我做了一個簡單的代碼，其中我用4個FastLines添加了4個圖表，每個fastline使用18000個點，使用表添加一個初始化值，並在更新了Series4的值之後。性能對於我正在繪製的數值有好處：
public Form1()
{
InitializeComponent();
InitializeChart();
}
// Steema.TeeChart.Styles.FastLine Series1;
Timer timer1, timer2,timer3, timer4;
Random r;
DateTime dt;
DateTime[] Xvalues1;
double[] Yvalues1;
Steema.TeeChart.TChart tChart1, tChart2, tChart3,tChart4;
private void InitializeChart()
{
tChart1 = new TChart();
tChart2 = new TChart();
tChart3 = new TChart();
tChart4 = new TChart();
this.Controls.Add(tChart1);
this.Controls.Add(tChart2);
this.Controls.Add(tChart3);
this.Controls.Add(tChart4);
//Initialize Locations and size
this.Width = 908;
this.Height = 600;
//Location
tChart1.Left = 12;
tChart1.Top = 53;
tChart2.Left = 468;
tChart2.Top = 53;
tChart3.Left = 12;
tChart3.Top = 318;
tChart4.Left = 468;
tChart4.Top = 318;
//Size
tChart1.Width = 373;
tChart1.Height = 236;
tChart2.Width = 373;
tChart2.Height = 236;
tChart3.Width = 373;
tChart3.Height = 236;
tChart4.Width = 373;
tChart4.Height = 236;
tChart1.Aspect.View3D = false;
tChart2.Aspect.View3D = false;
tChart3.Aspect.View3D = false;
tChart4.Aspect.View3D = false;
tChart1.Legend.Visible = false;
tChart2.Legend.Visible = false;
tChart3.Legend.Visible = false;
tChart4.Legend.Visible = false;
tChart1.Panel.Gradient.Visible = false;
tChart2.Panel.Gradient.Visible = false;
tChart3.Panel.Gradient.Visible = false;
tChart4.Panel.Gradient.Visible = false;
tChart1.Axes.Bottom.AxisPen.Visible = false;
tChart2.Axes.Bottom.AxisPen.Visible = false;
tChart3.Axes.Bottom.AxisPen.Visible = false;
tChart4.Axes.Bottom.AxisPen.Visible = false;
tChart1.Axes.Left.AxisPen.Visible = false;
tChart2.Axes.Left.AxisPen.Visible = false;
tChart3.Axes.Left.AxisPen.Visible = false;
tChart4.Axes.Left.AxisPen.Visible = false;
//Series
tChart1.AutoRepaint = false;
tChart2.AutoRepaint = false;
tChart3.AutoRepaint = false;
tChart4.AutoRepaint = false;
for (int i = 0; i < 4; i++)
{
new Steema.TeeChart.Styles.FastLine(tChart1.Chart);
new Steema.TeeChart.Styles.FastLine(tChart2.Chart);
new Steema.TeeChart.Styles.FastLine(tChart3.Chart);
new Steema.TeeChart.Styles.FastLine(tChart4.Chart);
tChart1[i].XValues.DateTime=true;
tChart2[i].XValues.DateTime = true;
tChart3[i].XValues.DateTime = true;
tChart4[i].XValues.DateTime = true;
InitialDataSeries(tChart1[i]);
InitialDataSeries(tChart2[i]);
InitialDataSeries(tChart3[i]);
InitialDataSeries(tChart4[i]);
}
//Axes labels
tChart1.Axes.Bottom.Labels.DateTimeFormat = "dd/MM";
tChart1.Axes.Bottom.Labels.Angle = 90;
tChart2.Axes.Bottom.Labels.DateTimeFormat = "dd/MM";
tChart2.Axes.Bottom.Labels.Angle = 90;
tChart3.Axes.Bottom.Labels.DateTimeFormat = "dd/MM";
tChart3.Axes.Bottom.Labels.Angle = 90;
tChart4.Axes.Bottom.Labels.DateTimeFormat = "dd/MM";
tChart4.Axes.Bottom.Labels.Angle = 90;
tChart1.AutoRepaint = true;
tChart2.AutoRepaint = true;
tChart3.AutoRepaint = true;
tChart4.AutoRepaint = true;
tChart1.Refresh();
tChart2.Refresh();
tChart3.Refresh();
tChart4.Refresh();
//Timer
timer1 = new Timer();
timer1.Start();
timer1.Interval = 100;
timer1.Tick += new EventHandler(timer1_Tick);
}
void timer1_Tick(object sender, EventArgs e)
{
//See the chart data updated.
tChart1[0].Visible = false;
tChart1[1].Visible = false;
tChart1[2].Visible = false;
PopulateSeries(tChart1[3]);
PopulateSeries(tChart2[3]);
PopulateSeries(tChart3[3]);
PopulateSeries(tChart4[3]);
}
private void PopulateSeries(Steema.TeeChart.Styles.Series Series1)
{
r = new Random();
dt = DateTime.Now;
tChart1.AutoRepaint = false;
tChart2.AutoRepaint = false;
tChart3.AutoRepaint = false;
tChart4.AutoRepaint = false;
// show only 50 points - delete the rest
while (Series1.Count > 10000)
{
Series1.Delete(0);
}
if (Series1.Count > 10000)
{
Series1.Delete(0);
}
else
{
for (int t = 0; t < 100; t++)
{
Series1.Add(dt, r.Next(1000));
dt = dt.AddSeconds(15);
}
}
tChart1.AutoRepaint = true;
tChart2.AutoRepaint = true;
tChart3.AutoRepaint = true;
tChart4.AutoRepaint = true;
tChart1.Refresh();
tChart2.Refresh();
tChart3.Refresh();
tChart4.Refresh();
}
private void InitialDataSeries(Steema.TeeChart.Styles.Series Series1)
{
//Arrays
dt = DateTime.Now;
r = new Random();
Xvalues1 = new DateTime[18000];
Yvalues1 = new double[18000];
(Series1 as Steema.TeeChart.Styles.FastLine).DrawAllPoints = false;
for (int j = 0; j < 18000; j++)
{
Xvalues1[j] = dt;
dt = dt.AddSeconds(15);
Yvalues1[j] = r.Next(1000);
}
Series1.Add(Xvalues1, Yvalues1);
}
您能告訴我們它是否對您有幫助嗎？另一方面，如果我的代碼無法幫助您，我建議您使用TeeChartDirect2D，這對於DSP實時應用程序所需的高速數據吞吐量來說非常理想。請參閱白皮書Boosting graphics-rendering performance in Windows Forms，以獲得更詳細的信息。
謝謝，
謝謝，但我不能讓其他3行看不見。我希望能夠以最小最大值和理想範圍實時查看第四條線的位置。所以在使它們看不見之後，它以極佳的速度繪製。但我不能隱藏其他3行。所以，我不能做fastline.visible = false和fastline.active = false。令人驚訝的活躍也隱藏了快速線。所以看起來像主動和可見服務於相同的目的。有沒有辦法可以使用fastline.draw（），fastline.repaint（），fastline.refreshseries（）更新第4行？ – 2013-03-21 04:52:03
我也嘗試下載direct2d演示。 graphicscontrol.dll缺少winforms應用程序。搜索了zip文件，但沒有像那樣的dll文件，也就是說Matrix3x2不存在。 – 2013-03-21 05:28:40
也是private void PopulateSeries（Steema.TeeChart.Styles.Series Series1）和private void InitialDataSeries（Steema.TeeChart.Styles.Series Series1）。不應該是Steema.TeeChart.Styles.Fastline，而不是Steema.TeeChart.Styles.Series – 2013-03-21 05:48:16