Smrf.NodeXL.ExcelTemplate.OneDoubleGraphMetricCalculatorBase.TryCalculateGraphMetrics C# (CSharp) Method

    TryCalculateGraphMetrics
    (
        IGraph graph,
        CalculateGraphMetricsContext calculateGraphMetricsContext,

        Algorithms.OneDoubleGraphMetricCalculatorBase
            oneDoubleGraphMetricCalculator,

        GraphMetrics graphMetric,
        String columnName,
        Double columnWidthChars,
        String style,
        out GraphMetricColumn [] graphMetricColumns
    )
    {
        Debug.Assert(graph != null);
        Debug.Assert(calculateGraphMetricsContext != null);
        Debug.Assert(oneDoubleGraphMetricCalculator != null);
        Debug.Assert( !String.IsNullOrEmpty(columnName) );

        Debug.Assert(columnWidthChars == ExcelTableUtil.AutoColumnWidth ||
            columnWidthChars > 0);

        AssertValid();

        graphMetricColumns = new GraphMetricColumn[0];

        if ( !calculateGraphMetricsContext.ShouldCalculateGraphMetrics(
            graphMetric) )
        {
            return (true);
        }

        // Calculate the graph metrics for each vertex using the
        // OneDoubleGraphMetricCalculatorBase object, which knows nothing about
        // Excel.

        Dictionary<Int32, Double> oGraphMetrics;

        if ( !oneDoubleGraphMetricCalculator.TryCalculateGraphMetrics(graph,
            calculateGraphMetricsContext.BackgroundWorker, out oGraphMetrics) )
        {
            // The user cancelled.

            return (false);
        }

        // Transfer the graph metrics to an array of GraphMetricValue objects.

        List<GraphMetricValueWithID> oGraphMetricValues =
            new List<GraphMetricValueWithID>();

        foreach (IVertex oVertex in graph.Vertices)
        {
            // Try to get the row ID stored in the worksheet.

            Int32 iRowID;

            if ( TryGetRowID(oVertex, out iRowID) )
            {
                oGraphMetricValues.Add( new GraphMetricValueWithID(
                    iRowID, oGraphMetrics[oVertex.ID] ) );
            }
        }

        graphMetricColumns = new GraphMetricColumn [] {
            new GraphMetricColumnWithID( WorksheetNames.Vertices,
                TableNames.Vertices, columnName, columnWidthChars,
                NumericFormat, style, oGraphMetricValues.ToArray()
                ) };

        return (true);
    }