C＃将多个图像绘制成没有平铺的图片框

Question

我试图用点绘制多个（20个小图像或更多）到单个图片框，但是当我这样做时，它复制了图片框每行上的首行。 我到处搜索，并尝试了很多次，以得到这个权利，但我不能弄明白，任何人都可以帮助指向正确的方向吗？

我想要做到的是：

1. 图像1图像2图像3图像4图像1
2. 图像2图像4图像1图像3图像3
3. 图像4 image7图像2图像1 image6
4. 图像3 image7图像3 image7 image6

但是我得到的是：

1. 图像1图像2图像3图像4图像1
2. 图像1图像2图像3图像4图像1
3. 图像1图像2图像3图像4图像1
4. 图像1图像2图像3图像4图像1

（当然没有数） 这里是我正在使用的代码

private void Form_Load(object sender, EventArgs e) 
{ 
    Image[] Files = new Image[7]; 
    Bitmap a = new Bitmap(@"C:\icons\icon1.png"); 
    Files[0] = new Bitmap(a, 80, 80); 
    image1 = Files[0]; 
    Bitmap b = new Bitmap(@"C:\icons\icon2.png"); 
    Files[1] = new Bitmap(b, 80, 80); 
    image2 = Files[1]; 
    Bitmap c = new Bitmap(@"C:\icons\icon3.png"); 
    Files[2] = new Bitmap(c, 80, 80); 
    image3 = Files[2]; 
    Bitmap d = new Bitmap(@"C:\icons\icon4.png"); 
    Files[3] = new Bitmap(d, 80, 80); 
    image4 = Files[3]; 
    Bitmap h = new Bitmap(@"C:\icons\icon5.png"); 
    Files[4] = new Bitmap(h, 80, 80); 
    image5 = Files[4]; 
    Bitmap f = new Bitmap(@"C:\icons\icon6.png"); 
    Files[5] = new Bitmap(f, 80, 80); 
    image6 = Files[5]; 
    Bitmap g = new Bitmap(@"C:\icons\icon7.png"); 
    Files[6] = new Bitmap(g, 80, 80); 
    image7 = Files[6]; 

    pictureBox1.BackgroundImage = CombineBitmap(Files); 
} 

public static System.Drawing.Bitmap CombineBitmap(Image[] files) 
    { 
     List<System.Drawing.Bitmap> images = new List<System.Drawing.Bitmap>(); 
     System.Drawing.Bitmap finalImage = null; 

     try 
     { 
      int width = 0; 
      int height = 0; 

      foreach (Image image in files) 
      { 
       System.Drawing.Bitmap bitmap = new System.Drawing.Bitmap(image); 

       width += bitmap.Width; 
       height = bitmap.Height > height ? bitmap.Height : height; 

       images.Add(bitmap); 
      } 

      finalImage = new System.Drawing.Bitmap(width, height); 

      using (System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(finalImage)) 
      { 
       g.Clear(System.Drawing.Color.Gray); // Change this to whatever you want the background color to be, you may set this to Color.Transparent as well 

       int offset = 15; 
       Point p1 = new Point(0, 0); 
       Point p2 = new Point(80, 0); 
       Point p3 = new Point(160, 0); 
       Point p4 = new Point(240, 0); 
       Point p5 = new Point(320, 0); 

       Point p6 = new Point(0, 80); 
       Point p7 = new Point(80, 80); 
       Point p8 = new Point(160, 80); 
       Point p9 = new Point(240, 80); 
       Point p10 = new Point(320, 80); 

       Point p11 = new Point(0, 160); 
       Point p12 = new Point(80, 160); 
       Point p13 = new Point(160, 160); 
       Point p14 = new Point(240, 160); 
       Point p15 = new Point(320, 160); 

       Point p16 = new Point(0, 240); 
       Point p17 = new Point(80, 240); 
       Point p18 = new Point(160, 240); 
       Point p19 = new Point(240, 240); 
       Point p20 = new Point(320, 240); 


       g.DrawImage(image1, p1); 
       g.DrawImage(image2, p2); 
       g.DrawImage(image3, p3); 
       g.DrawImage(image4, p4); 
       g.DrawImage(image1, p5); 


       g.DrawImage(image2, p6); 
       g.DrawImage(image4, p7); 
       g.DrawImage(image1, p8); 
       g.DrawImage(image3, p9); 
       g.DrawImage(image3, p10); 

       g.DrawImage(image4, p11); 
       g.DrawImage(image7, p12); 
       g.DrawImage(image2, p13); 
       g.DrawImage(image1, p14); 
       g.DrawImage(image6, p15); 

       g.DrawImage(image3, p16); 
       g.DrawImage(image7, p17); 
       g.DrawImage(image3, p18); 
       g.DrawImage(image7, p19); 
       g.DrawImage(image6, p20); 

       } 

      return finalImage; 
     } 
     catch (Exception ex) 
     { 
      if (finalImage != null) 
       finalImage.Dispose(); 

      throw ex; 
     } 
     finally 
     { 

      foreach (System.Drawing.Bitmap image in images) 
      { 
       image.Dispose(); 
      } 
     } 
    } 

Answer 1

The siz您的finalImage位图的太小，只允许一行图像。然后，PictureBox控件将平铺单行图像，为您提供所看到的图像。

您正在以80像素宽80像素高的方块绘制图像。因此，位图应足够宽以容纳80 * numColumns像素，并且足够高以容纳80 * numRows像素。

既然你有5列4行，使用：

finalImage = new System.Drawing.Bitmap(400, 320);