CAD二次开发（4）-编辑图形

工具类：EditEntityTool.cs

using Autodesk.AutoCAD.ApplicationServices;
using Autodesk.AutoCAD.DatabaseServices;
using Autodesk.AutoCAD.Geometry;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using AcDotNetTool;
namespace _03编辑图形
{public static  partial class EditEntityTool{/// <summary>/// 改变图形颜色/// </summary>/// <param name="c1Id">图形的ObjectId</param>/// <param name="colorIndex">颜色索引</param>public  static void ChangeEntityColor(this ObjectId c1Id, short colorIndex){//图形数据库Database db = HostApplicationServices.WorkingDatabase;using (Transaction trans = db.TransactionManager.StartTransaction()){//打开块表BlockTable bt = (BlockTable)trans.GetObject(db.BlockTableId, OpenMode.ForRead);//打开块表记录BlockTableRecord btr = (BlockTableRecord)trans.GetObject(bt[BlockTableRecord.ModelSpace], OpenMode.ForRead);//获取图形对象Entity ent1 = (Entity)c1Id.GetObject(OpenMode.ForWrite);ent1.ColorIndex = colorIndex;trans.Commit();}}/// <summary>/// 改变图形颜色/// </summary>/// <param name="ent">图形对象</param>/// <param name="colorIndex">颜色索引</param>public static void ChangeEntityColor(this Entity ent, short colorIndex){//判断图形的IsNewlyObjectif (ent.IsNewObject){ent.ColorIndex = colorIndex;}else{ent.ObjectId.ChangeEntityColor(colorIndex);}}/// <summary>/// 移动图形/// </summary>/// <param name="entId">图形对象的ObjectId</param>/// <param name="sorucePoint">参考原点</param>/// <param name="targetPoint">参考目标点</param>public static void MoveEntity(this ObjectId entId, Point3d sourcePoint, Point3d targetPoint){//当前图形数据库Database db = HostApplicationServices.WorkingDatabase;using (Transaction trans = db.TransactionManager.StartTransaction()){//打开块表BlockTable bt = (BlockTable)trans.GetObject(db.BlockTableId, OpenMode.ForRead);//打开块表记录BlockTableRecord btr = (BlockTableRecord)trans.GetObject(bt[BlockTableRecord.ModelSpace], OpenMode.ForRead);//打开图形//Entity ent = (Entity)trans.GetObject(entId, OpenMode.ForWrite);Entity ent = (Entity)entId.GetObject(OpenMode.ForWrite);//计算变换矩阵Vector3d vector = sourcePoint.GetVectorTo(targetPoint);Matrix3d mt = Matrix3d.Displacement(vector);ent.TransformBy(mt);//提交事务处理trans.Commit();}}/// <summary>/// 移动图形/// </summary>/// <param name="entId">图形对象</param>/// <param name="sorucePoint">参考原点</param>/// <param name="targetPoint">参考目标点</param>public static void MoveEntity(this Entity ent, Point3d sourcePoint, Point3d targetPoint){//判断图形对象的IsNewlyObejct属性if (ent.IsNewObject){//计算变换矩阵Vector3d vector = sourcePoint.GetVectorTo(targetPoint);Matrix3d mt = Matrix3d.Displacement(vector);ent.TransformBy(mt);}else{ent.ObjectId.MoveEntity(sourcePoint, targetPoint);}}/// <summary>/// 复制图形/// </summary>/// <param name="entId">图形的半ObjectId</param>/// <param name="sourcePoint">参考起点</param>/// <param name="targetPoint">参考终点</param>/// <returns>图形对象,没有加入图形数据库</returns>public static Entity CopyEntity(this ObjectId entId, Point3d sourcePoint, Point3d targetPoint){//声明一个图形对象Entity entR;//当前图形数据库Database db = HostApplicationServices.WorkingDatabase;using (Transaction trans = db.TransactionManager.StartTransaction()){//打开块表BlockTable bt = (BlockTable)trans.GetObject(db.BlockTableId, OpenMode.ForRead);//打开块表记录BlockTableRecord btr = (BlockTableRecord)trans.GetObject(bt[BlockTableRecord.ModelSpace], OpenMode.ForRead);//打开图形//Entity ent = (Entity)trans.GetObject(entId, OpenMode.ForWrite);Entity ent = (Entity)entId.GetObject(OpenMode.ForWrite);//计算变换矩阵Vector3d vector = sourcePoint.GetVectorTo(targetPoint);Matrix3d mt = Matrix3d.Displacement(vector);entR =  ent.GetTransformedCopy(mt);//提交事务处理trans.Commit();}return entR;}/// <summary>/// 复制图形/// </summary>/// <param name="entId">图形对象ram>/// <param name="sourcePoint">参考起点</param>/// <param name="targetPoint">参考终点</param>/// <returns>图形对象,没有加入图形数据库</returns>public static Entity CopyEntity(this Entity ent, Point3d sourcePoint, Point3d targetPoint){//声明一个图形对象Entity entR;//判断图形对象的IsNewlyObejct属性if (ent.IsNewObject){//计算变换矩阵Vector3d vector = sourcePoint.GetVectorTo(targetPoint);Matrix3d mt = Matrix3d.Displacement(vector);entR =  ent.GetTransformedCopy(mt);}else{entR =  ent.ObjectId.CopyEntity(sourcePoint, targetPoint);}return entR;}/// <summary>/// 旋转图形/// </summary>/// <param name="ent">图形对象的ObjectId</param>/// <param name="center">旋转中点</param>/// <param name="degree">旋转的角度</param>public static void  RotateEntity(this ObjectId entId, Point3d center,double degree){//当前图形数据库Database db = HostApplicationServices.WorkingDatabase;using (Transaction trans = db.TransactionManager.StartTransaction()){//打开块表BlockTable bt = (BlockTable)trans.GetObject(db.BlockTableId, OpenMode.ForRead);//打开块表记录BlockTableRecord btr = (BlockTableRecord)trans.GetObject(bt[BlockTableRecord.ModelSpace], OpenMode.ForRead);//打开图形//Entity ent = (Entity)trans.GetObject(entId, OpenMode.ForWrite);Entity ent = (Entity)entId.GetObject(OpenMode.ForWrite);//计算变换矩阵Matrix3d mt = Matrix3d.Rotation(degree.DegreeToAngle(), Vector3d.ZAxis, center);ent.TransformBy(mt);//提交事务处理trans.Commit();}}/// <summary>/// 旋转图形/// </summary>/// <param name="ent">图形对象</param>/// <param name="center">旋转中点</param>/// <param name="degree">旋转的角度</param>public static void RotateEntity(this Entity ent, Point3d center, double degree){//判断图形对象的IsNewlyObejct属性if (ent.IsNewObject){//计算变换矩阵Matrix3d mt = Matrix3d.Rotation(degree.DegreeToAngle(), Vector3d.ZAxis, center);ent.TransformBy(mt);}else{ent.ObjectId.RotateEntity(center, degree);}}/// <summary>/// 镜像图形/// </summary>/// <param name="entId">图形对象的ObjectId</param>/// <param name="point1">第一个镜像点</param>/// <param name="point2">第二个镜像点</param>/// <param name="isEraseSoruce">是否删除原图</param>/// <returns>返回新的图形对象，没有加入图形数据库</returns>public static Entity MirrorEntity(this ObjectId entId, Point3d point1, Point3d point2, bool isEraseSoruce){//声明一个图形对象,用于返回Entity entR;//计算镜像的变换矩阵Matrix3d mt = Matrix3d.Mirroring(new Line3d(point1, point2));//打开事务处理using (Transaction trans = entId.Database.TransactionManager.StartTransaction()){//打开原对象Entity ent = (Entity)trans.GetObject(entId, OpenMode.ForWrite);//这里得到的图形的IsNewlyObject = trueentR = ent.GetTransformedCopy(mt);//判断是否删除对象if (isEraseSoruce){ent.Erase();}trans.Commit();}return entR;}/// <summary>/// 镜像图形/// </summary>/// <param name="entId">图形对象</param>/// <param name="point1">第一个镜像点</param>/// <param name="point2">第二个镜像点</param>/// <param name="isEraseSoruce">是否删除原图</param>/// <returns>返回新的图形对象，没有加入图形数据库</returns>public static Entity MirrorEntity(this Entity ent, Point3d point1, Point3d point2, bool isEraseSoruce){//声明一个图形对象,用于返回Entity entR;if (ent.IsNewObject == true){//计算镜像的变换矩阵Matrix3d mt = Matrix3d.Mirroring(new Line3d(point1, point2));entR = ent.GetTransformedCopy(mt);}else{entR  = ent.ObjectId.MirrorEntity(point1, point2, isEraseSoruce);}return entR;}/// <summary>/// 缩放图形/// </summary>/// <param name="entId">图形对象的ObjectId</param>/// <param name="basePoint">缩放的基点</param>/// <param name="facter">缩放比例</param>public static void ScaleEntity(this ObjectId entId, Point3d basePoint, double facter){//计算缩放矩阵Matrix3d mt = Matrix3d.Scaling(facter, basePoint);//启动事务处理using (Transaction trans = entId.Database.TransactionManager.StartTransaction()){//打开要缩放的图形对象Entity ent = (Entity)entId.GetObject(OpenMode.ForWrite);ent.TransformBy(mt);trans.Commit();}}/// <summary>/// 缩放图形/// </summary>/// <param name="entId">图形对象的</param>/// <param name="basePoint">缩放的基点</param>/// <param name="facter">缩放比例</param>public static void ScaleEntity(this Entity ent, Point3d basePoint, double facter){//判断图形对象的IsNewlyObject属性if (ent.IsNewObject == true){//计算缩放矩阵Matrix3d mt = Matrix3d.Scaling(facter, basePoint);ent.TransformBy(mt);}else{ent.ObjectId.ScaleEntity(basePoint, facter);}}/// <summary>/// 删除图形对象/// </summary>/// <param name="entId">图形对象的ObjectId</param>public static void EraseEntity(this ObjectId entId){//打开事务处理using (Transaction trans = entId.Database.TransactionManager.StartTransaction()){//打开要缩放的图形对象Entity ent = (Entity)entId.GetObject(OpenMode.ForWrite);ent.Erase();trans.Commit();}}/// <summary>/// 巨型阵列/// </summary>/// <param name="entId">图形对象的ObjectId</param>/// <param name="rowNum">行数</param>/// <param name="columnNum">列数</param>/// <param name="disRow">行距</param>/// <param name="disColumn">列距</param>/// <returns>List<Entity> 已加入图形数据库</returns>public static List<Entity> ArrayRectEntity(this ObjectId entId,int rowNum,int columnNum,double disRow,double disColumn){//声明一个Enity类型的集合List<Entity> entList = new List<Entity>();//当前图形数据库Database db = HostApplicationServices.WorkingDatabase;using (Transaction trans = db.TransactionManager.StartTransaction()){//打开块表BlockTable bt = (BlockTable)trans.GetObject(db.BlockTableId, OpenMode.ForRead);//打开块表记录BlockTableRecord btr = (BlockTableRecord)trans.GetObject(bt[BlockTableRecord.ModelSpace], OpenMode.ForWrite);//打开图形//Entity ent = (Entity)trans.GetObject(entId, OpenMode.ForWrite);Entity ent = (Entity)entId.GetObject(OpenMode.ForWrite);//计算变换矩阵for (int i = 0; i < rowNum; i++){for (int j = 0; j < columnNum; j++){Matrix3d mt = Matrix3d.Displacement(new Vector3d(j * disColumn, i * disRow, 0));Entity entA = ent.GetTransformedCopy(mt);btr.AppendEntity(entA);trans.AddNewlyCreatedDBObject(entA,true);entList.Add(entA);}}ent.Erase();//提交事务处理trans.Commit();}return entList;}/// <summary>/// 巨型阵列/// </summary>/// <param name="entId">图形对象</param>/// <param name="rowNum">行数</param>/// <param name="columnNum">列数</param>/// <param name="disRow">行距</param>/// <param name="disColumn">列距</param>/// <returns>List<Entity> 已加入图形数据库</returns>public static List<Entity> ArrayRectEntity(this Entity entS, int rowNum, int columnNum, double disRow, double disColumn){if (entS.IsNewObject == true){//声明一个Enity类型的集合List<Entity> entList = new List<Entity>();Database db = HostApplicationServices.WorkingDatabase;using (Transaction trans = db.TransactionManager.StartTransaction()){//打开块表BlockTable bt = (BlockTable)trans.GetObject(db.BlockTableId, OpenMode.ForRead);//打开块表记录BlockTableRecord btr = (BlockTableRecord)trans.GetObject(bt[BlockTableRecord.ModelSpace], OpenMode.ForWrite);for (int i = 0; i < rowNum; i++){for (int j = 0; j < columnNum; j++){Matrix3d mt = Matrix3d.Displacement(new Vector3d(j * disColumn, i * disRow, 0));Entity entA = entS.GetTransformedCopy(mt);btr.AppendEntity(entA);trans.AddNewlyCreatedDBObject(entA, true);entList.Add(entA);}}trans.Commit();}return entList; }else{return entS.ArrayRectEntity(rowNum, columnNum, disRow, disColumn);}}public static List<Entity> ArrayPolarEntity(this ObjectId entId, int num, double degree,Point3d center){//声明一个List集合,用于返回List<Entity> entList = new List<Entity>();//打开事务处理using (Transaction trans = entId.Database.TransactionManager.StartTransaction()){//打开块表BlockTable bt = (BlockTable)trans.GetObject(entId.Database.BlockTableId, OpenMode.ForRead);//打开块表记录BlockTableRecord btr = (BlockTableRecord)trans.GetObject(bt[BlockTableRecord.ModelSpace], OpenMode.ForWrite);Entity ent = (Entity)entId.GetObject(OpenMode.ForWrite);//限定阵列角度的大小degree = degree > 360 ? 360 : degree;degree = degree < -360 ? -360 : degree;int divAngNum = num-1;if (degree == 360 || degree == -360){divAngNum = num;}for (int i = 0; i < num; i++){Matrix3d mt = Matrix3d.Rotation((i * degree / divAngNum).DegreeToAngle(), Vector3d.ZAxis, center);Entity entA = ent.GetTransformedCopy(mt);btr.AppendEntity(entA);trans.AddNewlyCreatedDBObject(entA, true);entList.Add(entA);}ent.Erase();trans.Commit();}return entList;}/// <summary>/// /// </summary>/// <param name="ent"></param>/// <param name="num"></param>/// <param name="degree"></param>/// <param name="center"></param>/// <returns></returns>public static List<Entity> ArrayPolarEntity(this Entity ent, int num, double degree, Point3d center){if (ent.IsNewObject == true){//声明一个List集合,用于返回List<Entity> entList = new List<Entity>();Database db = HostApplicationServices.WorkingDatabase;using (Transaction trans = db.TransactionManager.StartTransaction()){//打开块表BlockTable bt = (BlockTable)trans.GetObject(db.BlockTableId, OpenMode.ForRead);//打开块表记录BlockTableRecord btr = (BlockTableRecord)trans.GetObject(bt[BlockTableRecord.ModelSpace], OpenMode.ForWrite);degree = degree > 360 ? 360 : degree;degree = degree < -360 ? -360 : degree;int divAngNum = num - 1;if (degree == 360 || degree == -360){divAngNum = num;}for (int i = 0; i < num; i++){Matrix3d mt = Matrix3d.Rotation((i * degree / divAngNum).DegreeToAngle(), Vector3d.ZAxis, center);Entity entA = ent.GetTransformedCopy(mt);btr.AppendEntity(entA);trans.AddNewlyCreatedDBObject(entA, true);entList.Add(entA);}trans.Commit();}return entList;}else{return ent.ObjectId.ArrayPolarEntity(num, degree, center);}}}
}

改变图形颜色

       [CommandMethod("EditDemo")]public void EditDemo(){Database db = HostApplicationServices.WorkingDatabase;//db.AddCircleModelSpace(new Point3d(100, 100, 0), 50);Circle c1 = new Circle(new Point3d(100, 100, 0), new Vector3d(0, 0, 1), 50);Circle c2 = new Circle(new Point3d(200, 100, 0), new Vector3d(0, 0, 1), 50);db.AddEntityToModelSpace(c1);c1.ChangeEntityColor(1);c2.ChangeEntityColor(6);db.AddEntityToModelSpace(c2);}

在这里插入图片描述

移动图形

 [CommandMethod("MoveDemo")]public void MoveDemo(){Database db = HostApplicationServices.WorkingDatabase;Circle c1 = new Circle(new Point3d(100, 100, 0), new Vector3d(0, 0, 1), 50);Circle c2 = new Circle(new Point3d(100, 100, 0), new Vector3d(0, 0, 1), 50);Circle c3 = new Circle(new Point3d(100, 100, 0), new Vector3d(0, 0, 1), 50);Point3d p1 = new Point3d(100, 100, 0);Point3d p2 = new Point3d(200, 300, 0);//c2.Center = new Point3d(c2.Center.X + p2.X - p1.X, c2.Center.Y + p2.Y - p1.Y, 0);//db.AddEnityToModelSpace(c1, c2);db.AddEnityToModelSpace(c1,c2);c2.MoveEntity(p1, p2);c3.MoveEntity(p2, p1);db.AddEnityToModelSpace(c3);}## 复制图形```csharp
//复制图形
[CommandMethod("CopyDemo")]
public void CopyDemo()
{Database db = HostApplicationServices.WorkingDatabase;Circle c1 = new Circle(new Point3d(100, 100, 0), Vector3d.ZAxis, 100);Circle c2 = (Circle)c1.CopyEntity(new Point3d(100, 100, 0), new Point3d(100, 200, 0));db.AddEnityToModelSpace(c1,c2);Circle c3 = (Circle)c1.CopyEntity(new Point3d(0, 0, 0), new Point3d(-100, 0, 0));db.AddEnityToModelSpace(c3);
}

旋转图形

//旋转图形
[CommandMethod("RotateDemo")]
public void RotateDemo()
{Database db = HostApplicationServices.WorkingDatabase;Line l1 = new Line(new Point3d(100, 100, 0), new Point3d(300, 100, 0));Line l2 = new Line(new Point3d(100, 100, 0), new Point3d(300, 100, 0));Line l3 = new Line(new Point3d(100, 100, 0), new Point3d(300, 100, 0));l1.RotateEntity(new Point3d(100, 100, 0), 30);db.AddEnityToModelSpace(l1,l2,l3);l2.RotateEntity(new Point3d(0, 0, 0), 60);l3.RotateEntity(new Point3d(200, 500, 0), 90);
}

镜像图形

[CommandMethod("MirrorDemo1")]
public void MirrorDemo1()
{Database db = HostApplicationServices.WorkingDatabase;Circle c1 = new Circle(new Point3d(100, 100, 0), Vector3d.ZAxis, 50);ObjectId cId =  db.AddEnityToModelSpace(c1);Entity Ent = cId.MirrorEntity(new Point3d(200, 100, 0), new Point3d(200, 300, 0), true);db.AddEnityToModelSpace(Ent);Circle c2 = new Circle(new Point3d(100, 200, 0), Vector3d.ZAxis, 50);Entity ent2 = c2.MirrorEntity(new Point3d(200, 100, 0), new Point3d(200, 300, 0), true);//Entity ent3 = c2.MirrorEntity(new Point3d(200, 100, 0), new Point3d(200, 300, 0), false);db.AddEnityToModelSpace(c2,ent2);
}

缩放图形

        [CommandMethod("ScaleDemo")]public void ScaleDemo(){Database db = HostApplicationServices.WorkingDatabase;Circle c1 = new Circle(new Point3d(100, 100, 0), Vector3d.ZAxis, 50);db.AddEnityToModelSpace(c1);Circle c2 = new Circle(new Point3d(200, 100, 0), Vector3d.ZAxis, 50);c2.ScaleEntity(new Point3d(200, 100, 0), 0.5);db.AddEnityToModelSpace(c2);Circle c3 = new Circle(new Point3d(300, 100, 0), Vector3d.ZAxis, 50);db.AddEnityToModelSpace(c3);c3.ScaleEntity(new Point3d(0, 0, 0), 2);}

删除图形对象

[CommandMethod("EraseDemo")]
public void EraseDemo()
{Database db = HostApplicationServices.WorkingDatabase;Circle c1 = new Circle(new Point3d(100, 100, 0), Vector3d.ZAxis, 50);Circle c2 = new Circle(new Point3d(200, 100, 0), Vector3d.ZAxis, 50);db.AddEnityToModelSpace(c1, c2);c2.ObjectId.EraseEntity();
}

矩形阵列图形

        [CommandMethod("ArrayRectDemo1")]public void ArrayRectDemo1(){Database db = HostApplicationServices.WorkingDatabase;//ObjectId cirId = db.AddCircleModelSpace(new Point3d(100, 100, 0), 20);//cirId.ArrayRectEntity(5, 6, -50, -50);Circle c = new Circle(new Point3d(100, 100, 0), Vector3d.ZAxis, 10);c.ArrayRectEntity(5, 6, -50, 50);}

环形阵列图形

[CommandMethod("ArrayPolarDemo")]
public void ArrayPolarDemo()
{Database db = HostApplicationServices.WorkingDatabase;//ObjectId lineId = db.AddLineToModelSpace(new Point3d(100, 100, 0), new Point3d(120, 100, 0));//lineId.ArrayPolarEntity(6, 360, new Point3d(100, 200, 0));//ObjectId lineId2 = db.AddLineToModelSpace(new Point3d(500, 100, 0), new Point3d(520, 100, 0));//lineId2.ArrayPolarEntity(6, 350, new Point3d(500, 200, 0));//ObjectId lineId3 = db.AddLineToModelSpace(new Point3d(1000, 100, 0), new Point3d(1020, 100, 0));//lineId3.ArrayPolarEntity(6, -350, new Point3d(1000, 200, 0));Line l = new Line(new Point3d(100, 100, 0), new Point3d(120, 120, 0));l.ArrayPolarEntity(7, -270, new Point3d(110, 300, 0));
}

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