System.Drawing.Drawing2D.GraphicsPath.Transform C# (CSharp) Method

        public void Transform(Matrix matrix)
        {
            matrix.TransformPoints (points);
        }

    //</snippet3>

    // The following code example demonstrates using a Matrix
    // and the GraphicsPath.Transform method to rotate a string.
    // This example is designed to be used with Windows Forms.
    // Create a form and paste the following code into it. Call the
    // DrawVerticalStringFromBottomUp method in the form's Paint
    // event-handling method, passing e as PaintEventArgs.
    //<snippet5>
    public void DrawVerticalStringFromBottomUp(PaintEventArgs e)
    {
        // Create the string to draw on the form.
        string text = "Can you read this?";

        // Create a GraphicsPath.
        System.Drawing.Drawing2D.GraphicsPath path =
            new System.Drawing.Drawing2D.GraphicsPath();

        // Add the string to the path; declare the font, font style, size, and
        // vertical format for the string.
        path.AddString(text, this.Font.FontFamily, 1, 15,
                       new PointF(0.0F, 0.0F),
                       new StringFormat(StringFormatFlags.DirectionVertical));

        // Declare a matrix that will be used to rotate the text.
        System.Drawing.Drawing2D.Matrix rotateMatrix =
            new System.Drawing.Drawing2D.Matrix();

        // Set the rotation angle and starting point for the text.
        rotateMatrix.RotateAt(180.0F, new PointF(10.0F, 100.0F));

        // Transform the text with the matrix.
        path.Transform(rotateMatrix);

        // Set the SmoothingMode to high quality for best readability.
        e.Graphics.SmoothingMode =
            System.Drawing.Drawing2D.SmoothingMode.HighQuality;

        // Fill in the path to draw the string.
        e.Graphics.FillPath(Brushes.Red, path);

        // Dispose of the path.
        path.Dispose();
    }