vb.net数据曲线图 vb绘制曲线

vb.net 绘制实时温度曲线

这个要用GDI+画。要看你.net版本。

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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绘制曲线图

。net 其实还是很好绘制图形的

你可以看下 Graphics 类

Dim d As New Bitmap(Me.Width, Me.Height) ‘一个图片吧

Dim g As Graphics = Graphics.FromImage(d)’绘制准备在这个图片是进行

然后就是你绘制的东西了

线就是 g.DrawLine()

圆弧度就用 g.DrawArc(Pens.Black, New Rectangle(0, 0, 400, 200), 0, 360)

复杂的就是 g.DrawBezier()

等如果你用的是 VS的编译上面都有详细的参数说明

Dim d As New Bitmap(Me.Width, Me.Height)

Dim g As Graphics = Graphics.FromImage(d)

g.DrawArc(Pens.Black, New Rectangle(0, 0, 200, 200), 0, 360)

g.DrawLine(Pens.Red, New Point(0, 0), New Point(200, 200))

g.DrawLines(Pens.Green, New Point() {New Point(0, 0), New Point(50, 40), New Point(50, 80), New Point(90, 70), New Point(100, 400)})

g.DrawBezier(Pens.Yellow, New Point(0, 100), New Point(0, 0), New Point(200, 0）， New Point(200, 200))

g.Dispose()

Me.BackgroundImage = d

vb.net 画二维数组的曲线图

Private Sub PictureBox2_Paint(sender As Object, e As PaintEventArgs) Handles PictureBox2.Paint

Dim points As New List(Of Point)

points.Add(New Point(0, 0))

points.Add(New Point(1, 10))

points.Add(New Point(3, 15))

points.Add(New Point(14, 0))

points.Add(New Point(20, 60))

points.Add(New Point(40, 20))

points.Add(New Point(70, 50))

e.Graphics.DrawCurve(Pens.Red, points.ToArray)

End Sub

供参考，points可设为全局变量，那样add随便在哪增加，想要看见看上去动态的图，那就在新增完n个后，继续增加n+1个之时，放弃points中的第一个。

请问怎么样用VB.net(C#)在Excel上绘制曲线图？

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