private SpheroidProjectionBase CreatePolarStereographic(ProjectionCompilationParams opData)
{
Contract.Requires(opData != null);
var latParam = new MultiParameterSelector(
new LatitudeOfNaturalOriginParameterSelector(),
new LatitudeOfTrueScaleParameterSelector());
var originLonParam = new MultiParameterSelector(
new LongitudeOfNaturalOriginParameterSelector(),
new FullMatchParameterSelector("LONDOWNFROMPOLE"));// new KeywordNamedParameterSelector("LON", "ORIGIN");
var offsetXParam = new FalseEastingParameterSelector();
var offsetYParam = new FalseNorthingParameterSelector();
var standardParallelParam = new StandardParallelParameterSelector();
var scaleFactorParam = new ScaleFactorParameterSelector();
opData.ParameterLookup.Assign(latParam, originLonParam, offsetXParam, offsetYParam, standardParallelParam, scaleFactorParam);
var linearUnit = opData.StepParams.RelatedOutputCrsUnit;
var fromSpheroid = opData.StepParams.ConvertRelatedOutputSpheroidUnit(linearUnit);
if (null == fromSpheroid)
return null;
double latitude, longitude;
if (!latParam.TryGetValueAsDouble(OgcAngularUnit.DefaultRadians, out latitude))
latitude = 0;
if (!originLonParam.TryGetValueAsDouble(OgcAngularUnit.DefaultRadians, out longitude))
longitude = 0;
double xOffset, yOffset;
var offset = (offsetXParam.TryGetValueAsDouble(linearUnit, out xOffset) && offsetYParam.TryGetValueAsDouble(linearUnit, out yOffset))
? new Vector2(xOffset, yOffset)
: Vector2.Zero;
double scaleFactor;
if (scaleFactorParam.TryGetValueAsDouble(ScaleUnitUnity.Value, out scaleFactor))
return new PolarStereographic(new GeographicCoordinate(latitude,longitude), scaleFactor, offset, fromSpheroid);
double standardParallel;
if (standardParallelParam.TryGetValueAsDouble(OgcAngularUnit.DefaultRadians, out standardParallel)) {
if (
(offsetXParam.IsSelected && opData.ParameterLookup.ParameterNameNormalizedComparer.Normalize(offsetXParam.Selection.Name).Contains("ORIGIN"))
|| (offsetYParam.IsSelected && opData.ParameterLookup.ParameterNameNormalizedComparer.Normalize(offsetYParam.Selection.Name).Contains("ORIGIN"))
) {
return PolarStereographic.CreateFromStandardParallelAndFalseOffsetAtOrigin(longitude, standardParallel, offset, fromSpheroid);
}
return PolarStereographic.CreateFromStandardParallel(longitude, standardParallel, offset, fromSpheroid);
}
throw new InvalidOperationException();
}
private ITransformation<GeographicCoordinate, Point2> CreateMercator(ProjectionCompilationParams opData)
{
Contract.Requires(opData != null);
var originLatParam = new MultiParameterSelector(
new LatitudeOfNaturalOriginParameterSelector(),
new LatitudeOfTrueScaleParameterSelector(),
new StandardParallelParameterSelector());
var originLonParam = new MultiParameterSelector(
new CentralMeridianParameterSelector(),
new LongitudeOfNaturalOriginParameterSelector());
var offsetXParam = new FalseEastingParameterSelector();
var offsetYParam = new FalseNorthingParameterSelector();
var scaleFactorParam = new ScaleFactorParameterSelector();
opData.ParameterLookup.Assign(originLatParam, originLonParam, offsetXParam, offsetYParam, scaleFactorParam);
var spheroid = opData.StepParams.ConvertRelatedOutputSpheroidUnit(opData.StepParams.RelatedOutputCrsUnit);
if (null == spheroid)
return null;
GeographicCoordinate origin;
if (!(originLatParam.IsSelected || originLonParam.IsSelected) || !TryCreateGeographicCoordinate(originLatParam.Selection, originLonParam.Selection, out origin))
origin = GeographicCoordinate.Zero;
Vector2 offset;
if (!(offsetXParam.IsSelected || offsetYParam.IsSelected) || !TryCreateVector2(offsetXParam.Selection, offsetYParam.Selection, opData.StepParams.RelatedOutputCrsUnit, out offset))
offset = Vector2.Zero;
// ReSharper disable CompareOfFloatsByEqualityOperator
double scaleFactor;
if (scaleFactorParam.IsSelected && TryGetDouble(scaleFactorParam.Selection, ScaleUnitUnity.Value, out scaleFactor)) {
if (1 == scaleFactor && 0 == spheroid.E)
return new MercatorSpherical(offset, origin.Longitude, spheroid.A);
return new Mercator(origin.Longitude, scaleFactor, offset, spheroid);
}
if (0 == spheroid.E)
return new MercatorSpherical(offset, origin.Longitude, spheroid.A);
return new Mercator(origin, offset, spheroid);
// ReSharper restore CompareOfFloatsByEqualityOperator
}
private SpheroidProjectionBase CreateObliqueStereographic(ProjectionCompilationParams opData)
{
Contract.Requires(opData != null);
var originLatParam = new LatitudeOfNaturalOriginParameterSelector();
var originLonParam = new LongitudeOfNaturalOriginParameterSelector();
var offsetXParam = new FalseEastingParameterSelector();
var offsetYParam = new FalseNorthingParameterSelector();
var scaleFactorParam = new ScaleFactorParameterSelector();
opData.ParameterLookup.Assign(originLatParam, originLonParam, offsetXParam, offsetYParam, scaleFactorParam);
var spheroid = opData.StepParams.ConvertRelatedOutputSpheroidUnit(opData.StepParams.RelatedOutputCrsUnit);
if (null == spheroid)
return null;
GeographicCoordinate origin;
if (!(originLatParam.IsSelected || originLonParam.IsSelected) || !TryCreateGeographicCoordinate(originLatParam.Selection, originLonParam.Selection, out origin))
origin = GeographicCoordinate.Zero;
Vector2 offset;
if (!(offsetXParam.IsSelected || offsetYParam.IsSelected) || !TryCreateVector2(offsetXParam.Selection, offsetYParam.Selection, opData.StepParams.RelatedOutputCrsUnit, out offset))
offset = Vector2.Zero;
double scaleFactor;
if (scaleFactorParam.IsSelected && TryGetDouble(scaleFactorParam.Selection, ScaleUnitUnity.Value, out scaleFactor))
return new ObliqueStereographic(origin, scaleFactor, offset, spheroid);
return null;
}
private SpheroidProjectionBase CreateLambertAzimuthalEqualArea(ProjectionCompilationParams opData)
{
Contract.Requires(opData != null);
var originLatParam = new LatitudeOfNaturalOriginParameterSelector();
var originLonParam = new LongitudeOfNaturalOriginParameterSelector();
var offsetXParam = new FalseEastingParameterSelector();
var offsetYParam = new FalseNorthingParameterSelector();
opData.ParameterLookup.Assign(originLatParam, originLonParam, offsetXParam, offsetYParam);
var spheroid = opData.StepParams.ConvertRelatedOutputSpheroidUnit(opData.StepParams.RelatedOutputCrsUnit);
if (null == spheroid)
return null;
GeographicCoordinate origin;
if (!originLatParam.IsSelected || !originLonParam.IsSelected || !TryCreateGeographicCoordinate(originLatParam.Selection, originLonParam.Selection, out origin))
origin = GeographicCoordinate.Zero;
Vector2 offset;
if (!offsetXParam.IsSelected || !offsetYParam.IsSelected || !TryCreateVector2(offsetXParam.Selection, offsetYParam.Selection, out offset))
offset = Vector2.Zero;
var spherical = _coordinateOperationNameComparer.Normalize(opData.OperationName).EndsWith("SPHERICAL");
if (spherical)
return new LambertAzimuthalEqualAreaSpherical(origin, offset, spheroid);
if (Math.Abs(origin.Latitude - (Math.PI / 2.0)) < 0.00000001)
return new LambertAzimuthalEqualAreaPolar(origin, offset, spheroid); // N
if (Math.Abs(origin.Latitude - (Math.PI / -2.0)) < 0.00000001)
return new LambertAzimuthalEqualAreaPolar(origin, offset, spheroid); // S
return new LambertAzimuthalEqualAreaOblique(origin, offset, spheroid);
}
private ITransformation<GeographicCoordinate, Point2> CreateLambertConicConformal(ProjectionCompilationParams opData)
{
Contract.Requires(opData != null);
var originLatParam = new KeywordNamedParameterSelector("LAT", "ORIGIN");
var originLonParam = new KeywordNamedParameterSelector("LON", "ORIGIN", "CENTRAL", "MERIDIAN");
var parallel1Param = new KeywordNamedParameterSelector("LAT", "1", "PARALLEL");
var parallel2Param = new KeywordNamedParameterSelector("LAT", "2", "PARALLEL");
var offsetXParam = new FalseEastingParameterSelector();
var offsetYParam = new FalseNorthingParameterSelector();
var scaleFactorParam = new ScaleFactorParameterSelector();
opData.ParameterLookup.Assign(originLatParam, originLonParam, offsetXParam, offsetYParam, scaleFactorParam, parallel1Param, parallel2Param);
var spheroid = opData.StepParams.ConvertRelatedOutputSpheroidUnit(opData.StepParams.RelatedOutputCrsUnit);
if (null == spheroid)
return null;
GeographicCoordinate origin;
if (!(originLatParam.IsSelected || originLonParam.IsSelected) || !TryCreateGeographicCoordinate(originLatParam.Selection, originLonParam.Selection, out origin))
origin = GeographicCoordinate.Zero;
Vector2 offset;
if (!(offsetXParam.IsSelected || offsetYParam.IsSelected) || !TryCreateVector2(offsetXParam.Selection, offsetYParam.Selection, opData.StepParams.RelatedOutputCrsUnit, out offset))
offset = Vector2.Zero;
double parallel1, parallel2;
if (parallel1Param.IsSelected && parallel2Param.IsSelected && TryGetDouble(parallel1Param.Selection, OgcAngularUnit.DefaultRadians, out parallel1) && TryGetDouble(parallel2Param.Selection, OgcAngularUnit.DefaultRadians, out parallel2)) {
if (_coordinateOperationNameComparer.Normalize(opData.OperationName).EndsWith("BELGIUM"))
return new LambertConicConformalBelgium(origin, parallel1, parallel2, offset, spheroid);
return new LambertConicConformal2Sp(origin, parallel1, parallel2, offset, spheroid);
}
if (scaleFactorParam.IsSelected){
double scaleFactor;
if(TryGetDouble(scaleFactorParam.Selection, ScaleUnitUnity.Value, out scaleFactor))
return new LambertConicConformal1Sp(origin, scaleFactor, offset, spheroid);
}
return null;
}
private ITransformation<GeographicCoordinate, Point2> CreateKrovak(ProjectionCompilationParams opData)
{
Contract.Requires(opData != null);
var latConeAxisParam = new KeywordNamedParameterSelector("CO", "LAT", "CONE", "AXIS"); // Co-latitude of cone axis
var latProjectionCenterParam = new KeywordNamedParameterSelector("LAT", "CENTER"); // Latitude of projection centre
var latPseudoParallelParam = new KeywordNamedParameterSelector("LAT", "PSEUDO", "PARALLEL"); // Latitude of pseudo standard parallel
var scaleFactorParallelParam = new KeywordNamedParameterSelector("SCALE", "PARALLEL"); // Scale factor on pseudo standard parallel
var originLonParam = new KeywordNamedParameterSelector("LON", "ORIGIN"); // Longitude of origin
var offsetXParam = new FalseEastingParameterSelector();
var offsetYParam = new FalseNorthingParameterSelector();
var evalXParam = new KeywordNamedParameterSelector("ORDINATE1", "EVALUATION", "POINT");
var evalYParam = new KeywordNamedParameterSelector("ORDINATE2", "EVALUATION", "POINT");
opData.ParameterLookup.Assign(latConeAxisParam, latProjectionCenterParam, latPseudoParallelParam, scaleFactorParallelParam, originLonParam, offsetXParam, offsetYParam, evalXParam, evalYParam);
var spheroid = opData.StepParams.ConvertRelatedOutputSpheroidUnit(opData.StepParams.RelatedOutputCrsUnit);
if (null == spheroid)
return null;
GeographicCoordinate origin;
if (!latProjectionCenterParam.IsSelected || !originLonParam.IsSelected || !TryCreateGeographicCoordinate(latProjectionCenterParam.Selection, originLonParam.Selection, out origin))
origin = GeographicCoordinate.Zero;
Vector2 offset;
if (!offsetXParam.IsSelected || !offsetYParam.IsSelected || !TryCreateVector2(offsetXParam.Selection, offsetYParam.Selection, out offset))
offset = Vector2.Zero;
Point2 evalPoint;
if (!evalXParam.IsSelected || !evalYParam.IsSelected || !TryCreatePoint2(evalXParam.Selection, evalYParam.Selection, out evalPoint))
evalPoint = Point2.Zero;
double azimuthOfInitialLine;
if (!latConeAxisParam.IsSelected || !TryGetDouble(latConeAxisParam.Selection, OgcAngularUnit.DefaultRadians, out azimuthOfInitialLine))
azimuthOfInitialLine = Double.NaN;
double latitudeOfPseudoStandardParallel;
if (!latPseudoParallelParam.IsSelected || !TryGetDouble(latPseudoParallelParam.Selection, OgcAngularUnit.DefaultRadians, out latitudeOfPseudoStandardParallel))
latitudeOfPseudoStandardParallel = Double.NaN;
double scaleFactor;
if (!scaleFactorParallelParam.IsSelected || !TryGetDouble(scaleFactorParallelParam.Selection, ScaleUnitUnity.Value, out scaleFactor))
scaleFactor = Double.NaN;
var normalizedName = _coordinateOperationNameComparer.Normalize(opData.OperationName);
double[] constants = null;
if (normalizedName.StartsWith("KROVAKMODIFIED")) {
var constantParams = new NamedParameterSelector[] {
new FullMatchParameterSelector("C1"),
new FullMatchParameterSelector("C2"),
new FullMatchParameterSelector("C3"),
new FullMatchParameterSelector("C4"),
new FullMatchParameterSelector("C5"),
new FullMatchParameterSelector("C6"),
new FullMatchParameterSelector("C7"),
new FullMatchParameterSelector("C8"),
new FullMatchParameterSelector("C9"),
new FullMatchParameterSelector("C10")
};
if (opData.ParameterLookup.Assign(constantParams)) {
constants = constantParams
.OrderBy(x => Int32.Parse(x.Selection.Name.Substring(1)))
.Select(p => {
double value;
TryGetDouble(p.Selection, ScaleUnitUnity.Value, out value);
return value;
})
.ToArray();
Contract.Assume(constants.Length == constantParams.Length);
}
}
if (normalizedName.Equals("KROVAKNORTH")) {
return new KrovakNorth(origin, latitudeOfPseudoStandardParallel, azimuthOfInitialLine, scaleFactor, offset, spheroid);
}
if (null != constants) {
if (normalizedName.Equals("KROVAKMODIFIED")) {
return new KrovakModified(origin, latitudeOfPseudoStandardParallel, azimuthOfInitialLine, scaleFactor, offset, spheroid, evalPoint, constants);
}
if (normalizedName.Equals("KROVAKMODIFIEDNORTH")) {
return new KrovakModifiedNorth(origin, latitudeOfPseudoStandardParallel, azimuthOfInitialLine, scaleFactor, offset, spheroid, evalPoint, constants);
}
}
return new Krovak(origin, latitudeOfPseudoStandardParallel, azimuthOfInitialLine, scaleFactor, offset, spheroid);
}
private SpheroidProjectionBase CreateLabordeObliqueMercator(ProjectionCompilationParams opData)
{
Contract.Requires(opData != null);
var originLatParam = new KeywordNamedParameterSelector("LAT", "CENTER");
var originLonParam = new KeywordNamedParameterSelector("LON", "CENTER");
var offsetXParam = new FalseEastingParameterSelector();
var offsetYParam = new FalseNorthingParameterSelector();
var scaleFactorParam = new ScaleFactorParameterSelector();
var azimuthParam = new KeywordNamedParameterSelector("AZIMUTH");
opData.ParameterLookup.Assign(originLatParam, originLonParam, offsetXParam, offsetYParam, scaleFactorParam, azimuthParam);
var spheroid = opData.StepParams.ConvertRelatedOutputSpheroidUnit(opData.StepParams.RelatedOutputCrsUnit);
if (null == spheroid)
return null;
GeographicCoordinate origin;
if (!(originLatParam.IsSelected || originLonParam.IsSelected) || !TryCreateGeographicCoordinate(originLatParam.Selection, originLonParam.Selection, out origin))
origin = GeographicCoordinate.Zero;
Vector2 offset;
if (!(offsetXParam.IsSelected || offsetYParam.IsSelected) || !TryCreateVector2(offsetXParam.Selection, offsetYParam.Selection, opData.StepParams.RelatedOutputCrsUnit, out offset))
offset = Vector2.Zero;
double scaleFactor;
if (!scaleFactorParam.IsSelected || !TryGetDouble(scaleFactorParam.Selection, ScaleUnitUnity.Value, out scaleFactor))
scaleFactor = 1.0;
double azimuth;
if (!azimuthParam.IsSelected || !TryGetDouble(azimuthParam.Selection, OgcAngularUnit.DefaultRadians, out azimuth))
azimuth = 0;
return new LabordeObliqueMercator(origin, azimuth, scaleFactor, spheroid, offset);
}
private SpheroidProjectionBase CreateEquidistantCylindrical(ProjectionCompilationParams opData)
{
Contract.Requires(opData != null);
var originLatParam = new KeywordNamedParameterSelector("LAT", "PARALLEL");
var originLonParam = new LongitudeOfNaturalOriginParameterSelector();
var offsetXParam = new FalseEastingParameterSelector();
var offsetYParam = new FalseNorthingParameterSelector();
opData.ParameterLookup.Assign(originLatParam, originLonParam, offsetXParam, offsetYParam);
var spheroid = opData.StepParams.ConvertRelatedOutputSpheroidUnit(opData.StepParams.RelatedOutputCrsUnit);
if (null == spheroid)
return null;
GeographicCoordinate origin;
if (!originLatParam.IsSelected || !originLonParam.IsSelected || !TryCreateGeographicCoordinate(originLatParam.Selection, originLonParam.Selection, out origin))
origin = GeographicCoordinate.Zero;
Vector2 offset;
if (!offsetXParam.IsSelected || !offsetYParam.IsSelected || !TryCreateVector2(offsetXParam.Selection, offsetYParam.Selection, out offset))
offset = Vector2.Zero;
// ReSharper disable CompareOfFloatsByEqualityOperator
var spherical = _coordinateOperationNameComparer.Normalize(opData.OperationName).EndsWith("SPHERICAL")
|| spheroid.E == 0;
// ReSharper restore CompareOfFloatsByEqualityOperator
return spherical
? (SpheroidProjectionBase)new EquidistantCylindricalSpherical(origin, offset, spheroid)
: new EquidistantCylindrical(origin, offset, spheroid);
}
private SpheroidProjectionBase CreateHotineObliqueMercator(ProjectionCompilationParams opData)
{
Contract.Requires(opData != null);
var latParam = new MultiParameterSelector(
new LatitudeOfCenterParameterSelector(),
new LatitudeOfNaturalOriginParameterSelector());
var lonParam = new MultiParameterSelector(
new LongitudeOfCenterParameterSelector(),
new LongitudeOfNaturalOriginParameterSelector());
var scaleFactorParam = new ScaleFactorParameterSelector();
var azimuthParam = new KeywordNamedParameterSelector("AZIMUTH");
var angleSkewParam = new KeywordNamedParameterSelector("ANGLE", "SKEW");
var offsetXParam = new FalseEastingParameterSelector();
var offsetYParam = new FalseNorthingParameterSelector();
var xAtOriginParam = new EastingAtCenterParameterSelector();
var yAtOriginParam = new NorthingAtCenterParameterSelector();
opData.ParameterLookup.Assign(latParam, lonParam, offsetXParam, offsetYParam, xAtOriginParam, yAtOriginParam, scaleFactorParam, azimuthParam, angleSkewParam);
var spheroid = opData.StepParams.ConvertRelatedOutputSpheroidUnit(opData.StepParams.RelatedOutputCrsUnit);
if (null == spheroid)
return null;
double lat, lon;
if(!latParam.IsSelected || !latParam.TryGetValueAsDouble(OgcAngularUnit.DefaultRadians, out lat))
lat = 0;
if(!lonParam.IsSelected || !lonParam.TryGetValueAsDouble(OgcAngularUnit.DefaultRadians, out lon))
lon = 0;
var origin = new GeographicCoordinate(lat, lon);
double scaleFactor;
if (!scaleFactorParam.IsSelected || !TryGetDouble(scaleFactorParam.Selection, ScaleUnitUnity.Value, out scaleFactor))
scaleFactor = 1.0;
double azimuth;
if (!azimuthParam.IsSelected || !TryGetDouble(azimuthParam.Selection, OgcAngularUnit.DefaultRadians, out azimuth))
azimuth = 0;
double angleSkew;
if (!angleSkewParam.IsSelected || !TryGetDouble(angleSkewParam.Selection, OgcAngularUnit.DefaultRadians, out angleSkew))
angleSkew = 0;
var outputUnit = opData.StepParams.RelatedOutputCrsUnit;
double x,y;
if(xAtOriginParam.IsSelected || yAtOriginParam.IsSelected){
if (!xAtOriginParam.IsSelected || !xAtOriginParam.TryGetValueAsDouble(outputUnit, out x))
x = 0;
if (!yAtOriginParam.IsSelected || !yAtOriginParam.TryGetValueAsDouble(outputUnit, out y))
y = 0;
return new HotineObliqueMercator.VariantB(new GeographicCoordinate(lat, lon), azimuth, angleSkew, scaleFactor, new Vector2(x,y), spheroid);
}
else {
if (!offsetXParam.IsSelected || !offsetXParam.TryGetValueAsDouble(outputUnit, out x))
x = 0;
if (!offsetYParam.IsSelected || !offsetYParam.TryGetValueAsDouble(outputUnit, out y))
y = 0;
return new HotineObliqueMercator.VariantA(new GeographicCoordinate(lat, lon), azimuth, angleSkew, scaleFactor, new Vector2(x,y), spheroid);
}
}
private ITransformation<GeographicCoordinate, Point2> CreateCassiniSoldner(ProjectionCompilationParams opData)
{
Contract.Requires(opData != null);
var originLatParam = new LatitudeOfNaturalOriginParameterSelector();
var originLonParam = new LongitudeOfNaturalOriginParameterSelector();
var offsetXParam = new FalseEastingParameterSelector();
var offsetYParam = new FalseNorthingParameterSelector();
opData.ParameterLookup.Assign(originLatParam, originLonParam, offsetXParam, offsetYParam);
var spheroid = opData.StepParams.ConvertRelatedOutputSpheroidUnit(opData.StepParams.RelatedOutputCrsUnit);
if (null == spheroid)
return null;
GeographicCoordinate origin;
if (!(originLatParam.IsSelected || originLonParam.IsSelected) || !TryCreateGeographicCoordinate(originLatParam.Selection, originLonParam.Selection, out origin))
origin = GeographicCoordinate.Zero;
Vector2 offset;
if (!(offsetXParam.IsSelected || offsetYParam.IsSelected) || !TryCreateVector2(offsetXParam.Selection, offsetYParam.Selection, opData.StepParams.RelatedOutputCrsUnit, out offset))
offset = Vector2.Zero;
return new CassiniSoldner(origin, offset, spheroid);
}
private AlbersEqualArea CreateAlbersEqualArea(ProjectionCompilationParams opData)
{
Contract.Requires(opData != null);
var originLatParam = new MultiParameterSelector(
new LatitudeOfFalseOrigin(),
new LatitudeOfNaturalOriginParameterSelector());
var originLonParam = new MultiParameterSelector(
new LongitudeOfFalseOrigin(),
new CentralMeridianParameterSelector(),
new LongitudeOfNaturalOriginParameterSelector(),
new LongitudeOfCenterParameterSelector());
var offsetXParam = new FalseEastingParameterSelector();
var offsetYParam = new FalseNorthingParameterSelector();
var lat1SpParam = new StandardParallelParameterSelector(1);
var lat2SpParam = new StandardParallelParameterSelector(2);
opData.ParameterLookup.Assign(originLatParam, originLonParam, offsetXParam, offsetYParam, lat1SpParam, lat2SpParam);
var fromSpheroid = opData.StepParams.ConvertRelatedOutputSpheroidUnit(opData.StepParams.RelatedOutputCrsUnit);
if (null == fromSpheroid)
return null;
GeographicCoordinate origin;
if (!(originLatParam.IsSelected || originLonParam.IsSelected) || !TryCreateGeographicCoordinate(originLatParam.Selection, originLonParam.Selection, out origin))
origin = GeographicCoordinate.Zero;
Vector2 offset;
if (!(offsetXParam.IsSelected || offsetYParam.IsSelected) || !TryCreateVector2(offsetXParam.Selection, offsetYParam.Selection, opData.StepParams.RelatedOutputCrsUnit, out offset))
offset = Vector2.Zero;
double parallel1;
if (!lat1SpParam.IsSelected || !TryGetDouble(lat1SpParam.Selection, OgcAngularUnit.DefaultRadians, out parallel1))
parallel1 = 0;
double parallel2;
if (!lat2SpParam.IsSelected || !TryGetDouble(lat2SpParam.Selection, OgcAngularUnit.DefaultRadians, out parallel2))
parallel2 = 0;
return new AlbersEqualArea(origin, parallel1, parallel2, offset, fromSpheroid);
}
private ITransformation<GeographicCoordinate, Point2> CompileForwardToTransform(StaticCoordinateOperationCompiler.StepCompilationParameters stepParameters)
{
Contract.Requires(stepParameters != null);
string operationName = null;
IEnumerable<INamedParameter> parameters = null;
var parameterizedOperation = stepParameters.CoordinateOperationInfo as IParameterizedCoordinateOperationInfo;
if (null != parameterizedOperation) {
if (null != parameterizedOperation.Method)
operationName = parameterizedOperation.Method.Name;
parameters = parameterizedOperation.Parameters;
}
if (null == operationName)
operationName = stepParameters.CoordinateOperationInfo.Name;
Func<ProjectionCompilationParams, ITransformation<GeographicCoordinate, Point2>> projectionCompiler;
if (String.IsNullOrEmpty(operationName) || !_transformationCreatorLookup.TryGetValue(operationName, out projectionCompiler) || null == projectionCompiler)
return null;
var parameterLookup = new NamedParameterLookup(parameters ?? Enumerable.Empty<INamedParameter>());
var projectionCompilationParams = new ProjectionCompilationParams(stepParameters, parameterLookup, operationName);
return projectionCompiler(projectionCompilationParams);
}
private static PopularVisualizationPseudoMercator CreatePopularVisualisationPseudoMercator(ProjectionCompilationParams opData)
{
Contract.Requires(opData != null);
var originLatParam = new LatitudeOfNaturalOriginParameterSelector();
var originLonParam = new LongitudeOfNaturalOriginParameterSelector();
var offsetXParam = new FalseEastingParameterSelector();
var offsetYParam = new FalseNorthingParameterSelector();
if (!opData.ParameterLookup.Assign(originLatParam, originLonParam, offsetXParam, offsetYParam))
return null;
var spheroid = opData.StepParams.ConvertRelatedOutputSpheroidUnit(opData.StepParams.RelatedOutputCrsUnit);
if (null == spheroid)
return null;
GeographicCoordinate origin;
Vector2 offset;
TryCreateGeographicCoordinate(originLatParam.Selection, originLonParam.Selection, out origin);
TryCreateVector2(offsetXParam.Selection, offsetYParam.Selection, out offset);
return new PopularVisualizationPseudoMercator(origin, offset, spheroid);
}
private static SpheroidProjectionBase CreateLambertCylindricalEqualAreaSpherical(ProjectionCompilationParams opData)
{
Contract.Requires(opData != null);
var originLatParam = new MultiParameterSelector(
new LatitudeOfNaturalOriginParameterSelector(),
new StandardParallelParameterSelector());
var originLonParam = new LongitudeOfNaturalOriginParameterSelector();
var offsetXParam = new FalseEastingParameterSelector();
var offsetYParam = new FalseNorthingParameterSelector();
opData.ParameterLookup.Assign(originLatParam, originLonParam, offsetXParam, offsetYParam);
var spheroid = opData.StepParams.ConvertRelatedOutputSpheroidUnit(opData.StepParams.RelatedOutputCrsUnit);
if (null == spheroid)
return null;
GeographicCoordinate origin;
if (!(originLatParam.IsSelected || originLonParam.IsSelected) || !TryCreateGeographicCoordinate(originLatParam.Selection, originLonParam.Selection, out origin))
origin = GeographicCoordinate.Zero;
Vector2 offset;
if (!(offsetXParam.IsSelected || offsetYParam.IsSelected) || !TryCreateVector2(offsetXParam.Selection, offsetYParam.Selection, opData.StepParams.RelatedOutputCrsUnit, out offset))
offset = Vector2.Zero;
return new LambertCylindricalEqualAreaSpherical(origin, offset, spheroid);
}