在 C# 的 Bitmap 上畫線的時候，避免線條、連接處有缺角或破碎的方法

public void BitmapDrawLine(Bitmap bM, Point sPoint, Point ePoint, Color lineColor,float lineThickness)
{

    Graphics g = Graphics.FromImage(bM);

    Pen myPen = new Pen(lineColor, lineThickness);    

    myPen.DashStyle = System.Drawing.Drawing2D.DashStyle.Solid;

    // 設定線條的端點及連接樣式

    myPen.SetLineCap(System.Drawing.Drawing2D.LineCap.Round,

    System.Drawing.Drawing2D.LineCap.Round,

    System.Drawing.Drawing2D.DashCap.Round);

    g.DrawLine(myPen, sPoint, ePoint);

}