Transformed Pen : Pen « 2D « VB.Net

Transformed Pen

Transformed Pen
Imports System.Drawing.Drawing2D
Imports System
Imports System.Drawing.Text
Imports System.Drawing
Imports System.Windows.Forms
Imports System.Math

Public Class MainClass

   Shared Sub Main()
       Dim form1 As Form = New Form1()
   End Sub 

End Class
Public Class Form1

    Private Sub Form1_Paint(ByVal sender As Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles MyBase.Paint
        Const Cx As Integer = 120
        Const Cy As Integer = 120
        Const R As Integer = 100
        Const PEN_WID As Integer = 10
        Dim the_pen As New Pen(Color.Black, PEN_WID)

        the_pen.ScaleTransform(1, 4, MatrixOrder.Append)
        the_pen.RotateTransform(45, MatrixOrder.Append)

        e.Graphics.SmoothingMode = SmoothingMode.AntiAlias

        e.Graphics.ScaleTransform(1, 4, MatrixOrder.Append)
        e.Graphics.RotateTransform(45, MatrixOrder.Append)

        For angle As Single = 0 To 2 * PI Step PI / 8
            Dim graphics_state As GraphicsState = e.Graphics.Save
            e.Graphics.TranslateTransform( _
                CSng(Cx + R * Cos(angle)), _
                CSng(Cy + R * Sin(angle)), _
            e.Graphics.DrawEllipse(Pens.White, -PEN_WID , -PEN_WID , PEN_WID, PEN_WID)
        Next angle
    End Sub
End Class
<Global.Microsoft.VisualBasic.CompilerServices.DesignerGenerated()> _
Partial Public Class Form1
    Inherits System.Windows.Forms.Form

    'Form overrides dispose to clean up the component list.
    <System.Diagnostics.DebuggerNonUserCode()> _
    Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
        If disposing AndAlso components IsNot Nothing Then
        End If
    End Sub

    'Required by the Windows Form Designer
    Private components As System.ComponentModel.IContainer

    'NOTE: The following procedure is required by the Windows Form Designer
    'It can be modified using the Windows Form Designer.  
    'Do not modify it using the code editor.
    <System.Diagnostics.DebuggerStepThrough()> _
    Private Sub InitializeComponent()
        Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
        Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
        Me.ClientSize = New System.Drawing.Size(200, 200)
        Me.Name = "Form1"
        Me.Text = ""

    End Sub

End Class


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