private static void ApplyParametersStere(ProjectionInfo result, IEnumerable <INamedParameter> parameters) { Contract.Requires(result != null); Contract.Requires(parameters != null); var lon0Param = new MultiParameterSelector( new CentralMeridianParameterSelector(), new LongitudeOfNaturalOriginParameterSelector(), new LongitudeOfCenterParameterSelector()); var spParam = new MultiParameterSelector( new LatitudeOfTrueScaleParameterSelector(), new StandardParallelParameterSelector(), new LatitudeOfNaturalOriginParameterSelector(), new LatitudeOfCenterParameterSelector()); var k0Param = new ScaleFactorParameterSelector(); var x0Param = new FalseEastingParameterSelector(); var y0Param = new FalseNorthingParameterSelector(); var paramLookup = new NamedParameterLookup(parameters); paramLookup.Assign(lon0Param, spParam, k0Param, x0Param, y0Param); if (lon0Param.IsSelected) { result.CentralMeridian = lon0Param.GetValueAsDouble(OgcAngularUnit.DefaultDegrees); } if (spParam.IsSelected) { result.StandardParallel1 = spParam.GetValueAsDouble(OgcAngularUnit.DefaultDegrees); } if (k0Param.IsSelected) { result.ScaleFactor = k0Param.GetValueAsDouble(ScaleUnitUnity.Value) ?? 1.0; } if (x0Param.IsSelected) { result.FalseEasting = x0Param.GetValueAsDouble(OgcLinearUnit.DefaultMeter); } if (y0Param.IsSelected) { result.FalseNorthing = y0Param.GetValueAsDouble(OgcLinearUnit.DefaultMeter); } if (!result.LatitudeOfOrigin.HasValue && result.StandardParallel1.HasValue) { result.LatitudeOfOrigin = result.StandardParallel1.GetValueOrDefault() >= 0 ? 90.0 : -90.0; } }
private static void ApplyParametersDefault(ProjectionInfo result, IEnumerable <INamedParameter> parameters) { Contract.Requires(result != null); Contract.Requires(parameters != null); var lon0Param = new MultiParameterSelector( new CentralMeridianParameterSelector(), new LongitudeOfNaturalOriginParameterSelector() ); var loncParam = new LongitudeOfCenterParameterSelector(); var lat0Param = new MultiParameterSelector( new LatitudeOfCenterParameterSelector(), new LatitudeOfNaturalOriginParameterSelector()); var lat1Param = new StandardParallelParameterSelector(1); var lat2Param = new StandardParallelParameterSelector(2); var x0Param = new FalseEastingParameterSelector(); var y0Param = new FalseNorthingParameterSelector(); var k0Param = new ScaleFactorParameterSelector(); var alphaParam = new KeywordNamedParameterSelector("ALPHA", "AZIMUTH"); var angleSkewParam = new KeywordNamedParameterSelector("SKEW", "GAMMA"); var zoneParam = new FullMatchParameterSelector("ZONE"); var southParam = new FullMatchParameterSelector("SOUTH"); var standardParallel1Param = new MultiParameterSelector( new StandardParallelParameterSelector(), new StandardParallelParameterSelector(1)); var standardParallel2Param = new StandardParallelParameterSelector(2); var paramLookup = new NamedParameterLookup(parameters); paramLookup.Assign(lon0Param, loncParam, lat0Param, lat1Param, lat2Param, x0Param, y0Param, k0Param, alphaParam, angleSkewParam, zoneParam, southParam, standardParallel1Param, standardParallel2Param); if (lon0Param.IsSelected) { result.CentralMeridian = lon0Param.GetValueAsDouble(OgcAngularUnit.DefaultDegrees); } if (loncParam.IsSelected) { result.LongitudeOfCenter = loncParam.GetValueAsDouble(OgcAngularUnit.DefaultDegrees); } if (lat0Param.IsSelected) { result.LatitudeOfOrigin = lat0Param.GetValueAsDouble(OgcAngularUnit.DefaultDegrees); } if (lat1Param.IsSelected) { result.StandardParallel1 = lat1Param.GetValueAsDouble(OgcAngularUnit.DefaultDegrees); } if (lat2Param.IsSelected) { result.StandardParallel2 = lat2Param.GetValueAsDouble(OgcAngularUnit.DefaultDegrees); } if (x0Param.IsSelected) { result.FalseEasting = x0Param.GetValueAsDouble(OgcLinearUnit.DefaultMeter); } if (y0Param.IsSelected) { result.FalseNorthing = y0Param.GetValueAsDouble(OgcLinearUnit.DefaultMeter); } if (k0Param.IsSelected) { result.ScaleFactor = k0Param.GetValueAsDouble(ScaleUnitUnity.Value) ?? 1.0; } if (alphaParam.IsSelected) { result.alpha = alphaParam.GetValueAsDouble(OgcAngularUnit.DefaultDegrees); } /*if (angleSkewParam.IsSelected) * result.gamma = angleSkewParam.GetValueAsDouble(OgcAngularUnit.DefaultDegrees);*/ if (southParam.IsSelected) { result.IsSouth = southParam.GetValueAsBoolean().GetValueOrDefault(); } if (standardParallel1Param.IsSelected) { result.StandardParallel1 = standardParallel1Param.GetValueAsDouble(OgcAngularUnit.DefaultDegrees); } if (standardParallel2Param.IsSelected) { result.StandardParallel2 = standardParallel2Param.GetValueAsDouble(OgcAngularUnit.DefaultDegrees); } if (zoneParam.IsSelected) { result.Zone = zoneParam.GetValueAsInt32(); } }
public static ProjectionInfo CreateProjection(ICrsProjected crsProjected) { if (crsProjected == null) { throw new ArgumentNullException("crsProjected"); } Contract.Ensures(Contract.Result <ProjectionInfo>() != null); var result = ProjectionInfo.FromProj4String(String.Empty); result.Name = crsProjected.Name; if (crsProjected.Authority != null) { int epsgCode; if (crsProjected.Authority.Name == "EPSG" && Int32.TryParse(crsProjected.Authority.Code, out epsgCode)) { result.EpsgCode = epsgCode; } result.Authority = crsProjected.Authority.Name; } var geographicBase = (crsProjected.BaseCrs as ICrsGeodetic) ?? (crsProjected as ICrsGeodetic); if (geographicBase != null) { result.GeographicInfo = Proj4CrsGeographic.CreateGeographic(geographicBase); } var projectionInfo = crsProjected.Projection as IParameterizedCoordinateOperationInfo; if (projectionInfo == null) { return(result); } var projectionMethod = projectionInfo.Method; if (projectionMethod == null) { throw new InvalidOperationException("No projection method."); } var proj4Name = ToProj4MethodName(projectionMethod.Name); IUnit geographicUnit = geographicBase == null ? null : geographicBase.Unit; IUnit projectionUnit = crsProjected.Unit; if (projectionUnit != null) { result.Unit = Proj4LinearUnit.ConvertToProj4(projectionUnit); } switch (proj4Name) { case "stere": ApplyParametersStere(result, projectionInfo.Parameters); break; default: ApplyParametersDefault(result, projectionInfo.Parameters); break; } if (result.Zone.HasValue && proj4Name == "tmerc") { proj4Name = "utm"; } if (!TransformManager.Transforms.Exists(x => x.Proj4Name == proj4Name)) { if (GeodeticOperationNameRegex.IsMatch(proj4Name)) { proj4Name = "longlat"; } else { throw new InvalidOperationException(); } } switch (proj4Name) { case "omerc": { var offsetXParam = new FalseEastingParameterSelector(); var offsetYParam = new FalseNorthingParameterSelector(); var xAtOriginParam = new EastingAtCenterParameterSelector(); var yAtOriginParam = new NorthingAtCenterParameterSelector(); var paramLookup = new NamedParameterLookup(projectionInfo.Parameters); paramLookup.Assign(offsetXParam, offsetYParam, xAtOriginParam, yAtOriginParam); if (offsetXParam.IsSelected || offsetYParam.IsSelected) { result.Transform = TransformManager.GetProjection("Hotine_Oblique_Mercator_Azimuth_Center"); } else if (xAtOriginParam.IsSelected || yAtOriginParam.IsSelected) { result.Transform = TransformManager.GetProjection("Hotine_Oblique_Mercator_Azimuth_Natural_Origin"); } else { result.Transform = TransformManager.GetProj4(proj4Name); } break; } default: result.Transform = TransformManager.GetProj4(proj4Name); break; } var finalResult = ProjectionInfo.FromProj4String(result.ToProj4String()); // TODO: fix this hack /*finalResult.CentralMeridian = result.CentralMeridian; * finalResult.LongitudeOfCenter = result.LongitudeOfCenter; * finalResult.LatitudeOfOrigin = result.LatitudeOfOrigin; * finalResult.StandardParallel1 = result.StandardParallel1; * finalResult.StandardParallel2 = result.StandardParallel2; * finalResult.FalseEasting = result.FalseEasting; * finalResult.FalseNorthing = result.FalseNorthing; * finalResult.ScaleFactor = result.ScaleFactor; * finalResult.alpha = result.alpha; * finalResult.IsSouth = result.IsSouth; * finalResult.Zone = result.Zone; * finalResult.Unit = result.Unit; * if (result.GeographicInfo == null) { // NOTE: this is all so terrible * finalResult.GeographicInfo = null; * } * else { * if (finalResult.GeographicInfo == null) { * finalResult.GeographicInfo = result.GeographicInfo; * } * else { * finalResult.GeographicInfo.Datum.Spheroid = result.GeographicInfo.Datum.Spheroid; * } * }*/ return(finalResult); }