ConvertToSummaryString()
        {
            AssertValid();

            SentenceConcatenator oSentenceConcatenator =
                new SentenceConcatenator();

            AddSummarySentence(m_oEdgeColorResults, "edge colors",
                               oSentenceConcatenator);

            AddSummarySentence(m_oEdgeWidthResults, "edge widths",
                               oSentenceConcatenator);

            AddSummarySentence(m_oEdgeAlphaResults, "edge opacities",
                               oSentenceConcatenator);

            AddSummarySentence(m_oVertexColorResults, "vertex colors",
                               oSentenceConcatenator);

            AddSummarySentence(m_oVertexRadiusResults, "vertex sizes",
                               oSentenceConcatenator);

            AddSummarySentence(m_oVertexAlphaResults, "vertex opacities",
                               oSentenceConcatenator);

            return(oSentenceConcatenator.ConcatenateSentences());
        }
    ConvertToSummaryString()
    {
        AssertValid();

        SentenceConcatenator oSentenceConcatenator =
            new SentenceConcatenator();

        AddSummarySentence(m_oEdgeColorResults, "edge colors",
            oSentenceConcatenator);

        AddSummarySentence(m_oEdgeWidthResults, "edge widths",
            oSentenceConcatenator);

        AddSummarySentence(m_oEdgeAlphaResults, "edge opacities",
            oSentenceConcatenator);

        AddSummarySentence(m_oVertexColorResults, "vertex colors",
            oSentenceConcatenator);

        AddSummarySentence(m_oVertexRadiusResults, "vertex sizes",
            oSentenceConcatenator);

        AddSummarySentence(m_oVertexAlphaResults, "vertex opacities",
            oSentenceConcatenator);

        return ( oSentenceConcatenator.ConcatenateSentences() );
    }