private static StaticCoordinateOperationCompiler.StepCompilationResult CreateVerticalPerspective(TransformationCompilationParams opData)
{
Contract.Requires(opData != null);
var outputUnit = opData.StepParams.RelatedOutputCrsUnit;
if (null == outputUnit)
{
return(null);
}
var latParam = new KeywordNamedParameterSelector("LAT");
var lonParam = new KeywordNamedParameterSelector("LON");
var hOriginParam = new KeywordNamedParameterSelector("H", "HEIGHT", "ORIGIN");
var hViewParam = new KeywordNamedParameterSelector("H", "HEIGHT", "VIEW");
opData.ParameterLookup.Assign(latParam, lonParam, hOriginParam, hViewParam);
GeographicHeightCoordinate origin;
if (!TryCreateGeographicHeightCoordinate(latParam.Selection, lonParam.Selection, hOriginParam.Selection, OgcAngularUnit.DefaultRadians, outputUnit, out origin))
{
origin = GeographicHeightCoordinate.Zero;
}
double viewHeight;
if (!TryGetDouble(hViewParam.Selection, outputUnit, out viewHeight))
{
viewHeight = Double.NaN;
}
var spheroidIn = opData.StepParams.ConvertRelatedInputSpheroidUnit(outputUnit);
if (null == spheroidIn)
{
return(null);
}
ITransformation transformation = new VerticalPerspective(origin, viewHeight, spheroidIn);
return(new StaticCoordinateOperationCompiler.StepCompilationResult(
opData.StepParams,
outputUnit,
transformation
));
}
private static StaticCoordinateOperationCompiler.StepCompilationResult CreateVerticalPerspective(TransformationCompilationParams opData)
{
Contract.Requires(opData != null);
var outputUnit = opData.StepParams.RelatedOutputCrsUnit;
if (null == outputUnit)
return null;
var latParam = new KeywordNamedParameterSelector("LAT");
var lonParam = new KeywordNamedParameterSelector("LON");
var hOriginParam = new KeywordNamedParameterSelector("H", "HEIGHT", "ORIGIN");
var hViewParam = new KeywordNamedParameterSelector("H", "HEIGHT", "VIEW");
opData.ParameterLookup.Assign(latParam, lonParam, hOriginParam, hViewParam);
GeographicHeightCoordinate origin;
if (!TryCreateGeographicHeightCoordinate(latParam.Selection, lonParam.Selection, hOriginParam.Selection, OgcAngularUnit.DefaultRadians, outputUnit, out origin))
origin = GeographicHeightCoordinate.Zero;
double viewHeight;
if (!TryGetDouble(hViewParam.Selection, outputUnit, out viewHeight))
viewHeight = Double.NaN;
var spheroidIn = opData.StepParams.ConvertRelatedInputSpheroidUnit(outputUnit);
if (null == spheroidIn)
return null;
ITransformation transformation = new VerticalPerspective(origin, viewHeight, spheroidIn);
return new StaticCoordinateOperationCompiler.StepCompilationResult(
opData.StepParams,
outputUnit,
transformation
);
}
