如何将形状从Directx转换为gdi +使用c＃

Question

我使用directx.i在c＃中绘制圆形，就像使用GDI在c＃中绘制具有相同尺寸的圆一样。这意味着我喜欢将该圆形从directx转换为GDI。是任何身体的帮助me.plz为我提供了答案，我可以做到这一点。是任何可用的算法........ 而且我给圆的中心输入是（x， y）以这种格式。但在gdi中它是像素格式。因此，如何将directx点转换为gdi +像素

Answer 1

这是MSDN的一个链接，介绍Graphics and Drawing in Windows Forms。而且很可能，你将需要类似于：

public Form1() 
{ 
    InitializeComponent(); 

    this.Paint += new PaintEventHandler(Form1_Paint); 

    // This works too 
    //this.Paint += (_, args) => DrawCircle(args.Graphics); 
} 

void Form1_Paint(object sender, PaintEventArgs e) 
{ 
    DrawCircle(e.Graphics); 
} 

private void DrawCircle(Graphics g) 
{ 
    int x = 0; 
    int y = 0; 
    int radius = 50; 

    // The x,y coordinates here represent the upper left corner 
    // so if you have the center coordinates (cenX, cenY), you will have to 
    // substract radius from both cenX and cenY in order to represent the 
    // upper left corner. 

    // The width and height represents that of the bounding rectangle of the circle 
    g.DrawEllipse(Pens.Black, x, y, radius * 2, radius * 2); 

    // Use this instead if you need a filled circle 
    //g.FillEllipse(Brushes.Black, x, y, radius * 2, radius * 2); 

} 

之后，你可能要考虑双缓冲技术，几个环节：

• [SO] How to double buffer .NET controls on a form?
• [MSDN] Double Buffered Graphics
• [MSDN] Using Double Buffering