C# XDate.CompareTo方法代码示例

        // Simple plot with interpolated difference curve
        private void CreateGraph_DifferencePlot( ZedGraphControl z1 )
        {
            GraphPane myPane = z1.GraphPane;

            // Generate the first data set
            PointPairList list1 = new PointPairList();
            for ( int i = 0; i < 13; i++ )
            {
                double x = i + 11.0;
                double y = 150.0 * ( 1.0 + Math.Sin( i * 0.3 ) );
                list1.Add( x, y );
            }

            // Generate a second data set that is unrelated to the first
            PointPairList list2 = new PointPairList();
            for ( int i = 0; i < 15; i++ )
            {
                double x = i * 1.2 + 10.0;
                double y = 250.0 * ( 1.0 + Math.Sin( x * 0.5 ) );

                list2.Add( x, y );
            }

            // Make sure the data are sorted and monotonically increasing
            list1.Sort();
            list2.Sort();
            // Get the lower and upper limit of the data
            // This code can throw an exception if either list is empty
            double xMin = Math.Min( list1[0].X, list2[0].X );
            double xMax = Math.Max( list1[list1.Count - 1].X, list2[list2.Count - 1].X );

            // Create a new list that will hold the difference points
            PointPairList diffList = new PointPairList();

            // Select the number of points for the new difference curve
            // This is completely arbitrary, but more points will make it smoother in the
            // case of SplineInterpolation
            const int count = 50;

            // Loop for each data point to be created in the new PointPairList
            for ( int i=0; i<count; i++ )
            {
                // Calculated X values are evenly spaced
                double x = xMin + (double) i * ( xMax - xMin ) / count;

                // Use spline interpolation to create the Y values for the new curve
                // Note that this allows extrapolation beyond the actual data available
                // A tension value of 0.5 is used, but anywhere between 0 and 1 is reasonable
                //double y = list1.InterpolateX( x );
                double y1 = list1.InterpolateX( x );
                double y2 = list2.SplineInterpolateX( x, 0.5 );

                // Add the new Point to the list taking the difference between the Y values
                // If either value is Missing, it means that a point was extrapolated beyond
                // the available data, which is not allowed for SplineInterpolateX()
                // This won't happen with InterpolateX, since it allows extrapolation
                if ( y1 == PointPair.Missing || y2 == PointPair.Missing )
                    diffList.Add( x, PointPair.Missing, PointPair.Missing );
                else
                    diffList.Add( x, y1 - y2, (y1-y2) > 0 ? 1 : 0 );
            }

            // Create the three curves -- two datasets, plus a difference curve
            LineItem diffCurve = myPane.AddCurve( "diff", diffList, Color.Red, SymbolType.None );
            LineItem myCurve1 = myPane.AddCurve( "curve", list1, Color.Blue, SymbolType.Diamond );
            LineItem myCurve2 = myPane.AddCurve( "curve 2", list2, Color.Green, SymbolType.Circle );
            Color[] colors = { Color.Red, Color.Green };
            diffCurve.Line.Fill = new Fill( colors, 90 );
            diffCurve.Line.Fill.RangeMin = 0;
            diffCurve.Line.Fill.RangeMax = 1;
            diffCurve.Line.Fill.Type = FillType.GradientByZ;

            //diffCurve.Line.GradientFill = new Fill( colors, 90 );
            //diffCurve.Line.GradientFill.RangeMin = -100;
            //diffCurve.Line.GradientFill.RangeMax = 200;

            //diffCurve.Line.IsOptimizedDraw = true;

            // Add some "pretty" stuff (optional)
            myCurve1.Symbol.Fill = new Fill( Color.White );
            myCurve2.Symbol.Fill = new Fill( Color.White );
            diffCurve.Line.Width = 2.0f;
            //diffCurve.Symbol.Fill = new Fill( Color.White );
            myPane.Title.Text = "Interpolated Data Curve";
            myPane.XAxis.Title.Text = "Period";
            myPane.YAxis.Title.Text = "Response";
            myPane.Legend.FontSpec.Size = 14;
            myPane.Fill = new Fill( Color.WhiteSmoke, Color.Lavender, 0F );
            myPane.Chart.Fill = new Fill( Color.FromArgb( 255, 255, 245 ),
               Color.FromArgb( 255, 255, 190 ), 90F );

            XDate xx = new XDate( 2007, 11, 9 );
            XDate x2 = new XDate( 2007, 11, 9 );
            XDate x3 = new XDate( 2007, 11, 9, 1, 1, 1 );

            object junk = new object();

            int i1 = xx.CompareTo( xx );
            int i2 = xx.CompareTo( x2 );
//.........这里部分代码省略.........