using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using Autodesk.AutoCAD.Runtime;

using Autodesk.AutoCAD.ApplicationServices;

using Autodesk.AutoCAD.EditorInput;

using Autodesk.AutoCAD.DatabaseServices;

using Autodesk.AutoCAD.Geometry;

namespace MyFirstProject

{

    public class Class1

    {

        [CommandMethod("HelloNet")]

        public void HelloNet()

        {

            Editor ed = Application.DocumentManager.MdiActiveDocument.Editor;

            ed.WriteMessage("使用NET开发AutoCAD 程序bygisoracle");

        }

        [CommandMethod("PickPoint")]

        public void PickPoint()

        {

            //获取Editor 对象

            Editor ed = Application.DocumentManager.MdiActiveDocument.Editor;

            PromptPointOptions promptPtOp = new PromptPointOptions("选择一个点：");

            //指定的基点，如果指定了该点，则在选择的时候绘制一条橡皮线。

            promptPtOp.BasePoint = new Autodesk.AutoCAD.Geometry.Point3d(, , );

            PromptPointResult resPt;

            resPt = ed.GetPoint(promptPtOp);

            if (resPt.Status == PromptStatus.OK)

            {

                ed.WriteMessage(" 选择的点为： " + resPt.Value.ToString());

            }

        }

        [CommandMethod("createCircle")]

        public void createCircle()

        {

            //首先声明我们要使用的对象

            Circle circle; //这个是我们要加入到模型空间的圆

            BlockTableRecord btr;//要加入圆，我们必须打开模型空间

            BlockTable bt; //要打开模型空间，我们必须通过块表(BlockTable)来访问它

            //我们使用一个名为‘Transaction’的对象，把函数中有关数据库的操作封装起来

            Transaction trans;

            //使用TransactionManager的StartTransaction()成员来开始事务处理

            trans = HostApplicationServices.WorkingDatabase.TransactionManager.StartTransaction();

            //现在创建圆……请仔细看这些参数——注意创建Point3d对象的‘New’和Vector3d的静态成员ZAxis

            circle = new Circle(new Point3d(, , ), Vector3d.ZAxis, );

            bt = (BlockTable)trans.GetObject(HostApplicationServices.WorkingDatabase.BlockTableId, OpenMode.ForRead);

            //使用当前的空间Id来获取块表记录——注意我们是打开它用来写入

            btr = (BlockTableRecord)trans.GetObject(HostApplicationServices.WorkingDatabase.CurrentSpaceId, OpenMode.ForWrite);

            //现在使用btr对象来加入圆

            btr.AppendEntity(circle);

            trans.AddNewlyCreatedDBObject(circle, true); //并确定事务处理知道要加入圆！

            //一旦完成以上操作，我们就提交事务处理，这样以上所做的改变就被保存了……

            trans.Commit();

            //…然后销毁事务处理，因为我们已经完成了相关的操作（事务处理不是数据库驻留对象，可以销毁）

            trans.Dispose();

        }

        [CommandMethod("SelectAPoint")]

        public void SelectAPoint()

        {

            //实例化一个 PromptPointOptions类用来设置提示字符串和其他的一些控制提示

            PromptPointOptions prPointOptions = new PromptPointOptions("Select a point");

            PromptPointResult prPointRes;

            // 实例化一个Editor类，使用GetPoint方法返回

            Editor ed = Application.DocumentManager.MdiActiveDocument.Editor;

            prPointRes = ed.GetPoint(prPointOptions);

            if (prPointRes.Status != PromptStatus.OK)

            {

                ed.WriteMessage("Error");

            }

            else

            {

                ed.WriteMessage("选择的点为：" + prPointRes.Value.ToString());

            }

        }

        [CommandMethod("getDistance")]

        public void GetDistance()

        {

            PromptDistanceOptions prDistOptions = new

            PromptDistanceOptions("计算两点距离，请选择第一个点：");

            PromptDoubleResult prDistRes;

            Editor ed = Application.DocumentManager.MdiActiveDocument.Editor;

            prDistRes = ed.GetDistance(prDistOptions);

            if (prDistRes.Status != PromptStatus.OK)

            {

                ed.WriteMessage("选择错误！");

            }

            else

            {

                ed.WriteMessage("两点的距离为：" + prDistRes.Value.ToString());

            }

        }

        [CommandMethod("AddPointAndSetPointStyle")]

        public static void AddPointAndSetPointStyle()

        {

            // 获得当前文档和数据库   Get the current document and database

            Document acDoc = Application.DocumentManager.MdiActiveDocument;

            Database acCurDb = acDoc.Database;

            // 启动一个事务  Start a transaction

            using (Transaction acTrans = acCurDb.TransactionManager.StartTransaction())

            {

                // 以只读方式打开块表   Open the Block table for read

                BlockTable acBlkTbl;

                acBlkTbl = acTrans.GetObject(acCurDb.BlockTableId,

                                             OpenMode.ForRead) as BlockTable;

                // 以写方式打开模型空间块表记录   Open the Block table record Model space for write

                BlockTableRecord acBlkTblRec;

                acBlkTblRec = acTrans.GetObject(acBlkTbl[BlockTableRecord.ModelSpace],

                                                OpenMode.ForWrite) as BlockTableRecord;

                // 在模型空间中创建一个坐标为（4，3，0）的点   Create a point at (4, 3, 0) in Model space

                for (int i = ; i < ; i++)

                {

                    DBPoint acPoint = new DBPoint(new Point3d(*i, , ));

                    acPoint.SetDatabaseDefaults();

                    // 添加新对象到块表记录和事务中   Add the new object to the block table record and the transaction

                    acBlkTblRec.AppendEntity(acPoint);

                    acTrans.AddNewlyCreatedDBObject(acPoint, true);

                }

                // 在图形中设置所有点对象的样式   Set the style for all point objects in the drawing

                acCurDb.Pdmode = ;

                acCurDb.Pdsize = ;

                // 保存新对象到数据库中   Save the new object to the database

                acTrans.Commit();

            }

        }

        [CommandMethod("Add2DSolid")]

        public static void Add2DSolid()

        {

            // 获得当前文档和数据库   Get the current document and database

            Document acDoc = Application.DocumentManager.MdiActiveDocument;

            Database acCurDb = acDoc.Database;

            // 启动一个事务  Start a transaction

            using (Transaction acTrans = acCurDb.TransactionManager.StartTransaction())

            {

                // 以只读方式打开块表   Open the Block table for read

                BlockTable acBlkTbl;

                acBlkTbl = acTrans.GetObject(acCurDb.BlockTableId,

                                             OpenMode.ForRead) as BlockTable;

                // 以写方式打开模型空间块表记录   Open the Block table record Model space for write

                BlockTableRecord acBlkTblRec;

                acBlkTblRec = acTrans.GetObject(acBlkTbl[BlockTableRecord.ModelSpace],

                                                OpenMode.ForWrite) as BlockTableRecord;

                // Create a quadrilateral (bow-tie) solid in Model space

                Solid ac2DSolidBow = new Solid(new Point3d(, , ),

                                               new Point3d(, , ),

                                               new Point3d(, , ),

                                               new Point3d(, , ));

                ac2DSolidBow.SetDatabaseDefaults();

                // 添加新对象到块表记录和事务中   Add the new object to the block table record and the transaction

                acBlkTblRec.AppendEntity(ac2DSolidBow);

                acTrans.AddNewlyCreatedDBObject(ac2DSolidBow, true);

                // Create a quadrilateral (square) solid in Model space

                Solid ac2DSolidSqr = new Solid(new Point3d(, , ),

                                               new Point3d(, , ),

                                               new Point3d(, , ),

                                               new Point3d(, , ));

                ac2DSolidSqr.SetDatabaseDefaults();

                // 添加新对象到块表记录和事务中   Add the new object to the block table record and the transaction

                acBlkTblRec.AppendEntity(ac2DSolidSqr);

                acTrans.AddNewlyCreatedDBObject(ac2DSolidSqr, true);

                // 保存新对象到数据库中   Save the new object to the database

                acTrans.Commit();

            }

        }

        [CommandMethod("AddLine")]

        public static void AddLine()

        {

            // 获得当前文档和数据库   Get the current document and database

            Document acDoc = Application.DocumentManager.MdiActiveDocument;

            Database acCurDb = acDoc.Database;

            // 启动一个事务  Start a transaction

            using (Transaction acTrans = acCurDb.TransactionManager.StartTransaction())

            {

                // 以只读方式打开块表   Open the Block table for read

                BlockTable acBlkTbl;

                acBlkTbl = acTrans.GetObject(acCurDb.BlockTableId,

                                             OpenMode.ForRead) as BlockTable;

                // 以写方式打开模型空间块表记录   Open the Block table record Model space for write

                BlockTableRecord acBlkTblRec;

                acBlkTblRec = acTrans.GetObject(acBlkTbl[BlockTableRecord.ModelSpace],

                                                OpenMode.ForWrite) as BlockTableRecord;

                // 创建一条起点为（5，5，0），终点为（12，3，0）的直线  Create a line that starts at 5,5 and ends at 12,3

                Line acLine = new Line(new Point3d(, , ),

                                       new Point3d(, , ));

                acLine.SetDatabaseDefaults();

                // 添加新对象到块表记录和事务中   Add the new object to the block table record and the transaction

                acBlkTblRec.AppendEntity(acLine);

                acTrans.AddNewlyCreatedDBObject(acLine, true);

                // 保存新对象到数据库中   Save the new object to the database

                acTrans.Commit();

            }

        }

    }

}