Analyzer.VertexDegreeCalculator.TryCalculateGraphMetrics C# (CSharp) Method

        public Boolean TryCalculateGraphMetrics
            (IGraph graph, BackgroundWorker backgroundWorker, out VertexMetricBase graphMetrics)
        {
            Debug.Assert(graph != null);

            IVertexCollection oVertices = graph.Vertices;
            Int32 iVertices = oVertices.Count;
            Int32 iCalculations = 0;

            VertexDegrees oVertexIDDictionary = new VertexDegrees(iVertices);

            graphMetrics = oVertexIDDictionary;

            foreach (IVertex oVertex in oVertices)
            {
                // Check for cancellation and report progress every
                // VerticesPerProgressReport calculations.

                if (
                    (iCalculations % VerticesPerProgressReport == 0)
                    &&
                    !ReportProgressAndCheckCancellationPending(
                        iCalculations, iVertices, backgroundWorker)
                    )
                {
                    return (false);
                }

                Int32 iInDegree, iOutDegree;

                CalculateVertexDegrees(oVertex, out iInDegree, out iOutDegree);

                oVertexIDDictionary.Add(oVertex.ID, iInDegree, iOutDegree);

                iCalculations++;
            }

            return (true);
        }