Scale Diamond : Scale « 2D Graphics « VB.Net Tutorial

1. VB.Net Tutorial
2. 2D Graphics
3. Scale

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

public class TranslateTransformScaleTransform
   public Shared Sub Main
        Application.Run(New Form1)
   End Sub
End class

public class Form1
  Inherits System.Windows.Forms.Form

  Protected Overrides Sub OnPaint(ByVal e As PaintEventArgs)
        DrawDiamond(e.Graphics)


        e.Graphics.TranslateTransform(-125, -125, MatrixOrder.Append)

        e.Graphics.ScaleTransform(2, 2, MatrixOrder.Append)

        e.Graphics.TranslateTransform(125, 125, MatrixOrder.Append)

        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

  Public Sub New()
    MyBase.New()
    Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
    Me.ClientSize = New System.Drawing.Size(292, 273)
    Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen

  End Sub

End Class

17.77.Scale
	17.77.1.	Scale(1,1)
	17.77.2.	Scale(1,3)
	17.77.3.	Scale(3, 1)
	17.77.4.	Scale(-1, -1) (2)
	17.77.5.	Scale Diamond
	17.77.6.	Scale first and then Transform