Public Sub RotateExample(ByVal e As PaintEventArgs)
    Dim myPen As New Pen(Color.Blue, 1)
    Dim myPen2 As New Pen(Color.Red, 1)

    ' Draw the rectangle to the screen before applying the transform.
    e.Graphics.DrawRectangle(myPen, 150, 50, 200, 100)

    ' Create a matrix and rotate it 45 degrees.
    Dim myMatrix As New Matrix
    myMatrix.Rotate(45, MatrixOrder.Append)

    ' Draw the rectangle to the screen again after applying the
    ' transform.
    e.Graphics.Transform = myMatrix
    e.Graphics.DrawRectangle(myPen2, 150, 50, 200, 100)
End Sub

' 导入命名空间
Imports System
Imports System.Windows.Forms
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Drawing.Text
Imports System.Drawing.Imaging

Public Class MainClass

  Shared Sub Main()
    Dim m As Matrix = New Matrix()
    m.Rotate(90, MatrixOrder.Append)
    m.Translate(7, 12, MatrixOrder.Append)
    Dim p() As Point = {New Point(20, 45)}

    Console.WriteLine(p.GetValue(0).ToString())

    m.TransformPoints(p)

    Console.WriteLine(p.GetValue(0).ToString())
  End Sub
  
End Class