Combine TranslateTransform and ScaleTransform

Imports System
Imports System.Windows.Forms
Imports System.Drawing.Text
Imports System.Drawing
Imports System.Drawing.Drawing2D

Public Class MainClass
    
    Shared Sub Main(ByVal args As String())
        Dim myform As Form = New Form1()
        Application.Run(myform)
    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
        ' Draw the original diamond.
        DrawDiamond(e.Graphics)
        ' Translate 
        e.Graphics.TranslateTransform(-50, -50, MatrixOrder.Append)
        ' Scale by a factor of 2.
        e.Graphics.ScaleTransform(2, 2, MatrixOrder.Append)
        ' Translate the center back 
        e.Graphics.TranslateTransform(50, 50, MatrixOrder.Append)

        ' Draw the diamond.
        DrawDiamond(e.Graphics)
    End Sub

    Private Sub DrawDiamond(ByVal gr As Graphics)
        Dim pts() As Point = { _
            New Point(75, 125), _
            New Point(125, 75), _
            New Point(175, 125), _
            New Point(125, 175) _
        }
        gr.DrawPolygon(Pens.Black, pts)
    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
            components.Dispose()
        End If
        MyBase.Dispose(disposing)
    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.SuspendLayout()
        '
        'Form1
        '
        Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
        Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
        Me.ClientSize = New System.Drawing.Size(500, 500)
        Me.Name = "Form1"
        Me.Text = "Title"
        Me.ResumeLayout(False)

    End Sub

End Class

Related examples in the same category

1.	TranslateTransform Demo
2.	TranslateTransform: Draw Ellipse Path
3.	Path Transform Matrix Demo
4.	Transform Demo

Combine TranslateTransform and ScaleTransform : Transform « 2D « VB.Net

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