SKCanvas.DrawCircle（）绘制正方形

Question

我使用OpenGL在.NetCore中设置了SkiaSharp。如果我调用 DrawCircle（）函数，它将渲染正方形，这看起来很奇怪。我的代码如下：

using (SKPaint paint = new SKPaint {
    Style = SKPaintStyle.Stroke,
    Color = SKColors.Red,
    StrokeWidth = 25,
}) {
    canvas.RotateDegrees( 2 );
    canvas.DrawCircle( info.Width / 2, info.Height / 2, 100, paint );
    paint.Style = SKPaintStyle.Fill;
    paint.Color = SKColors.Blue;
    canvas.DrawCircle( info.Width / 2, info.Height / 2, 75, paint );

    canvas.RotateDegrees( 20 );
    canvas.DrawCircle( info.Width / 2, info.Height / 2, 50, paint );
    paint.Style = SKPaintStyle.Fill;
    paint.Color = SKColors.Yellow;
    canvas.DrawCircle( info.Width / 2, info.Height / 2, 25, paint );

}

然后，屏幕如下所示：

为什么有正方形？

Answer 1

所以我不小心通过添加抗锯齿来解决此问题。

using (SKPaint paint = new SKPaint {
     ...,
     ...,
     IsAntialias = true
}) {
     ...
}