c# cad二次开发实现注记搜索跟扩展属性搜索，并点击即可定位到位置，添加了界面操作

c# cad二次开发实现注记搜索跟扩展属性搜索，并点击即可定位到位置，添加了界面操作
在这里插入图片描述

using Autodesk.AutoCAD.DatabaseServices;
using Autodesk.AutoCAD.EditorInput;
using Autodesk.AutoCAD.Geometry;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using Application = Autodesk.AutoCAD.ApplicationServices.Application;
using Autodesk.AutoCAD.Geometry;

namespace _7_属性查找
{
public partial class Form1selecte : Form
{
public Form1selecte()
{
InitializeComponent();
}
private static Dictionary table1 = new Dictionary(100);

private void treeView1_AfterSelect(object sender, TreeViewEventArgs e)
{

    }
1

private void listBox1_MouseDoubleClick(object sender, MouseEventArgs e)
{

    }
1

private void listView1_SelectedIndexChanged(object sender, EventArgs e)
{

    }
    /// 

    /// 搜索文本
    /// 
    /// 
    /// 
    private void button1_Click(object sender, EventArgs e)
    {
        table1.Clear();//清空全局变量
        try
        {
            listBox1.Items.Clear();//清空控件内容
            //启动图形事件
            Database db = HostApplicationServices.WorkingDatabase;
            Editor ed = Application.DocumentManager.MdiActiveDocument.Editor;
            //过滤选择条件
            string lay = comboBox1.Text;
            if (comboBox1.Text == "")
            {
                lay = "**";
            }
            TypedValue[] values = new TypedValue[]
            {
            new TypedValue((int)DxfCode.Start,"*text*"),//选择图形为圆
            new TypedValue(1, string.Format("*{0}*", textBox1.Text)),
            new TypedValue(8, string.Format("*{0}*", lay))
            };
            SelectionFilter filter = new SelectionFilter(values);
            PromptSelectionResult psr = ed.SelectAll(filter);
            //判断是否有选择到图形
            if (psr.Status == PromptStatus.OK)
            {
                SelectionSet sset = psr.Value;
                using (Transaction trans = db.TransactionManager.StartTransaction())
                {
                    int i = 0;
                    //循环每个要素
                    foreach (SelectedObject item in sset)
                    {
                        Entity ent = (Entity)item.ObjectId.GetObject(OpenMode.ForRead);
                        DBText textEntity = ent as DBText;
                        //获取文本内容
                        string sTxt = textEntity.TextString;
                        //获取文本坐标点
                        Point3d pos = textEntity.Position;
                        double x1 = ent.GeometricExtents.MinPoint.X;
                        double y1 = ent.GeometricExtents.MinPoint.Y;
                        double x2 = ent.GeometricExtents.MaxPoint.X;
                        double y2 = ent.GeometricExtents.MaxPoint.Y;
                        List list1 = new List();
                        list1.Add(x1);
                        list1.Add(y1);
                        list1.Add(x2);
                        list1.Add(y2);
                        //将坐标传递给全局变量
                        table1.Add(i, list1);
                        //文本内容写入界面控件中
                        listBox1.Items.Add(sTxt);
                        i++;
                    }
                    trans.Commit();//提交事务
                }

            }
        }
        catch (System.DivideByZeroException ex)
        {
            MessageBox.Show(ex.ToString());
        }

    }


    private void listBox1_SelectedIndexChanged(object sender, EventArgs e)
    {
        //获取选择的行数
        int index = listBox1.SelectedIndex;
        if (index > -1)
        {
            List list = new List();
            //获取选择行数的坐标
            list = table1[index];
            if (list.Count == 3)
            {
                double X = list[0];
                double Y = list[1];
                double H = list[2] * 2;
                //缩放到指定位置
                ZoomWindow(new Point3d(X - H, Y - H, 0), new Point3d(X + H, Y + H, 0));
            }
            else
            {
                double X1 = list[0];
                double Y1 = list[1];
                double X2 = list[2];
                double Y2 = list[3];
                //缩放到指定位置
                ZoomWindow(new Point3d(X1, Y1, 0), new Point3d(X2, Y2, 0));
            }
        }
    }
    /// 

    /// 缩放到指定位置
    /// 
    /// 第一个点
    /// 第二个点
    public static void ZoomWindow(Point3d pt1, Point3d pt2)
    {
        Editor ed = Application.DocumentManager.MdiActiveDocument.Editor;
        //创建一临时的直线用于获取两点表示的范围
        using (Line line = new Line(pt1, pt2))
        {
            //获取两点表示的范围
            Extents3d extents = new Extents3d(line.GeometricExtents.MinPoint, line.GeometricExtents.MaxPoint);
            //获取范围内的最小值点及最大值点
            Point2d minPt = new Point2d(extents.MinPoint.X, extents.MinPoint.Y);
            Point2d maxPt = new Point2d(extents.MaxPoint.X, extents.MaxPoint.Y);
            //得到当前视图
            ViewTableRecord view = ed.GetCurrentView();
            //设置视图的中心点、高度和宽度
            view.CenterPoint = minPt + (maxPt - minPt) / 2;
            view.Height = maxPt.Y - minPt.Y;
            view.Width = maxPt.X - minPt.X;
            //更新当前视图
            ed.SetCurrentView(view);
        }
    }
    /// 

    /// 选择扩展属性符合的图形
    /// 
    /// 
    /// 
    private void button2_Click(object sender, EventArgs e)
    {
        //清空全局变量
        table1.Clear();
        //清空界面的空间
        listBox1.Items.Clear();
        Database db = HostApplicationServices.WorkingDatabase;
        Editor ed = Application.DocumentManager.MdiActiveDocument.Editor;
        //过滤选择条件
        string lay = comboBox1.Text;
        if (comboBox1.Text == "")
        {
            lay = "**";
        }
        TypedValue[] values = new TypedValue[]
        {
            new TypedValue(1001, string.Format("*{0}*", textBox2.Text)),
            new TypedValue(8, string.Format("*{0}*", lay))
        };
        SelectionFilter filter = new SelectionFilter(values);
        PromptSelectionResult psr = ed.SelectAll(filter);
        //判断选择是否有图形
        if (psr.Status == PromptStatus.OK)
        {
            SelectionSet sset = psr.Value;
            ObjectId[] ids = sset.GetObjectIds();
            using (Transaction trans = db.TransactionManager.StartTransaction())
            {
                int i = 0;
                foreach (SelectedObject item in sset)
                {
                    Entity ent = (Entity)item.ObjectId.GetObject(OpenMode.ForRead);
                    //获取图形的最小点和最大点
                    double x1 = ent.GeometricExtents.MinPoint.X;
                    double y1 = ent.GeometricExtents.MinPoint.Y;
                    double x2 = ent.GeometricExtents.MaxPoint.X;
                    double y2 = ent.GeometricExtents.MaxPoint.Y;
                    List list1 = new List();
                    list1.Add(x1);
                    list1.Add(y1);
                    list1.Add(x2);
                    list1.Add(y2);
                    table1.Add(i, list1);
                    //获取图形的扩展属性
                    ResultBuffer rb = ent.XData;
                    List list = new List();
                    //将扩展属性的值添加到列表中
                    foreach (TypedValue tv in rb)
                    {
                        list.Add(tv.Value.ToString());
                    }
                    i++;
                    //将扩展属性添加到控件中
                    listBox1.Items.Add(String.Join("、", list.ToArray()));
                }
                trans.Commit();
            }
        }
    }

    private void button3_Click(object sender, EventArgs e)
    {
        comboBox1.Items.Clear();
        Database db = HostApplicationServices.WorkingDatabase;
        Editor ed = Application.DocumentManager.MdiActiveDocument.Editor;
        using (Transaction trans = db.TransactionManager.StartTransaction())
        {
            LayerTable lt = (LayerTable)trans.GetObject(db.LayerTableId, OpenMode.ForRead);
            foreach (ObjectId item in lt)
            {
                LayerTableRecord ltr = (LayerTableRecord)trans.GetObject(item, OpenMode.ForRead);
                if (ltr != null)
                {
                    comboBox1.Items.Add(ltr.Name);
                }
            }
        }
    }
}
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}