.Append(" Semiminor Axis:").Append(system2.Datum.Spheroid.SemiMinorAxis).Append("
"); builder.Append(" Inverse Flattening:").Append((double)(1.0 / system2.Datum.Spheroid.Flattening)).Append("
"); } } } return builder.ToString(); } catch (Exception ex) { return ""; } } public static void GaussToGeo(double y, double x, short DH, out double L, out double B, double LP) { double num9 = 3.14159265358979; double num10 = 0.0067385254147; double num11 = 6399698.90178271; double num8 = (x / 1000000.0) - 3.0; double num6 = (((((27.11115372595 + (9.02468257083 * num8)) - (0.00579740442 * Math.Pow(num8, 2.0))) - (0.00043532572 * Math.Pow(num8, 3.0))) + (4.857285E-05 * Math.Pow(num8, 4.0))) + (2.15727E-06 * Math.Pow(num8, 5.0))) - (1.9399E-07 * Math.Pow(num8, 6.0)); double num2 = Math.Tan((num6 * num9) / 180.0); double num7 = num10 * Math.Pow(Math.Cos((num6 * num9) / 180.0), 2.0); double num3 = (y * Math.Sqrt(1.0 + num7)) / num11; double num5 = num6 - ((((1.0 + num7) * num2) / num9) * (((90.0 * Math.Pow(num3, 2.0)) - ((7.5 * (((5.0 + (3.0 * Math.Pow(num2, 2.0))) + num7) - ((9.0 * num7) * Math.Pow(num2, 2.0)))) * Math.Pow(num3, 4.0))) + ((0.25 * ((61.0 + (90.0 * Math.Pow(num2, 2.0))) + (45.0 * Math.Pow(num2, 4.0)))) * Math.Pow(num3, 6.0)))); double num4 = (((180.0 * num3) - ((30.0 * ((1.0 + (2.0 * Math.Pow(num2, 2.0))) + num7)) * Math.Pow(num3, 3.0))) + ((1.5 * ((5.0 + (28.0 * Math.Pow(num2, 2.0))) + (24.0 * Math.Pow(num2, 4.0)))) * Math.Pow(num3, 5.0))) / (num9 * Math.Cos((num6 * num9) / 180.0)); double num = num4 * 3600.0; if (LP == -1000.0) { L = (((DH * 6) - 3) * 3600.0) + num; } else { L = (LP * 3600.0) + num; } B = num5 * 3600.0; } public static void GeoToGauss(double jd, double wd, short DH, short DH_width, out double y, out double x, double LP) { double num2; double num12 = 3.14159265358979; double num13 = 0.0067385254147; double num14 = 6399698.90178271; double num4 = ((jd / 3600.0) * num12) / 180.0; double a = ((wd / 3600.0) * num12) / 180.0; if (LP == -1000.0) { num2 = (DH - 0.5) * DH_width; } else { num2 = LP; } double num3 = (jd / 3600.0) - num2; double num10 = Math.Sin(a); double num11 = Math.Cos(a); double num8 = (30.870794749999998 * wd) - (((((32005.7799 * num10) + (133.9238 * Math.Pow(num10, 3.0))) + (0.6976 * Math.Pow(num10, 5.0))) + (0.0039 * Math.Pow(num10, 7.0))) * num11); double num6 = num13 * Math.Pow(num11, 2.0); double num7 = num14 / Math.Sqrt(1.0 + num6); double num = Math.Tan(a); double num9 = ((num12 / 180.0) * num3) * num11; x = num8 + ((num7 * num) * (((0.5 * Math.Pow(num9, 2.0)) + (((((5.0 - Math.Pow(num, 2.0)) + (9.0 * num6)) + (4.0 * Math.Pow(num6, 2.0))) * Math.Pow(num9, 4.0)) / 24.0)) + ((((61.0 - (58.0 * Math.Pow(num, 2.0))) + Math.Pow(num, 4.0)) * Math.Pow(num9, 6.0)) / 720.0))); y = num7 * ((num9 + ((((1.0 - Math.Pow(num, 2.0)) + num6) * Math.Pow(num9, 3.0)) / 6.0)) + ((((((5.0 - (18.0 * Math.Pow(num, 2.0))) + Math.Pow(num, 4.0)) + (14.0 * num6)) - ((58.0 * num6) * Math.Pow(num, 2.0))) * Math.Pow(num9, 5.0)) / 120.0)); } private void GKTransform(double x, double y, ref double B, ref double L, double center, int n) { double num = (y - 500000.0) - (0xf4240 * n); double a = 1.57048687472752E-07 * x; double num4 = Math.Sin(a); double num2 = a + (Math.Cos(a) * ((((0.00505250559291393 * num4) - (2.98473350966158E-05 * Math.Pow(num4, 3.0))) + (2.41627215981336E-07 * Math.Pow(num4, 5.0))) - (2.22241909461273E-09 * Math.Pow(num4, 7.0)))); double num6 = Math.Tan(num2); double num8 = 0.00669438499958795 * Math.Pow(Math.Cos(num2), 2.0); double num5 = Math.Sqrt(1.0 + num8); double num7 = 6399596.65198801 / num5; double num10 = num / num7; double num9 = Math.Pow(num5, 2.0) * num6; double num11 = Math.Pow(num6, 2.0); B = ((num2 - ((num9 * Math.Pow(num10, 2.0)) / 2.0)) + ((((((5.0 + (3.0 * num11)) + num8) - ((9.0 * num8) * num11)) * num9) * Math.Pow(num10, 4.0)) / 24.0)) - (((((61.0 + (90.0 * num11)) + (45.0 * Math.Pow(num11, 2.0))) * num9) * Math.Pow(num10, 6.0)) / 720.0); double num13 = 1.0 / Math.Cos(num2); L = (((num13 * num10) - (((((1.0 + (2.0 * num11)) + num8) * num13) * Math.Pow(num10, 3.0)) / 6.0)) + (((((((5.0 + (28.0 * num11)) + (24.0 * Math.Pow(num11, 2.0))) + (6.0 * num8)) + ((8.0 * num8) * num11)) * num13) * Math.Pow(num10, 5.0)) / 120.0)) + center; } public static IPoint JWD2XY(IPoint pJWDPoint, int gcsType, int pcsType) { try { ISpatialReferenceFactory factory = new SpatialReferenceEnvironmentClass(); pJWDPoint.SpatialReference = factory.CreateGeographicCoordinateSystem(gcsType); pJWDPoint.Project(factory.CreateProjectedCoordinateSystem(pcsType)); return pJWDPoint; } catch { return null; } } private static double Rad(double d) { return ((d * 3.1415926535897931) / 180.0); } public static IPoint XY2JWD(double x, double y, int gcsType, int pcsType) { try { IPoint point = new PointClass(); point.PutCoords(x, y); ISpatialReferenceFactory factory = new SpatialReferenceEnvironmentClass(); point.SpatialReference = factory.CreateProjectedCoordinateSystem(pcsType); point.Project(factory.CreateGeographicCoordinateSystem(gcsType)); return point; } catch { return null; } } public static IPoint XY2JYD(ISpatialReference aSR, IPoint pXY) { IPoint point = new PointClass(); point = (pXY as IClone).Clone() as IPoint; if (aSR == null) { return point; } if (aSR.Name!= "Unknown") { point.SpatialReference = aSR; point.SnapToSpatialReference(); if (aSR is IProjectedCoordinateSystem) { IGeographicCoordinateSystem system = (aSR as IProjectedCoordinateSystem).GeographicCoordinateSystem; point.Project(system); } return point; } return null; } // Nested Types public enum GaussSphere { Beijing54, Xian80, WGS84 } public static ISpatialReference SelectSR(String pFolderPath) { OpenFileDialog ofd = new OpenFileDialog(); ofd.Filter = "ESRI (*.prj)|*.prj"; ofd.Title = " ESRI "; ofd.Multiselect = false; if (pFolderPath != null && Directory.Exists(pFolderPath)) { ofd.InitialDirectory = pFolderPath; } if (ofd.ShowDialog() == DialogResult.OK) { string filePath = ofd.FileName; return ReadSR(filePath); } else return null; } public static ISpatialReference ReadSR(string pPrjFilePath) { if (File.Exists(pPrjFilePath)) { StreamReader aReader = new StreamReader(pPrjFilePath); string aLine = aReader.ReadToEnd(); aReader.Close(); int byteCount = 0; if (aLine.StartsWith("GEOGCS")) { GeographicCoordinateSystemClass sr = new GeographicCoordinateSystemClass(); (sr as IESRISpatialReference).ImportFromESRISpatialReference(aLine, out byteCount); return sr; } else { ProjectedCoordinateSystemClass sr = new ProjectedCoordinateSystemClass(); (sr as IESRISpatialReference).ImportFromESRISpatialReference(aLine, out byteCount); return sr; } } else { return null; } } }

좋은 웹페이지 즐겨찾기