C# 多边形C上的Bresenhams

我需要从闭合的2d多边形中像素化/获取点。不是轮廓，而是用像素填充，体素以点的形式检索它们的位置。

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现在我已经有了线光栅化的C代码，有没有类似于多边形的方法？

只需使用绘制线绘制多边形即可。绘制多边形没有特定的算法

void DrawPoly(IEnumerable<Point> points)
{
    endpoints = points.Skip(1).Concat(new []{points.First()});
    pairs = points.Zip(endpoints, Tuple.Create);

    for(var pair in pairs)
    {
        DrawLine(pair.Item1, pair.Item2);
    }
}

void DrawLine(Point p1, Point p2)
{
    // Your Bresenham code here
}

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我怎样才能把矩阵和存储的填充像素连接起来

public static List<Tuple<int, int>> PixelizePolygon(PaintEventArgs e)
{
    List<Tuple<int,int>> pixels = new List<Tuple<int, int>>();

    // Create solid brush.
    SolidBrush blueBrush = new SolidBrush(Color.Blue);

    // Create points that define polygon.
    PointF point1 = new PointF(50.0F, 50.0F);
    PointF point2 = new PointF(100.0F, 25.0F);
    PointF point3 = new PointF(200.0F, 5.0F);
    PointF point4 = new PointF(250.0F, 50.0F);
    PointF point5 = new PointF(300.0F, 100.0F);
    PointF point6 = new PointF(350.0F, 200.0F);
    PointF point7 = new PointF(250.0F, 250.0F);
    PointF[] curvePoints = { point1, point2, point3, point4, point5, point6, point7 };

    // Define fill mode.
    FillMode newFillMode = FillMode.Winding;

    // Fill polygon to screen.
    e.Graphics.FillPolygon(blueBrush, curvePoints, newFillMode);



    return pixels;

} 

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也许我的问题不准确，我正在搜索如何用像素填充多边形并检索它们的位置。像体素化。听起来你在找一个。这里列出了一些。如果要提取所有点的列表，可以选择：1。绘制时存储点，或2。将坐标附加到图像矩阵，将其展平为1D列表，然后执行.Wherep=>p.PixelValue==0。如果我有一个简单的函数来绘制多边形并填充它，如何附加图像矩阵？下面是我的第二个要点。您需要指定宽度、高度和图像。因为看起来您使用的是RGB图像，所以最后一行变为filledPoints=flatten。其中p=>p.PixelValue.Blue==0。Selectp=>p.Coordinate；。等等，我有问题，因为我真的不想使用windows窗体进行此操作，只需提取有关点的信息。有没有其他方法可以使用此函数将多边形填充到屏幕。e、 Graphics.FillPolygonblueBrush、curvePoints、newFillMode；或者，我应该如何从此行继续或检索有关屏幕的信息？

public static List<Tuple<int, int>> PixelizePolygon(PaintEventArgs e)
{
    List<Tuple<int,int>> pixels = new List<Tuple<int, int>>();

    // Create solid brush.
    SolidBrush blueBrush = new SolidBrush(Color.Blue);

    // Create points that define polygon.
    PointF point1 = new PointF(50.0F, 50.0F);
    PointF point2 = new PointF(100.0F, 25.0F);
    PointF point3 = new PointF(200.0F, 5.0F);
    PointF point4 = new PointF(250.0F, 50.0F);
    PointF point5 = new PointF(300.0F, 100.0F);
    PointF point6 = new PointF(350.0F, 200.0F);
    PointF point7 = new PointF(250.0F, 250.0F);
    PointF[] curvePoints = { point1, point2, point3, point4, point5, point6, point7 };

    // Define fill mode.
    FillMode newFillMode = FillMode.Winding;

    // Fill polygon to screen.
    e.Graphics.FillPolygon(blueBrush, curvePoints, newFillMode);



    return pixels;

}