圖形顯示函數

前段時間寫的一個圖形比例顯示的函數,代碼很簡單!

        private void DrawGraphic(double UnReadyNum,double ReadyNum,double FinishNum)
        {
            double iPercentAngle;

            iPercentAngle = 360 / (UnReadyNum + ReadyNum + FinishNum);

            //生成一個Bitmap
            Bitmap objBitmap;
            objBitmap = new Bitmap(450,400,PixelFormat.Format64bppPArgb);


            //生成一個Graphics,同時清除Bitmap的背景色為White.
            Graphics objGraphics;
            objGraphics = Graphics.FromImage(objBitmap);
            objGraphics.Clear(Color.White);

            //畫圖
            objGraphics.FillEllipse(Brushes.Red,120,10,200,200);
            objGraphics.FillPie(Brushes.Orange,120,10,200,200,0,(float)(ReadyNum*iPercentAngle));
            objGraphics.FillPie(Brushes.Green,120,10,200,200,(float)(ReadyNum*iPercentAngle),(float)(FinishNum*iPercentAngle));

            objBitmap.Save(Response.OutputStream,ImageFormat.Gif);
        }