绘制zedgraph方向

Question

我尝试在温度测量系统中用C＃制作zedgraph绘图仪系统，并成功绘制串行数据图。但方向不是线性的，它意味着较低的温度不会在第一次放置，而是在最后时间放置。这是我的代码：

private void initCurves()
    {
        PointPairList list1 = new PointPairList();
        PointPairList list2 = new PointPairList();
        PointPairList list3 = new PointPairList();

        Samples = 10000;
        NoOfCurves = 3;

        // Samples = int.Parse(XTextBox.Text);
        // NoOfCurves = (int)NoOfDataNumericUpDown.Value;

        for (int j = 0; j < NoOfCurves; j++)
        {
            PointPairList tempppl = new PointPairList();

            for (double x = 0; x < Samples; x++)
            {
                tempppl.Add(x, -1);
            }

            list1.Add(tempppl);
            list2.Add(tempppl);
            list3.Add(tempppl);

        }

        // Generate a red curve with diamond
        // symbols, and "Porsche" in the legend
        ZedGraphControl1.GraphPane.AddCurve("Thermocouple #1",list1, Color.Red, SymbolType.None);
        ZedGraphControl1.GraphPane.AddCurve("Thermocouple #2", list2, Color.Blue, SymbolType.None);
        ZedGraphControl1.GraphPane.AddCurve("Thermocouple #3", list3, Color.Brown, SymbolType.None);

        // Tell ZedGraph to refigure the
        // axes since the data have changed
        ZedGraphControl1.AxisChange();
    }


private void Form1_Load(object sender, EventArgs e) {


        //Array of baud rates
        string[] baudrates = {"75", "110", "134", "150", "300", "600", "1200", "1800",
                             "2400", "4800", "7200", "9600", "14400", "19200", "38400",
                             "57600", "115200", "128000"};


        //Set data source for baud rate combobox
        COMBaudComboBox.DataSource = baudrates;


        // Set the titles and axis labels
        GraphPane myPane = ZedGraphControl1.GraphPane;

        //Set title axis labels and font color
        myPane.Title.Text = "Temperature vs. Time";
        myPane.Title.FontSpec.FontColor = Color.Black;

        myPane.XAxis.Title.Text = "Time (Sec)";
        myPane.XAxis.Title.FontSpec.FontColor = Color.Black;

        myPane.YAxis.Title.Text = "Temperature (Celcius)";
        myPane.YAxis.Title.FontSpec.FontColor = Color.Black;

        //Fill the chart background with a color gradient
        myPane.Fill = new Fill(Color.FromArgb(255, 255, 245), Color.FromArgb(255, 255, 190), 90F);
        myPane.Chart.Fill = new Fill(Color.FromArgb(255, 255, 245), Color.FromArgb(255, 255, 190), 90F);

        myPane.XAxis.Scale.FontSpec.IsAntiAlias = true;
        myPane.YAxis.Scale.FontSpec.IsAntiAlias = true; 

        //Add grid lines to the plot and make them gray
        myPane.XAxis.MajorGrid.IsVisible = true;
        myPane.XAxis.MajorGrid.Color = Color.LightGray;

        myPane.YAxis.MajorGrid.IsVisible = true;
        myPane.YAxis.MajorGrid.Color = Color.LightGray;

        //Enable point value tooltips and handle point value event
        ZedGraphControl1.IsShowPointValues = true;
       ZedGraphControl1.PointValueEvent += new ZedGraphControl.PointValueHandler(PointValueHandler);

        //Show the horizontal scroll bar
        ZedGraphControl1.IsShowHScrollBar = true;

        //Automatically set the scrollable range to cover the data range from the curves
        ZedGraphControl1.IsAutoScrollRange = true;

        //Add 10% to scale range
        ZedGraphControl1.ScrollGrace = 0.1;

        //Horizontal pan and zoom allowed
        ZedGraphControl1.IsEnableHPan = true;
        ZedGraphControl1.IsEnableHZoom = true;

        //Vertical pan and zoom not allowed
        ZedGraphControl1.IsEnableVPan = false;
        ZedGraphControl1.IsEnableVZoom = false;

        //Set the initial viewed range
       // ZedGraphControl1.GraphPane.XAxis.Scale.MinAuto = true;
       // ZedGraphControl1.GraphPane.XAxis.Scale.MaxAuto = true;


        //Let Y-Axis range adjust to data range
        ZedGraphControl1.GraphPane.IsBoundedRanges = true;

        //Set the margins to 10 points
        myPane.Margin.All = 10;

        //Hide the legend
        // myPane.Legend.IsVisible = false;

        //Set start point for XAxis scale
        myPane.XAxis.Scale.BaseTic = 0;

        //Set start point for YAxis scale
        myPane.YAxis.Scale.BaseTic = 0;

        //Set max/min XAxis range
        myPane.XAxis.Scale.Min = 0.0;
       // myPane.XAxis.Scale.Max = 7200;
        myPane.XAxis.Scale.MinorStep = 5;
        myPane.XAxis.Scale.MajorStep = 10;


        //Set max/min YAxis range
        myPane.YAxis.Scale.Min = 0;
        myPane.YAxis.Scale.Max = 400;
        myPane.YAxis.Scale.MinorStep = 5;
        myPane.YAxis.Scale.MajorStep = 10;
        RollingPointPairList list = new RollingPointPairList(7400);

        //Initially, a curve is added with no data points (list is empty)
        //Color is red, and there will be no symbols
        //LineItem curve = myPane.AddCurve("Temperature", list, Color.Red, SymbolType.None);

        //Scale the axis
       myPane.AxisChange();

        // Set defaults for UI

        SpeedNumericUpDown.Value = Properties.Settings.Default.SpeedSetting;
        NoOfDataNumericUpDown.Value = Properties.Settings.Default.DataSetsSetting;
        XTextBox.Text = Properties.Settings.Default.XScaleSetting;
        YTextBox.Text = Properties.Settings.Default.YScaleSetting;
        SeriesLineSizeNumericUpDown.Value = Properties.Settings.Default.LineSizeSetting;

        // Fill COMPortComboBox with available COM ports
        string[] aosPorts = SerialPort.GetPortNames();
        bool foundCOMPortFlag = false;
        COMPortComboBox.DataSource = aosPorts;
        foreach (string port in aosPorts) {
            if (port == Properties.Settings.Default.COMPortSetting) {
                COMPortComboBox.Text = port;
                foundCOMPortFlag = true;
            }
        }

        // We didn't find the COM port, so set to COM1
        if (foundCOMPortFlag == false) {
            COMPortComboBox.SelectedIndex = 0;
        }
    }

我可以将绘图图形方向更改为线性吗？我怎么能这样做？

感谢您的帮助

问候

Nanang

The Picture of Result Plot graph and wish plot graph