vb.net绘图幕布 vb绘图控件

VB.net中如何画图?VB.net与VB不同 。
VB.net已经有专门绘图的类 。
可以定义笔刷然后用Drawing类中的方法绘制 。
Private Sub DrawEllipse()
Dim myPen As New System.Drawing.Pen(System.Drawing.Color.Red)
Dim formGraphics as System.Drawing.Graphics
formGraphics = Me.CreateGraphics()
formGraphics.DrawEllipse(myPen, New Rectangle(0,0,200,300))
myPen.Dispose()
formGraphics.Dispose()
End Sub
Private Sub DrawRectangle()
Dim myPen As New System.Drawing.Pen(System.Drawing.Color.Red)
Dim formGraphics as System.Drawing.Graphics
formGraphics = Me.CreateGraphics()
formGraphics.DrawRectangle(myPen, New Rectangle(0,0,200,300))
myPen.Dispose()
formGraphics.Dispose()
End Sub
vb.net2010中如何在窗口中建立画布'绘制图形的三步曲
'1,获得一个Graphics对象
Dim MyGraphics As Graphics
MyGraphics = Me.CreateGraphics
'2 , 定义一个Pen对象,用于绘制图形(轮廓线)
Dim MyPen As New Pen(Color.Black)
【vb.net绘图幕布 vb绘图控件】'3,定义一个Brush对象,用于填充图形(如果需要填充的话)
Dim MyBrush As New SolidBrush(Color.Orange)
MyGraphics.FillEllipse(MyBrush, 200, 200, 100, 100)'绘制一个实心圆 , 该圆在:直线x=200,y=200 , x=200 100,y=200 100所划的矩形区域内
MyGraphics.DrawEllipse(MyPen, 200, 200, 100, 100)'绘制一个空心圆,该圆在:直线x=200,y=200,x=200 100,y=200 100所划的矩形区域内
vb.net桌面中bitmap类如何直接绘制到屏幕?可以直接显示vb.net绘图幕布的 。vb.net绘图幕布你看下面的示例,使用vb.net画的齿轮:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
b = New Bitmap(PictureBox1.Width, PictureBox1.Height)
g = Graphics.FromImage(b)
'g.RotateTransform(90)
g.Clear(Color.White)
g.TranslateTransform(PictureBox1.Width / 2, PictureBox1.Height / 2)
g.ScaleTransform(1, -1)
'g.SmoothingMode = Drawing2D.SmoothingMode.AntiAlias
g.SmoothingMode = Drawing2D.SmoothingMode.HighQuality
DrawCL(g, New PointF(Val(TextBox1.Text), Val(TextBox2.Text)), Val(TextBox3.Text), Val(TextBox4.Text), Val(TextBox5.Text), Val(TextBox6.Text), Val(TextBox7.Text), Val(TextBox8.Text), Val(TextBox9.Text))
DrawCL(g, New PointF(Val(TextBox18.Text), Val(TextBox17.Text)), Val(TextBox16.Text), Val(TextBox15.Text), Val(TextBox14.Text), Val(TextBox13.Text), Val(TextBox12.Text), Val(TextBox11.Text), Val(TextBox10.Text))
PictureBox1.Image = b
End Sub
如何使用vb.net调用cad进行绘图vb.net绘图幕布你去查查书吧vb.net绘图幕布 , 书上挺详细vb.net绘图幕布的 , 在这说不好说 , vb.net绘图幕布你先在项目里引用 。然后 Dim acadapp As AcadApplication Dim acaddoc As AcadDocument On Error Resume Next AcadApp = GetObject(, "AutoCAD.Application") If Err.Number Then Err.Clear() AcadApp = CreateObject("AutoCAD.Application") If Err.Number Then MsgBox("不能运行AutoCAD,请检查是否安装vb.net绘图幕布了AutoCAD") Exit Sub End If End If AcadApp.Visible = True '界面可视
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