C# implements dynamically generating text and pictures on the base map

/// <summary>
/// Draw a picture of the specified path on the base map/// </summary>
/// <param name="g">Paintboard example</param>/// <param name="path">Picture path</param>/// <param name="totalWidth">Total length of the painting area</param>/// <param name="totalHeight">Total Height of Painting Area</param>/// <param name="px">First point X coordinate</param>/// <param name="py">First point Y coordinate</param>  private void FontPic(ref Graphics g, string path, int totalWidth, int totalHeight, int px, int py)
  {
   if ((path))
   {
    var pImg = (path);
    // If the picture is larger than the canvas area, it will be reduced    if (totalHeight &lt;  &amp;&amp; totalWidth &lt; )
    {
     Image newPic = GetReducedImage(pImg, totalWidth, totalHeight);
     if (newPic != null)
     {
      DrawPic(ref g, totalWidth, totalHeight, px, py, newPic);
     }
    }
    else if (totalHeight &lt;  &amp;&amp; totalWidth &gt;= )
    {
     Image newPic = GetReducedImage(pImg, , totalHeight);
     if (newPic != null)
     {
      DrawPic(ref g, totalWidth, totalHeight, px, py, newPic);
     }
    }
    else if (totalHeight &gt;=  &amp;&amp; totalWidth &lt; )
    {
     Image newPic = GetReducedImage(pImg, totalWidth, );
     if (newPic != null)
     {
      DrawPic(ref g, totalWidth, totalHeight, px, py, newPic);
     }
    }
    else
    {
     DrawPic(ref g, totalWidth, totalHeight, px, py, pImg);
    }
   }
  }
  /// &lt;summary&gt;
  /// Draw pictures on the picture  /// &lt;/summary&gt;
  /// <param name="g">Paintboard example</param>  /// <param name="totalWidth">Total length of the painting area</param>  /// <param name="totalHeight">Total Height of Painting Area</param>  /// <param name="px">First point X coordinate</param>  /// <param name="py">First point Y coordinate</param>  /// <param name="pImg">Example of the picture to be drawn</param>  private void DrawPic(ref Graphics g, int totalWidth, int totalHeight, int px, int py, Image pImg)
  {
   px += GetValue(totalWidth, );
   py += GetValue(totalHeight, );
 
   (new Bitmap(pImg, new Size(GetSize(totalWidth, ), GetSize(totalHeight, ))),
    new Rectangle(px, py, totalWidth, totalHeight),
    0, 0, totalWidth, totalHeight, );
  }
  /// &lt;summary&gt; 
  /// Generate thumbnail overload method 1, return the image object of the thumbnail  /// &lt;/summary&gt; 
  /// <param name="width">Thread of thumbnail</param>  /// <param name="height">Height of thumbnail</param>  /// <returns> Image object for thumbnail</returns>  public Image GetReducedImage(Image resourceImage, int width, int height)
  {
   try
   {
    Image data = null;
    //Initialize a new instance of Bitmap class with the specified size and format    using (Bitmap bitmap = new Bitmap(width, height, PixelFormat.Format32bppArgb))
    {
     //Create a new Graphics object from the specified Image object     using (Graphics graphics = (bitmap))
     {
      //Clear the entire drawing surface and fill it with transparent background color      //();
      //Draw the original image object at the specified position and according to the specified size      (resourceImage, new Rectangle(0, 0, width, height));
     }
     data = new Bitmap(bitmap);
    }
    return data;
   }
   catch (Exception e)
   {
    throw e;
   }
  }
  /// &lt;summary&gt;
  /// Compare two values ​​and get the given value (judgment whether it is out of bounds)  /// &lt;/summary&gt;
  /// <param name="total">Total length</param>  /// <param name="width">Specify length</param>  /// &lt;returns&gt;&lt;/returns&gt;
  public int GetSize(int total, int width)
  {
   if (total &gt; width)
   {
    return width;
   }
   else
   {
    return total;
   }
  }
  /// &lt;summary&gt;
  /// More passed value is calculated to obtain a new value (calculate point coordinates)  /// &lt;/summary&gt;
  /// <param name="total">Total length</param>  /// <param name="width">Specify length</param>  /// &lt;returns&gt;&lt;/returns&gt;
  private int GetValue(int total, int width)
  {
   return (total - width) / 2;
  }
  /// &lt;summary&gt;
  /// Draw text on the picture  /// &lt;/summary&gt;
  /// <param name="g">Image object</param>  /// <param name="pointX">Text x-coordinates</param>  /// <param name="pointY">text y coordinates</param>  /// <param name="word">Text content</param>  /// <param name="textWidth">Text width</param>  /// <param name="textHeight">text height</param>  private static void DrawStringWord(Graphics g, int pointX, int pointY, string word, int textWidth, int textHeight, int fontSize = 30)
  {
   Font font = new Font("Microsoft Yahei", fontSize, ());
   RectangleF textArea = new RectangleF(pointX, pointY, textWidth, textHeight);
   Brush brush = new SolidBrush();
   (word, font, brush, textArea);
  }