The production of real-time dynamic line chart of host computer

As shown in the graph, he will update the graph in real time according to the data returned, and adjust the display range dynamically.

Production method:

First place a chart control, referencing the namespace

Using System.Windows.Forms.DataVisualization.Charting;

The following is the initialization code

InitializeComponent ();

Set the style of the curve
Series Series = Chart1. Series[0];
Draw the spline curve (Spline)
series. ChartType = Seriescharttype.fastline;
Line width 2 pixel
series. BorderWidth = 2;
Color of the line: Red
series. Color = System.Drawing.Color.Red;
The text on the Diagram
series. LegendText = "Temperature";

Set the display range
ChartArea ChartArea = Chart1. Chartareas[0];
chartArea.AxisX.Minimum = 0;
ChartArea.AxisX.Maximum = ten;
ChartArea.AxisY.Minimum = -5d;
ChartArea.AxisY.Maximum = 45d;

Chart1. Chartareas[0]. AxisX.ScrollBar.IsPositionedInside = false;//refers to whether the scroll bar is in the chart area or outside the chart area
Chart1. Chartareas[0]. AxisX.ScrollBar.Enabled = true;

To achieve dynamic display, you need to set a global variable, such as Xpos, to start with a value of 0, each receiving a data, call

Series1. POINTS.ADDXY (horizontal axis, ordinate);
To increase the number of new points

Meanwhile, the horizontal axis plus 1

xpos++;

The following statement dynamically adjusts the number of points in the field of vision

Chart1. Chartareas[0]. AxisX.ScaleView.Size = xpos;