C# 使用GDI 绘制三角形、圆形后并填充颜色

C# 使用GDI 绘制三角形、圆形后并填充颜色

private void DrawBoneAgeAndAgeHeightPoint(Graphics g, System.Drawing.PointF AgeHeight_Point, System.Drawing.PointF BoneAgePoint)
{
    System.Drawing.SolidBrush innerBrush = new System.Drawing.SolidBrush(System.Drawing.Color.FromArgb(255, 0, 0, 139));
    System.Drawing.Pen m_ControlPen = new System.Drawing.Pen(System.Drawing.Color.FromKnownColor(KnownColor.Blue));
    int Control_PointSize = 8;
    float bmd_Width = 4f;
    float r = 6f;
    
    //三角形
    if (BoneAgePoint.X != 0 && BoneAgePoint.Y != 0)
    {
        BoneAgePoint.X = BoneAgePoint.X ;
        BoneAgePoint.Y = BoneAgePoint.Y;
        PointF[] point = new PointF[3];
        for (int i = 0; i < 3; i++)
        {
            point[i] = new PointF((float)(r * Math.Cos((i * 2 * Math.PI / 3) - Math.PI / 2) + BoneAgePoint.X), (float)(r * Math.Sin(i * 2 * Math.PI / 3 - Math.PI / 2)) + BoneAgePoint.Y);
        }
        g.FillPolygon(innerBrush, point);
    }
    
    //圆形
    if (AgeHeight_Point.X != 0 && AgeHeight_Point.Y != 0)
    {
        AgeHeight_Point.X = AgeHeight_Point.X;
        AgeHeight_Point.Y = AgeHeight_Point.Y;
        g.DrawEllipse(m_ControlPen, AgeHeight_Point.X - bmd_Width, AgeHeight_Point.Y - bmd_Width, Control_PointSize, Control_PointSize);
        g.FillEllipse(innerBrush, AgeHeight_Point.X - bmd_Width, AgeHeight_Point.Y - bmd_Width, Control_PointSize, Control_PointSize);
    }
}