Smrf.NodeXL.Visualization.Wpf.VertexDrawer.GetLabelPadding C# (CSharp) Method

    GetLabelPadding
    (
        Double dLabelFontSize
    )
    {
        Debug.Assert(dLabelFontSize >= 0);
        AssertValid();

        // Make the padding larger for smaller fonts than for larger fonts.
        // These linear-interpolation points were selected to satisfy some
        // padding specifications in a NodeXL design document.

        const Double FontSizeA = 14.0;
        const Double FontSizeB = 39.4;
        const Double LabelPaddingA = 3.0;
        const Double LabelPaddingB = 5.0;

        Double dLabelPadding =
            LabelPaddingA + (dLabelFontSize - FontSizeA) *
            (LabelPaddingB - LabelPaddingA) / (FontSizeB - FontSizeA);

        dLabelPadding = Math.Max(0, dLabelPadding);

        return (dLabelPadding * m_dGraphScale);
    }