AutoCAD.EntityTools 1.0.6

CAD二次开发对实体类做出的扩展...

项目结构

• AutoCAD.EntityTools CAD二次开发工具
• AutoCAD.EntityTool.Tests 测试工具

类结构

• EntityTools Entity类扩展
• PointTools Point类扩展
• LayerTools Layer类扩展
• EditorTools Editor类扩展
• BlockTools Block类扩展

调用方式

using AutoCAD.EntityTools;
using Autodesk.AutoCAD.ApplicationServices;
using Autodesk.AutoCAD.DatabaseServices;
using Autodesk.AutoCAD.Geometry;
using Autodesk.AutoCAD.Runtime;
[assembly:CommandClass(typeof(AutoCAD.Entitytools.Test.Demo))]
namespace AutoCAD.Entitytools.Test
{
    public class Demo
    {
        [CommandMethod(nameof(Run1))]
        public void Run1()
        {
            try
            {
                var doc = Application.DocumentManager.MdiActiveDocument;
                using (doc.LockDocument())
                {
                    var line = new Line(Point3d.Origin, new Point3d(10, 10, 0));
                    doc.Database.AddEntityToModelSpace(line);
                }

                "完成了".CadAlert();
            }
            catch (System.Exception ex)
            {
                System.Windows.MessageBox.Show(ex.Message);
            }
        }
    }
}

封装方法

Entity类扩展

/// <summary>
/// 通过ObjectId数组获取对应的实体数组。
/// </summary>
/// <param name="db">AutoCAD数据库实例。</param>
/// <param name="objIds">要查询的ObjectId数组。</param>
/// <returns>与ObjectId数组对应的实体数组。如果传入的ObjectId数组为空或长度为零，则返回null。</returns>
/// <remarks>
/// 此方法使用事务来安全地访问数据库中的实体。每个ObjectId都会被查询，并转换为对应的实体。
/// 如果传入的ObjectId不存在或无法转换为实体，则对应位置在返回的数组中将为null。
/// </remarks>
ToObjectIdGetEntity(this Database db, params ObjectId[] objIds)
/// <summary>
/// 通过ObjectId得到实体
/// </summary>
/// <param name="objId">要查询的ObjectId</param>
/// <param name="db">图像数据库</param>
/// <returns>实体</returns>
ToObjectIdGetEntity(this Database db, ObjectId objId)
/// <summary>
/// 移动实体
/// </summary>
/// <param name="id">实体的ObjectId</param>
/// <param name="sourcePt">移动源点</param>
/// <param name="targetPt">移动的目标点</param>
Move(this ObjectId id, Point3d sourcePt, Point3d targetPt)
/// <summary>
/// 移动实体
/// </summary>
/// <param name="ent">实体</param>
/// <param name="sourcePt">移动源点</param>
/// <param name="targetPt">移动的目标点</param>
Move(this Entity ent, Point3d sourcePt, Point3d targetPt)
/// <summary>
/// 复制
/// </summary>
/// <param name="id">实体的ObjectId</param>
/// <param name="sourcePt">复制的源点</param>
/// <param name="targetPt">复制的目标点</param>
/// <returns>复制实体的ObjectId</returns>
Copy(this ObjectId id, Point3d sourcePt, Point3d targetPt)
/// <summary>
/// 旋转 
/// </summary>
/// <param name="id">实体ObjectId</param>
/// <param name="basePt">旋转基点</param>
/// <param name="angle">旋转角度</param>
Rotate(this ObjectId id, Point3d basePt, double angle)
/// <summary>
/// 缩放
/// </summary>
/// <param name="id">实体的ObjectId</param>
/// <param name="basePt">缩放基点</param>
/// <param name="scaleFactor">缩放比例</param>
Scale(this ObjectId id, Point3d basePt, double scaleFactor)
/// <summary>
/// 镜像
/// </summary>
/// <param name="id">实体ObjectId</param>
/// <param name="mirrorPt1">镜像点1</param>
/// <param name="mirrorPt2">镜像点2</param>
/// <param name="eraseSourceObject">是否删除源对象</param>
/// <returns>镜像实体的ObjectId</returns>
Mirror(this ObjectId id, Point3d mirrorPt1, Point3d mirrorPt2, bool eraseSourceObject)
/// <summary>
/// 将指定的实体添加到AutoCAD图形数据库中的块表记录（BlockTableRecord）。
/// </summary>
/// <typeparam name="TEntity">实体类型，必须继承自AutoCAD的Entity类。</typeparam>
/// <param name="entity">要添加到数据库的实体对象。</param>
/// <param name="host">当前的事务对象，用于管理对数据库的操作。</param>
/// <param name="btr">目标块表记录，实体将被添加到这个记录中。</param>
/// <returns>返回添加到数据库后实体的ObjectId。</returns>
/// <remarks>
/// 此方法执行以下操作：
/// 1. 将实体附加到指定的块表记录。
/// 2. 将新创建的实体添加到事务中，确保实体被正确地管理。
/// 如果传入的实体为null，则方法返回ObjectId.Null。
/// </remarks>
AddToDatabase<TEntity>(this TEntity entity, Transaction host, BlockTableRecord btr)
/// <summary>
/// 将一组实体添加到AutoCAD图形数据库中的模型空间块表记录（BlockTableRecord）。
/// </summary>
/// <typeparam name="TEntity">实体类型，必须继承自AutoCAD的Entity类。</typeparam>
/// <param name="entities">要添加到数据库的实体集合。</param>
/// <param name="host">当前的事务对象，用于管理对数据库的操作。</param>
/// <param name="model_space">模型空间块表记录，实体将被添加到这个记录中。</param>
/// <returns>返回一个包含所有添加到数据库后实体的ObjectId的列表。</returns>
/// <remarks>
/// 此方法执行以下操作：
/// 1. 对传入的实体集合中的每个实体执行添加操作。
/// 2. 将每个实体附加到指定的模型空间块表记录。
/// 3. 将新创建的实体添加到事务中，确保实体被正确地管理。
/// 如果传入的实体集合为空或包含null元素，则这些元素将被忽略，不会添加到数据库中。
/// </remarks>
AddToDatabase<TEntity>(this ICollection<TEntity> entities, Transaction host, BlockTableRecord model_space)
/// <summary>
/// 将一组实体添加到AutoCAD图形数据库中的指定块表记录（BlockTableRecord）。
/// </summary>
/// <typeparam name="TEntity">实体类型，必须继承自AutoCAD的Entity类。</typeparam>
/// <param name="trans">当前的事务对象，用于管理对数据库的操作。</param>
/// <param name="btr">块表记录对象，实体将被添加到这个记录中。</param>
/// <param name="entities">要添加到数据库的实体数组。</param>
/// <returns>返回一个包含所有添加到数据库后实体的ObjectId的列表。</returns>
/// <remarks>
/// 此方法执行以下操作：
/// 1. 对传入的实体数组中的每个实体执行添加操作。
/// 2. 将每个实体附加到指定的块表记录。
/// 3. 将新创建的实体添加到事务中，确保实体被正确地管理。
/// 如果传入的实体数组为空或包含null元素，则这些元素将被忽略，不会添加到数据库中。
/// </remarks>
AddEntityToDatabase<TEntity>(this Transaction trans, BlockTableRecord btr, params TEntity[] entities)
/// <summary>
/// 修改实体的颜色
/// </summary>
/// <param name="entityId">实体Id</param>
/// <param name="newColorIndex">颜色index</param>
ModifyEntityColorIndex(this ObjectId entityId, short newColorIndex)
/// <summary>
/// 将图形对象添加到图形文件中
/// </summary>
/// <param name="db">图形数据库</param>
/// <param name="entity">图形对象</param>
/// <returns>图形的objectid</returns>
AddEntityToModelSpace(this Database db, Entity entity)
/// <summary>
/// 将图形对象添加到图形文件中
/// </summary>
/// <param name="db">图形数据库</param>
/// <param name="entity">图形对象，可变参数</param>
/// <returns>图形的objectId，数组返回</returns>
AddEntityToModelSpace(this Database db, params Entity[] entity)
/// <summary>
/// 修改图形颜色(未添加到图形数据库)
/// </summary>
/// <param name="entity">实体</param>
/// <param name="colorIndex">颜色index</param>
ChangeEntityColor<TEntity>(this TEntity entity, short colorIndex, Document doc)
/// <summary>
/// 修改图形颜色
/// </summary>
/// <param name="entity">实体</param>
/// <param name="colorIndex">颜色Index</param>
ChangeEntityColor2<TEntity>(this TEntity entity, short colorIndex, Document doc)
/// <summary>
/// 删除图形对象
/// </summary>
/// <param name="entity">图形对象的ObjectId</param>
EraseEntity(this ObjectId entity)
/// <summary>
/// 删除图形对象
/// </summary>
/// <param name="entIds">图形对象的ObjectId</param>
EraseEntities(params ObjectId[] entIds)
/// <summary>
/// 通过ObjectId得到实体
/// </summary>
/// <param name="objIds">实体id</param>
/// <param name="db">图像数据库</param>
/// <returns></returns>
GetEntity(this ObjectId[] objIds, Database db)
/// <summary>
/// 通过ObjectId得到实体
/// </summary>
/// <param name="objId">实体id</param>
/// <param name="db">图像数据库</param>
/// <returns></returns>
GetEntity(this ObjectId objId, Database db)
/// <summary>
/// 通过圆心、起点夹角绘制圆弧
/// </summary>
/// <param name="db">图形数据库</param>
/// <param name="center">圆心</param>
/// <param name="startPoint">起点</param>
/// <param name="degree">夹角,角度值</param>
/// <returns>ObjectId</returns>
AddArcToModelSpace(this Database db, Point3d center, Point3d startPoint, double degree)
/// <summary>
/// 绘制圆弧
/// </summary>
/// <param name="db">图形数据库</param>
/// <param name="startPoint">圆弧的起始点</param>
/// <param name="pointOnArc"></param>
/// <param name="endPoint">圆弧的终止点</param>
/// <returns>ObjectId</returns>
AddArcToModelSpace(this Database db, Point3d startPoint, Point3d pointOnArc, Point3d endPoint)
/// <summary>
/// 绘制圆弧
/// </summary>
/// <param name="db">图形数据库</param>
/// <param name="center">圆弧所在圆的圆心点</param>
/// <param name="radius">圆弧的半径</param>
/// <param name="startDegree">圆弧的起始角度</param>
/// <param name="endDegree">圆弧的终止角度</param>
/// <returns>ObjectId</returns>
AddArcToModelSpace(this Database db, Point3d center, double radius, double startDegree, double endDegree)
/// <summary>
/// 绘制直线 
/// </summary>
/// <param name="db">图形数据库</param>
/// <param name="startPoint">起点坐标</param>
/// <param name="length">直线长度</param>
/// <param name="degree">与x轴正方向的角度</param>
/// <returns>ObjectId</returns>
AddLineToModelSpace(this Database db, Point3d startPoint, double length, double degree)
/// <summary>
/// 删除图形
/// </summary>
/// <param name="doc">当前文档</param>
/// <param name="entityIds">实体id</param>
/// <returns>是否删除成功</returns>
DeleteEntities(this Document doc, List<ObjectId> entityIds)
/// <summary>
/// 删除图像数据库实体
/// </summary>
/// <param name="doc">当前文档</param>
/// <param name="entityIds">实体id</param>
/// <returns>是否删除成功</returns>
DeleteEntities(this Document doc, params ObjectId[] entityIds)
/// <summary>
/// 设置实体颜色、图层
/// </summary>
/// <typeparam name="TEntity">实体类型，必须继承自AutoCAD的Entity类</typeparam>
/// <param name="entity">实体</param>
/// <param name="colorIndex">颜色索引</param>
/// <param name="layerName">图层名字</param>
SetColorLayer<TEntity>(this TEntity entity, short colorIndex, string layerName)
/// <summary>
/// 设置多段线颜色、图层并闭合
/// </summary>
/// <param name="polyline">多段线</param>
/// <param name="colorIndex">颜色索引</param>
/// <param name="layerName">图层名字</param>
/// <param name="isClosed">是否闭合</param>
SetPolylineColorLayer(this Polyline polyline, short colorIndex, string layerName, bool isClosed = true)

Point类扩展

/// <summary>
/// 将3D点转换为2D点，忽略Z坐标
/// </summary>
/// <param name="point3d">要转换的3D点</param>
/// <returns>转换后的2D点</returns>
Point3dToPoint2d(this Point3d point3d)
/// <summary>
/// 将2D点转换为3D点
/// </summary>
/// <param name="point2d">要转换的2D点</param>
/// <returns>转换后的3D点</returns>
Point2dToPoint3d(this Point2d point2d)
/// <summary>
/// 获取2D点的中心点
/// </summary>
/// <param name="point2d">要获取中心的2D点</param>
/// <returns>中心点</returns>
GetPoint2dCenter(this Point2d point2d)
/// <summary>
/// 获取3D点的中心点
/// </summary>
/// <param name="point3d">要获取中心的3D点</param>
/// <returns>中心点</returns>
GetPoint3dCenter(this Point3d point3d)
/// <summary>
/// 获取两个点之间的中心点
/// </summary>
/// <param name="startPoint">起点</param>
/// <param name="endPoint">终点</param>
/// <returns>中点</returns>
GetCenterPointInTwoPointBetween(this Point3d startPoint, Point3d endPoint)
/// <summary>
/// 获取从起点到终点的向量坐标，该向量的起点是原点。
/// </summary>
/// <param name="startPoint">起点坐标。</param>
/// <param name="endPoint">终点坐标。</param>
/// <returns>一个Point3d对象，表示从起点到终点的向量坐标，Z坐标为0。</returns>
/// <remarks>此方法返回的坐标并不是终点坐标，而是从起点到终点的向量坐标。如果需要得到终点的绝对坐标，应该直接返回endPoint。</remarks>
GetPointArrivePointCoordinate(this Point3d startPoint, Point3d endPoint)
/// <summary>
/// 获取两个3d点之间的中心点
/// </summary>
/// <param name="start">起点</param>
/// <param name="end">终点</param>
/// <returns>中心点</returns>
GetTwoPoint3dCenter(this Point3d start, Point3d end)
/// <summary>
/// 获取两个2d点之间的中心点
/// </summary>
/// <param name="start">起点</param>
/// <param name="end">终点</param>
/// <returns>中心点</returns>
GetTwoPoint2dCenter(this Point2d start, Point2d end)
/// <summary>
/// 3d转2d
/// </summary>
/// <param name="point3d">3d点</param>
/// <returns></returns>
Point3dConvertToPoint2d(this Point3d point3d)
/// <summary>
/// 判断三点是否在同一条直线上
/// </summary>
/// <param name="firstPoint">第一个点</param>
/// <param name="secondPoint">第二个点</param>
/// <param name="thirdPoint">第三个点</param>
IsOnOneLine(this Point3d firstPoint, Point3d secondPoint, Point3d thirdPoint)
/// <summary>
/// 获得point X 方向与point2的角度
/// </summary>
/// <param name="point1">点1</param>
/// <param name="point2">点2</param>
/// <returns></returns>
GetAngleToXAxis(this Point3d point1, Point3d point2)
/// <summary>
/// 如果距离小于等于指定的误差（tolerance），则判定这两个点相等
/// </summary>
/// <param name="point1">点1</param>
/// <param name="point2">点2</param>
/// <param name="tolerance">误差</param>
/// <returns>两个点是否相等</returns>
ArePointEquals(this Point3d point1, Point3d point2, double tolerance)

Editor类扩展

/// <summary>
/// 将AutoCAD编辑器的视图缩放到指定的3D范围。
/// </summary>
/// <param name="ed">AutoCAD编辑器对象。</param>
/// <param name="ext">要缩放的3D范围。</param>
/// <exception cref="ArgumentNullException">当编辑器对象为null时抛出。</exception>
/// <remarks>
/// 此方法将根据提供的3D范围调整编辑器的视图，使得该范围完全显示在视图中。
/// 它首先获取当前的视图记录，然后计算一个转换矩阵，将世界坐标转换为视图坐标。
/// 接着，它使用这个矩阵来转换提供的范围，并更新视图记录的宽度和高度以及中心点。
/// 最后，它将更新后的视图记录设置回编辑器，实现视图的缩放。
/// </remarks>
Zoom(this Editor ed, Extents3d ext)
/// <summary>
/// 缩放
/// </summary>
/// <param name="ed">AutoCAD编辑器对象</param>
ZoomExtents(this Editor ed)
/// <summary>
/// 选择一个实体
/// </summary>
/// <param name="ed">Editor</param>
/// <param name="message">提示信息</param>
/// <param name="type">类型</param>
/// <returns>实体Id</returns>
GetEntity_(this Editor ed, string message, Type type = null)
/// <summary>
/// 获取选择
/// </summary>
/// <param name="ed">editor</param>
/// <param name="message">提示信息</param>
/// <returns>实体id列表</returns>
GetSelection_(this Editor ed, string message)
/// <summary>
/// 选择一个点
/// </summary>
/// <returns>3d点</returns>
GetPoint()
/// <summary>
/// 选择实体（只选择线和多段线）
/// </summary>
/// <param name="ed">AutoCAD编辑器对象</param>
/// <param name="message">提示信息</param>
/// <returns>用户选择集</returns>
GetSelectionLineAndPolyLine(this Editor ed, string message, string layerName = "")
/// <summary>
/// 获取圆、圆弧
/// </summary>
/// <param name="doc">当前文档</param>
/// <returns></returns>
SelectAllCircleArcs(this Document doc)
/// <summary>
/// 获取圆、圆弧中心、半径
/// </summary>
/// <param name="objectIds"></param>
/// <returns>中心、半径</returns>
GetCircleArcCenterRadius(this Document doc, ObjectId[] objectIds)
/// <summary>
/// 获取直线
/// </summary>
/// <param name="doc">当前文档</param>
/// <returns>直线列表</returns>
SelectLines(this Document doc)
/// <summary>
/// 获得用户输入(Double)
/// </summary>
/// <param name="message">提示信息</param>
/// <param name="value">默认值</param>
/// <returns>值</returns>
GetUserDouble(this string message, double value)
/// <summary>
/// 输入过滤类型,获得选择集
/// </summary>
/// <param name="type">过滤类型</param>
/// <returns>选择集</returns>
GetSelectionEx(TypedValue[] type = null)
/// <summary>
/// 获得用户输入(String
/// </summary>
/// <param name="message"></param>
/// <returns>用户输入</returns>
GetUserMessage(this string message)
/// <summary>
/// 获得用户输入(Point3d
/// </summary>
/// <param name="message">提示信息</param>
/// <returns>点</returns>
GetPoint(this string message)
/// <summary>
/// 通过过滤器获取实体
/// </summary>
/// <param name="ed">editor</param>
/// <param name="type">过滤类型</param>
/// <returns>实体</returns>
GetSelectionEntity(this Editor ed, TypedValue[] type = null)

Layer类扩展

/// <summary>
/// 获取图层名
/// </summary>
/// <param name="trans">事务</param>
/// <param name="doc">获取当前活动文档</param>
/// <returns>图层名字列表</returns>
GetAllLayerName(this Transaction trans, Document doc)
/// <summary>
/// 创建一个新的图层
/// </summary>
/// <param name="db">Database</param>
/// <param name="layerName">图层名</param>
/// <returns>新添加的层表记录的ObjectId</returns>
AddLayer(this Database db, string layerName)
/// <summary>
/// 添加图层
/// </summary>
/// <param name="layName">图层名</param>
/// <param name="Index">图层颜色index</param>
AddLayer(this string layName, int Index)
/// <summary>
/// 修改指定图层的颜色
/// </summary>
/// <param name="db">图形数据库</param>
/// <param name="layerName">图层名</param>
/// <param name="colorIndex">颜色索引值</param>
/// <returns>设置图层是否成功</returns>
SetLayerColor(this Database db, string layerName, short colorIndex)
/// <summary>
/// 获取当前图形中所有的图层
/// </summary>
/// <param name="db">图像数据库</param>
/// <returns>所有图层记录表</returns>
GetAllLayers(this Database db)
/// <summary>
/// 删除指定名称的图层
/// </summary>
/// <param name="db">图形数据库</param>
/// <param name="layerName">要删除的图层名</param>
/// <returns>是否删除成功</returns>
DeleteLayer(this Database db, string layerName)
/// <summary>
/// 设置指定实体的图层名称和颜色。
/// </summary>
/// <typeparam name="TEntity">实体类型，必须继承自AutoCAD的Entity类。</typeparam>
/// <param name="entity">要设置图层和颜色的实体对象。</param>
/// <param name="layerName">要分配给实体的图层名称。</param>
/// <param name="red">颜色值的红色分量，范围在0到255之间。</param>
/// <param name="green">颜色值的绿色分量，范围在0到255之间。</param>
/// <param name="blue">颜色值的蓝色分量，范围在0到255之间。</param>
/// <param name="trans">当前的事务对象，用于管理对图形数据库的修改。</param>
/// <param name="doc">当前的文档对象，包含图形数据库和其他文档属性。</param>
SetLayer<TEntity>(this TEntity entity, string layerName, byte red, byte green, byte blue,
            Transaction trans, Document doc)
/// <summary>
/// 更改指定实体的图层名称。如果图层不存在，则创建新的图层。
/// </summary>
/// <param name="entity">要更改图层的实体对象。</param>
/// <param name="layerName">要分配给实体的新图层名称。</param>
ChangeEntityLayer(this Entity entity, string layerName)

Block类扩展

/// <summary>
/// 创建一个块并添加到数据库中
/// </summary>
/// <param name="db">图形数据库</param>
/// <param name="blockName">块名</param>
/// <param name="ents">实体列表</param>
/// <returns>块表记录的Id</returns>
AddBlockTableRecord(this Database db, string blockName, List<Entity> ents)
/// <summary>
/// 在Cad图形中插入参照块
/// </summary>
/// <param name="spaceId">表示块参照要加入的模型空间或图纸空间的Id</param>
/// <param name="layer">块参照要加入的图层名</param>
/// <param name="blockName">块参照所属的块名</param>
/// <param name="position">插入点</param>
/// <param name="scale">缩放比例</param>
/// <param name="rotateAngle">旋转角度</param>
/// <returns>实体Id</returns>
InsertBlockReference(this ObjectId spaceId, string layer, string blockName, Point3d position, Scale3d scale, double rotateAngle = 0)
/// <summary>
/// 块参照添加属性实体
/// </summary>
/// <param name="blockId">块表</param>
/// <param name="atts">要加入的块属性列表</param>
AddAttributeToBlock(this ObjectId blockId, List<AttributeDefinition> atts)
/// <summary>
/// Cad图形中插入带属性的块参照
/// </summary>
/// <param name="spaceId">块参照要加入的模型空间或图纸空间的Id</param>
/// <param name="layer">块参照要加入的图层名</param>
/// <param name="blockName">块参照所属的块名</param>
/// <param name="position">插入点</param>
/// <param name="scale">缩放比例</param>
/// <param name="rotateAngle">旋转角度</param>
/// <param name="attNameValues">表示属性的名称与取值</param>
/// <returns>实体Id</returns>
InsertBlockReference(this ObjectId spaceId, string layer, string blockName, Point3d position, Scale3d scale, double rotateAngle, Dictionary<string, string> attNameValues)
/// <summary>
/// 更新块参照中的属性值
/// </summary>
/// <param name="blockRefId">块参照Id</param>
/// <param name="attNameValues">需要更新的属性名称与取值</param>
UpdateAttributeInBlock(this ObjectId blockRefId, Dictionary<string, string> attNameValues)
/// <summary>
/// 设置属性定义的通用样式
/// </summary>
/// <param name="att">属性</param>
/// <param name="invisible">属性文字的可见性</param>
SetStyleForAtt(this AttributeDefinition att, bool invisible)
/// <summary>
/// 读取块中的属性值
/// </summary>
/// <param name="db">图像数据库</param>
/// <param name="blockName">块名</param>
/// <returns>属性</returns>
ReadDataInBlock(this Database db, string blockName)
/// <summary>
/// 获取动态块的动态属性值
/// </summary>
/// <param name="blockId">动态快的ObjectId</param>
/// <param name="propName">需要查找的动态属性名</param>
/// <returns>动态属性值</returns>
GetDynamicBlockValue(this ObjectId blockId, string propName)
/// <summary>
/// 获得动态块的所有动态属性
/// </summary>
/// <param name="blockId">动态块的ObjectId</param>
/// <returns>动态属性</returns>
GetDynProperties(this ObjectId blockId)
/// <summary>
/// 设置动态块的动态属性
/// </summary>
/// <param name="blockId">动态块的ObjectId</param>
/// <param name="propName">动态属性的名称</param>
/// <param name="value">动态属性的值</param>
SetDynamicBlockValue(this ObjectId blockId, string propName, object value)
/// <summary>
/// 获取特定类型的所有实体
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="db"></param>
/// <param name="mode"></param>
/// <param name="OpenErased"></param>
/// <returns>类型为T的实体列表</returns>
GetEntsInDatabase<T>(this Database db, OpenMode mode, bool OpenErased)
/// <summary>
/// 只需要以读的方式获取数据库中特定类型的实体
/// </summary>
/// <typeparam name="T">实体</typeparam>
/// <param name="db">图像数据库</param>
/// <returns>实体列表</returns>
GetEntsInDatabase<T>(this Database db)
/// <summary>
/// 获取特定类型(模型空间中)的所有实体,
/// </summary>
/// <typeparam name="T">实体</typeparam>
/// <param name="db"></param>
/// <param name="mode"></param>
/// <param name="OpenErased"></param>
/// <returns>类型为T的实体列表</returns>
GetEntsInModelSpace<T>(this Database db, OpenMode mode, bool OpenErased)
/// <summary>
/// 获取动态块/非动态块的块名
/// </summary>
/// <param name="bref">块参照对象，用于获取块名</param>
/// <returns>返回块名字符串，如果块参照不存在则返回null</returns>
GetBlockName(this BlockReference bref)
/// <summary>
/// 动态块的读取(Dwg)
/// </summary>
/// <param name="blockDWGName">dwg文件名</param>
/// <param name="blockName">动态块名</param>
InitialZwBlockReference(this string blockDWGName, string blockName)
/// <summary>
/// 根据想要显示的值去显示
/// </summary>
/// <param name="br">块参照对象</param>
/// <param name="blockName">块名</param>
CheckBlockPropertyValue(this BlockReference br, string blockName)
/// <summary>
/// 修改动态块属性
/// </summary>
/// <param name="blockName">动态块名</param>
/// <param name="paramName">修改的属性名</param>
/// <param name="paramValue">修改的属性值</param>
/// <param name="trans">事物</param>
ModifyDynamicBlockParameter(this string blockName, string paramName, object paramValue, Transaction trans)
/// <summary>
/// 从外部文件导入快
/// </summary>
/// <param name="destDb">目标数据库</param>
/// <param name="sourceFileName">包含完整路径的外部文件名</param>
ImportBlocksFromDwg(this Database destDb, string sourceFileName)
/// <summary>
/// 找到自定义属性的类型
/// </summary>
/// <param name="doc">Document</param>
/// <param name="blockName">块名</param>
GetPropType(this Document doc, string blockName)
/// <summary>
/// 动态快个数
/// </summary>
/// <param name="doc">当前文档</param>
RecursionBlock(this Document doc)
/// <summary>
/// 递归块引用
/// </summary>
/// <param name="refblock">块参照</param>
/// <returns></returns>
GetBlockEntity(this BlockReference refblock)
/// <summary>
/// 插入一个块
/// </summary>
/// <param name="doc">文档</param>
/// <param name="message">提示消息</param>
/// <returns></returns>
InsertBlock(this Document doc, string message = "请输入块名称")
/// <summary>
/// 创建一个块
/// </summary>
/// <param name="doc">当前文档</param>
/// <param name="message">提示信息</param>
/// <returns>实体</returns>
CreateBlock(this Document doc, string message)

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