如何将形状从 Directx 转换为 gdi+使用 c#

发布于 2024-08-19 04:32:50 字数 184 浏览 3 评论 0原文

我使用 directx 在 c# 中绘制圆。我喜欢使用 GDI 在 c# 中绘制具有相同尺寸的圆。这意味着我喜欢将该圆从 directx 转换为 GDI。有任何身体对我有帮助吗？请为我提供答案。我该怎么做。有任何可用的算法吗...... 我还给出了圆心的输入是（x，y）这种点格式。但在gdi中它是像素格式。那么我如何将directx点转换为gdi+像素

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无可置疑 2024-08-26 04:32:50

以下是来自 MSDN 的链接，介绍了Windows 窗体中的图形和绘图。您可能需要类似的东西：

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);

}

之后您可能想研究双缓冲技术，一些链接：

Here is a link from MSDN that introduces Graphics and Drawing in Windows Forms. And it's likely that you will need something similar to:

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);

}

After that you might want to look into double-buffering techniques, a few links :

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