关于图像绘制并输出的问题，大家帮忙看看

       我现在在做个绘图软件，恩，就是那种读取主板文件，并绘制电路元件图的那种软件，我现在要实现的就是打印这个功能。

我不太会，老是会出问题。

       代码：

    

/*********文件读取**********/
        private string[] allfile;//定义放多个文件的数组
    
        ClassBDR bdr = new ClassBDR();
        float R = 1.0f;//定义圆的半径
        private void 打开文件ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            OpenFileDialog dlgOpenFile = new OpenFileDialog();
 
            dlgOpenFile.Filter = "BDR文件|*.BDR";
            dlgOpenFile.Title = "打开文件";
            dlgOpenFile.Multiselect = true;//选取多个档案
 
            try
            {
                if (dlgOpenFile.ShowDialog() == DialogResult.OK)
                {
                    allfile = dlgOpenFile.FileNames;
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
 
            Pen pen2 = new Pen(Color.Blue, 0.01f);
            Graphics g = Graphics.FromHwnd(pictureBox1.Handle);
            //改变坐标系统的原点，把坐标原点设置在pictrue画面的中心点
            g.TranslateTransform((float)(pictureBox1.Width / 2 / 96), (float)(pictureBox1.Height / 2 / 96));
            g.PageUnit = GraphicsUnit.Inch;//指定英尺作为测量单位
            g.PageScale = 1; //指定绘图单位和书面单位之间的缩放
            
            for (int i = 0; i < allfile.Length; i++)
            {
              
                //把文件中的所有行读入数组
                string[] listfield = File.ReadAllLines(allfile[i]);
 
                //定义一个数组用来存储坐标点
                string[] getXY;
                //划分数组
                if (listfield == null)
                    return;
                else //if(dlgOpenFile.Filter=="*.BDR")
                {
                    for (int j = 0; j < listfield.Length; j++)
                    {
                        if (listfield[j].Substring(0, 1) == "T")
                            continue;
                        else if (listfield[j].Substring(0, 1) == "M")
                            continue;
                        else
                        {
 
                            getXY = listfield[j].Split('Y');
 
 
                            bdr.PointX = getXY[0].Substring(1);
                            bdr.PointY = getXY[1];
                            //画图
                            g.DrawEllipse(pen2, Convert.ToSingle(bdr.PointX) / 10000.0f, Convert.ToSingle(bdr.PointY) / 10000.0f, (float)(R / 25.4f), (float)(R / 25.4f));
                        }
                    }
                  
                }
                
            }
            //释放资源
            g.Dispose();
        }
        /*********执行**********/
    
        //打印
        private void btnPrint_Click(object sender, EventArgs e)
        {
 
        }
        //打印预览
        private void btnPp_Click(object sender, EventArgs e)
        {
            this.dlgPp.Document = Pd;
            this.dlgPp.ShowDialog();
        }
        //打印设置
        private void btnPs_Click(object sender, EventArgs e)
        {
 
        }
       
       
        private void Form1_Load(object sender, EventArgs e)
        {
            //初始化画图界面
            FormatPbox();
        }
        public void FormatPbox()//初始化画图界面
        {
            pictureBox1.Image = new Bitmap(pictureBox1.Width, pictureBox1.Height);
            Pen pen1 = new Pen(Color.Red, (float)0.5);
            Graphics g = Graphics.FromImage(pictureBox1.Image);
 
            g.DrawLine(pen1, 0, pictureBox1.Height / 2, pictureBox1.Width, pictureBox1.Height / 2);
            g.DrawLine(pen1, pictureBox1.Width / 2, 0, pictureBox1.Width / 2, pictureBox1.Height);
            g.Dispose();
        }
 主要问题出现在下面这段代码中的红色字体部分：
        private Image images;
        private void Pd_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e)
        {
            images = this.pictureBox1.Image;
            //获取打印机纸张的宽度和高度
            int printWidth = Pd.DefaultPageSettings.PaperSize.Width;
            int printHeight = Pd.DefaultPageSettings.PaperSize.Height;
            //判断图片的宽度是否小于等于纸张的宽度
            if (Convert.ToUInt32(pictureBox1.Image.Width) <= printWidth)
            {
                //如果图片的宽度小于等于纸张的宽度，则让图片处在纸张的中间
                float x = (printWidth - Convert.ToUInt32(pictureBox1.Image.Width)) / 2;
                float y = (printHeight - Convert.ToUInt32(pictureBox1.Image.Height)) / 2;
                //使用DrawImage方法重新绘制图片
                e.Graphics.DrawImage(Image.FromFile(images), x, y, Convert.ToUInt32(pictureBox1.Image.Width), Convert.ToUInt32(pictureBox1.Image.Height));
            }
            else
            {
                //判断图片的宽度是否大于纸张的宽度
                if (Convert.ToUInt32(pictureBox1.Image.Width) > printWidth)
                {
                    //宽度大于高度则让图片旋转90度垂直显示
                    Bitmap bitmap = (Bitmap)Bitmap.FromFile(images);
                    bitmap.RotateFlip(RotateFlipType.Rotate90FlipXY);
                    //实例化对象
                    PictureBox pb = new PictureBox();
                    //设置Image属性
                    pb.Image = bitmap;
                    //计算图片高度占纸张宽度的比例
                    Single a = printWidth / Convert.ToSingle(pictureBox1.Image.Height);
                    //重新绘制图片
                    e.Graphics.DrawImage(pb.Image, 0, 0, Convert.ToSingle(pictureBox1.Image.Height) * a, Convert.ToSingle(pictureBox1.Image.Width) * a);
                }
                else
                {
                    //计算图片高度占纸张宽度的比例
                    Single a = printWidth / Convert.ToSingle(pictureBox1.Image.Width);
                    //重新绘制
                    e.Graphics.DrawImage(Image.FromFile(images), 0, 0, Convert.ToSingle(pictureBox1.Image.Width) * a, Convert.ToSingle(pictureBox1.Image.Height) * a);
                }
            }
        }
 

 

错误提示：

錯誤 1 最符合的多載方法 'System.Drawing.Image.FromFile(string)' 有一些無效的引數 E:/个人信息/画圆/画圆/Form1.cs 184 38 画圆
錯誤 2 引數 '1': 無法從 'System.Drawing.Image' 轉換為 'string' E:/个人信息/画圆/画圆/Form1.cs 184 53 画圆
錯誤 3 最符合的多載方法 'System.Drawing.Image.FromFile(string)' 有一些無效的引數 E:/个人信息/画圆/画圆/Form1.cs 192 45 画圆
錯誤 4 引數 '1': 無法從 'System.Drawing.Image' 轉換為 'string' E:/个人信息/画圆/画圆/Form1.cs 192 61 画圆
錯誤 5 最符合的多載方法 'System.Drawing.Image.FromFile(string)' 有一些無效的引數 E:/个人信息/画圆/画圆/Form1.cs 208 42 画圆
錯誤 6 引數 '1': 無法從 'System.Drawing.Image' 轉換為 'string' E:/个人信息/画圆/画圆/Form1.cs 208 57 画圆

 

请大家帮忙看看！谢谢！