vb点虐 连续绘制曲线图不消失

您好，您是想问vb点虐 连续绘制曲线图不消失怎么办？b点虐 连续绘制曲线图不消失的解决办法如下：

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1、首先必须创建bitmap,关联到picturebox1.image上。

2、再在picturebox1.image上创建Graphics,再进行作图。即可显示线图。

请问怎么样用VB点虐 (C#)在Excel上绘制曲线图？

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vb点虐 绘制实时温度曲线

这个要用GDI+画。要看你点虐 版本。

以下是VS2005中的一段代码。

Me.PictureBox1.Height = 450

Me.PictureBox1.Width = 880

Dim gr As Graphics '定义画布

Dim bp As New Bitmap(880, 450) '定义位图,并进行赋值

Dim p As New Pen(Color.Black) '定义画笔

p.Width = 2 '宽度2

p.DashStyle = Drawing2D.DashStyle.Solid '样式直线

PictureBox1.Image = bp

gr = Graphics.FromImage(PictureBox1.Image)

gr.FillRectangle(Brushes.White, New Rectangle(0, 0, PictureBox1.Width, PictureBox1.Height))

gr.DrawLine(p, a, b, a, .Height - b) '绘制纵坐标

gr.DrawLine(p, a, .Height - b, .Width - a, .Height - b) '绘制横坐标

VB.NET 实时曲线

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

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