title: Draw Rotated Text around it's center with RotateTransform
body: <p>I have this code in C# to draw the rotated text</p>
  
  <pre><code>        Font font = new Font("Arial", 80, FontStyle.Bold);
          int nWidth = pictureBox1.Image.Width;
          int nHeight = pictureBox1.Image.Height;
  
          Graphics g = Graphics.FromImage(pictureBox1.Image);
  
          float w = nWidth / 2;
          float h = nHeight / 2;
  
          g.TranslateTransform(w, h);
          g.RotateTransform(90);
  
          PointF drawPoint = new PointF(w, h);
          g.DrawString("Hello world", font, Brushes.White, drawPoint);
  
          Image myImage=new Bitmap(pictureBox1.Image); 
  
          g.DrawImage(myImage, new Point(0, 0));
  
          pictureBox1.Image = myImage;
          pictureBox1.Refresh();
  </code></pre>
  
  <p>without rotate the text is drawn on the center of image, but with RotateTransform it goes half out of the image and the rotation center is way off.</p>
  
  <p>How can I rotate the text only arount it's center ? without affecting the text position on the image.</p>