/// <summary>/// 导出为 Emf 或 Wmf 文件/// </summary>/// <param name="filePath">文件路径</param>/// <returns>是否成功</returns>private bool Export(string filePath){try{Bitmap bmp = new Bitmap(220,220);Graphics gs = Graphics.FromImage(bmp);Metafile mf  = new Metafile(filePath,gs.GetHdc());Graphics g = Graphics.FromImage(mf);Draw(g);g.Save();g.Dispose();mf.Dispose();return true;}catch{return false;}}/// <summary>/// 绘制图形/// </summary>/// <param name="g">用于绘图的Graphics对象</param>private void Draw(Graphics g){HatchBrush hb = new HatchBrush(HatchStyle.LightUpwardDiagonal, Color.Black, Color.White);g.FillEllipse(Brushes.Gray,10f,10f,200,200);g.DrawEllipse(new Pen(Color.Black,1f),10f,10f,200,200);g.FillEllipse(hb,30f,95f,30,30);g.DrawEllipse(new Pen(Color.Black,1f),30f,95f,30,30);g.FillEllipse(hb,160f,95f,30,30);g.DrawEllipse(new Pen(Color.Black,1f),160f,95f,30,30);g.FillEllipse(hb,95f,30f,30,30);g.DrawEllipse(new Pen(Color.Black,1f),95f,30f,30,30);g.FillEllipse(hb,95f,160f,30,30);g.DrawEllipse(new Pen(Color.Black,1f),95f,160f,30,30);g.FillEllipse(Brushes.Blue,60f,60f,100,100);g.DrawEllipse(new Pen(Color.Black,1f),60f,60f,100,100);g.FillEllipse(Brushes.BlanchedAlmond,95f,95f,30,30);g.DrawEllipse(new Pen(Color.Black,1f),95f,95f,30,30);g.DrawRectangle(new Pen(System.Drawing.Brushes.Blue,0.1f),6,6,208,208);g.DrawLine(new Pen(Color.Black,0.1f),110f,110f,220f,25f);g.DrawString("剖面图",new Font("宋体",9f),Brushes.Green,220f,20f);
}