Question

wince中用vb.net绘制实时曲线

使用vs2008中的vb.net开发基于wince的应用程序，如何实现对串口采集过来的数据绘制实时曲线。

若以下回答无法解决问题，邀请你更新回答

Answer 1

拖一个PictureBox1控件
创建一个Paint事件。在事件中加入
Private Sub PictureBox1_Paint(ByVal sender As Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles PictureBox1.Paint
' Create pens.
Dim redPen As New Pen(Color.Red, 3)
Dim greenPen As New Pen(Color.Green, 3)

' Create points that define curve.
Dim point1 As New Point(50, 50)
Dim point2 As New Point(100, 25)
Dim point3 As New Point(200, 5)
Dim point4 As New Point(250, 50)
Dim point5 As New Point(300, 100)
Dim point6 As New Point(350, 200)
Dim point7 As New Point(250, 250)
Dim curvePoints As Point() = {point1, point2, point3, point4, _
point5, point6, point7}

' Draw lines between original points to screen.
e.Graphics.DrawLines(redPen, curvePoints)

' Draw curve to screen.
e.Graphics.DrawCurve(greenPen, curvePoints)
End Sub

得到数据后，改point的数据。然后PictureBox1.Refresh()就行了