Drawing code for simple shapes.

    private void Form1_Paint(object sender, System.Windows.Forms.PaintEventArgs e)

    {

      Matrix mx=new Matrix();

      mx.Translate(100,100);

      mx.Scale(100,100);

      mx.Rotate(30);

      e.Graphics.Transform=mx;

      e.Graphics.FillRectangle(Brushes.Red,-0.5f,-0.5f,1,1);

      mx=new Matrix();

      mx.Translate(200,100);

      mx.Scale(50,50);

      mx.Rotate(-20);

      e.Graphics.Transform=mx; 

      e.Graphics.FillRectangle(Brushes.Green,-0.5f,-0.5f,1,1);

    }

    Private Sub Form1_Paint(ByVal sender As Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles MyBase.Paint

      Dim mx As New Matrix

      mx.Translate(100, 100)

      mx.Scale(100, 100)

      mx.Rotate(30)

      e.Graphics.Transform = mx

      e.Graphics.FillRectangle(Brushes.Red, -0.5F, -0.5F, 1, 1)

      mx = New Matrix

      mx.Translate(200, 100)

      mx.Scale(50, 50)

      mx.Rotate(-20)

      e.Graphics.Transform = mx

      e.Graphics.FillRectangle(Brushes.Green, -0.5F, -0.5F, 1, 1)

    End Sub 'Form1_Paint