利用视觉提取轮廓保存为DXF图纸并界面显示

【实例简介】本实例程序利用视觉提取目标外形轮廓，再把轮廓保存为DXF图纸格式并显示到界面，视觉算法用的visionpro
【实例截图】vp提取轮廓保存DXF图纸.rar
【核心代码】using System.Windows.Forms;
using Cognex.VisionPro;
using Cognex.VisionPro.ImageFile;
using System.IO;
using Cognex.VisionPro.ToolBlock;
using System.Diagnostics;
using System.Drawing.Drawing2D;
using netDxf;
using netDxf.Blocks;
using netDxf.Collections;
using netDxf.Entities;
using netDxf.Header;
using netDxf.Objects;
using netDxf.Tables;
using netDxf.Units;
using Attribute = netDxf.Entities.Attribute;
using FontStyle = netDxf.Tables.FontStyle;
using Image = netDxf.Entities.Image;
using Point = netDxf.Entities.Point;
using Trace = netDxf.Entities.Trace;
namespace test326
{
    public partial class Form1 : Form
    {
        public static CogToolBlock Tool = new CogToolBlock();
        public Form1()
        {
            InitializeComponent();
            if (File.Exists((Application.StartupPath "\\vision2.vpp")))
            {
                Tool = CogSerializer.LoadObjectFromFile(Application.StartupPath "\\vision2.vpp") as CogToolBlock;
            }
            lineList.Clear();
            arcList.Clear();
            circleList.Clear();
            this.m_fratio = 1f;
            this.m11 = (this.m22 = 1f);
            this.m12 = (this.m21 = (this.m13 = (this.m23 = 0f)));
            xStart = xEnd = yStart = yEnd = 0;
            oldM13 = oldM23 = 0;
            this.pictureBox1.MouseWheel = new System.Windows.Forms.MouseEventHandler(this.picBox_MouseWheel);
            //cogRecordDisplay1.Image = GetImage(Application.StartupPath "\\test2.jpg");
        }
        private ICogImage GetImage(string imagepath)
        {
            if (!File.Exists(imagepath))
                return null;
            CogImageFile ImageFile1 = new CogImageFile();
            ICogImage Image;
            ImageFile1.Open(imagepath, CogImageFileModeConstants.Read);
            Image = ImageFile1[0];
            ImageFile1.Close();
            return Image;
        }

        public string OpenImageDialog()
        {
            using (OpenFileDialog openFileDialog = new OpenFileDialog())
            {
           
                openFileDialog.InitialDirectory = Application.StartupPath "\\"; // 设置初始目录
                openFileDialog.Filter = "图片文件(*.jpg;*.jpeg;*.gif;*.bmp;*.png)|*.jpg;*.jpeg;*.gif;*.bmp;*.png"; // 设置过滤选项
                openFileDialog.FilterIndex = 1;
                openFileDialog.RestoreDirectory = true;

                if (openFileDialog.ShowDialog() == DialogResult.OK) // 显示对话框
                {
                    // 用户选择了文件
                    return openFileDialog.FileName; // 返回文件路径
                }
            }

            return null; // 用户取消选择或关闭对话框

        }