Example #1
0
        public static async Task <DataHandler> CreateAsync(IStorageContext dataContext)
        {
            var    storageDefinition = dataContext.StorageDefinition;
            string latAxisName       = IntegratorsFactoryHelpers.AutodetectLatName(storageDefinition);
            string lonAxisName       = IntegratorsFactoryHelpers.AutodetectLonName(storageDefinition);

            var timeAxisDetection = StepFunctionAutoDetectHelper.SmartDetectAxis(dataContext);
            var result            = timeAxisDetection as StepFunctionAutoDetectHelper.AxisFound;

            if (result == null)
            {
                throw new InvalidOperationException("Time axes detection failed");
            }


            var latAxisTask = dataContext.GetDataAsync(latAxisName);
            var lonAxisTask = dataContext.GetDataAsync(lonAxisName);
            var timeAxis    = await dataContext.GetDataAsync(result.AxisName);

            var timeGroupCalc = StepFunctionAutoDetectHelper.ConstructStatisticsCalculator(result.AxisKind, timeAxis, result.BaseOffset);

            var latAxis     = await latAxisTask;
            var latStatCalc = new CoveredPointsStatistics(latAxis);
            var lonAxis     = await lonAxisTask;
            var lonStatCalc = new CoveredPointsStatistics(lonAxis);

            var baseUncertaintyProvider           = new NoUncertaintyEvaluator();
            var coverageCheckUncertaintyEvaluator = new GridUncertaintyConventionsDecorator(baseUncertaintyProvider, latStatCalc, lonStatCalc, timeGroupCalc);
            var variablePresenceCheckEvaluator    = new VariablePresenceCheckDecorator(dataContext.StorageDefinition, coverageCheckUncertaintyEvaluator);

            var gridAggregator       = new GridModeAggregator(dataContext, timeGroupCalc, latStatCalc, lonStatCalc, true);
            var clusteringAggregator = new GridClusteringDecorator(dataContext.StorageDefinition, gridAggregator, timeGroupCalc, latStatCalc, lonStatCalc);

            return(new DataHandler(dataContext, variablePresenceCheckEvaluator, clusteringAggregator));
        }
Example #2
0
        public static async Task <DataHandler> CreateAsync(IStorageContext dataContext)
        {
            var storageDefinition = dataContext.StorageDefinition;
            var latIntegratorTask = LinearIntegratorsFactory.SmartConstructAsync(dataContext, IntegratorsFactoryHelpers.AutodetectLatName(storageDefinition));
            var lonIntegratorTask = LinearIntegratorsFactory.SmartConstructAsync(dataContext, IntegratorsFactoryHelpers.AutodetectLonName(storageDefinition));

            var timeAxisDetection = StepFunctionAutoDetectHelper.SmartDetectAxis(dataContext);
            var result            = timeAxisDetection as StepFunctionAutoDetectHelper.AxisFound;

            if (result == null)
            {
                throw new InvalidOperationException("Time axes detection failed");
            }

            var timeAxis = await dataContext.GetDataAsync(result.AxisName);

            if (timeAxis.Length < 2)
            {
                throw new InvalidOperationException("time axis length must be at least 2");
            }
            if (timeAxis.GetType().GetElementType() != typeof(Int16))
            {
                throw new InvalidOperationException("NDVI Yearly data handler now supports only Int16 time axis");
            }
            Int16[] typedTimeAxis = (Int16[])timeAxis;
            Int16   step          = (Int16)(typedTimeAxis[typedTimeAxis.Length - 1] - typedTimeAxis[typedTimeAxis.Length - 2]);

            Int16[] extendedAxis = typedTimeAxis.Concat(new Int16[] { (Int16)(typedTimeAxis[typedTimeAxis.Length - 1] + step) }).ToArray();

            var latIntegrator  = await latIntegratorTask;
            var lonIntegrator  = await lonIntegratorTask;
            var timeIntegrator = StepFunctionAutoDetectHelper.ConstructAverager(result.AxisKind, extendedAxis, result.BaseOffset);

            var baseUncertaintyProvider           = new NoUncertaintyEvaluator();
            var coverageCheckUncertaintyEvaluator = new GridUncertaintyConventionsDecorator(baseUncertaintyProvider, latIntegrator, lonIntegrator, timeIntegrator);
            var variablePresenceCheckEvaluator    = new VariablePresenceCheckDecorator(dataContext.StorageDefinition, coverageCheckUncertaintyEvaluator);

            var gridAggregator       = new GridMeanAggregator(dataContext, timeIntegrator, latIntegrator, lonIntegrator, true);
            var clusteringAggregator = new GridClusteringDecorator(dataContext.StorageDefinition, gridAggregator, timeIntegrator, latIntegrator, lonIntegrator);

            return(new DataHandler(dataContext, variablePresenceCheckEvaluator, clusteringAggregator));
        }