c# cad 二次开发 类库 块的操作
c# cad 二次开发 类库 块的操作
using Autodesk.AutoCAD.ApplicationServices;
using Autodesk.AutoCAD.DatabaseServices;
using Autodesk.AutoCAD.EditorInput;
using Autodesk.AutoCAD.Geometry;
using Autodesk.AutoCAD.Runtime;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace _14块操作
{
public class Class1
{
//简单块
[CommandMethod(“BlockDemo”)]
public void BlockDemo()
{
Database db = HostApplicationServices.WorkingDatabase;
//using (Transaction trans = db.TransactionManager.StartTransaction())
//{
// BlockTable bt = (BlockTable)trans.GetObject(db.BlockTableId, OpenMode.ForRead);
// foreach (var item in bt)
// {
// BlockTableRecord btr = (BlockTableRecord)item.GetObject(OpenMode.ForRead);
// }
//}
MyBlockTableRecord.Block1Id = db.AddBlockTableRecord(MyBlockTableRecord.Block1Name, MyBlockTableRecord.Block1Ents);
}
[CommandMethod("InsertBlockDemo")]
public void InsertBlockDemo()
{
Database db = HostApplicationServices.WorkingDatabase;
db.InsertBlockBlockReference(MyBlockTableRecord.Block1Id, new Point3d(10, 10, 0));
db.InsertBlockBlockReference(MyBlockTableRecord.Block1Id, new Point3d(40, 10, 0),Math.PI/4,new Scale3d(2));
db.InsertBlockBlockReference(MyBlockTableRecord.Block1Id, new Point3d(100, 10, 0), Math.PI / 4, new Scale3d(2,1.5,1));
}
//注释样式的箭头
[CommandMethod("ModifyDimDemo")]
public void ModifyDimDemo()
{
Database db = HostApplicationServices.WorkingDatabase;
MyBlockTableRecord.DimBlock1Id = db.AddBlockTableRecord(MyBlockTableRecord.DimBlock1Name, MyBlockTableRecord.DimBlock1Ents);
using (Transaction trans = db.TransactionManager.StartTransaction())
{
DimStyleTable dst = (DimStyleTable)trans.GetObject(db.DimStyleTableId, OpenMode.ForRead);
if (dst.Has("Standard"))
{
DimStyleTableRecord dstr = (DimStyleTableRecord)dst["Standard"].GetObject(OpenMode.ForRead);
if (MyBlockTableRecord.DimBlock1Id != ObjectId.Null)
{
dstr.UpgradeOpen();
dstr.Dimblk = MyBlockTableRecord.DimBlock1Id;
dstr.Dimasz = 1;
dstr.DowngradeOpen();
db.SetDimstyleData(dstr);
}
}
trans.Commit();
}
}
//属性快
[CommandMethod("AttrBlockDemo")]
public void AttrBlockDemo()
{
Database db = HostApplicationServices.WorkingDatabase;
MyBlockTableRecord.AttrBlock1Id = db.AddBlockTableRecord(MyBlockTableRecord.AttrBlock1Name, MyBlockTableRecord.AttrBlock1Ents);
ObjectId brId = db.InsertAttrBlockReference(MyBlockTableRecord.AttrBlock1Id, new Point3d(10, 10, 0), 0, new Scale3d(1, 1, 1));
Dictionary attrNameValues = new Dictionary();
attrNameValues.Add("编号", "天线11");
attrNameValues.Add("功率", "10.0dBm");
attrNameValues.Add("功率222", "10.0dBm");
brId.UpdateBlockAttr(attrNameValues);
}
[CommandMethod("TestDemo")]
public void TestDemo()
{
Database db = HostApplicationServices.WorkingDatabase;
MyBlockTableRecord.AttrBlock1Id = db.AddBlockTableRecord(MyBlockTableRecord.AttrBlock1Name, MyBlockTableRecord.AttrBlock1Ents);
using (Transaction trans = db.TransactionManager.StartTransaction())
{
BlockTable bt = (BlockTable)trans.GetObject(db.BlockTableId, OpenMode.ForRead);
//DimStyleTable dst = (DimStyleTable)trans.GetObject(db.DimStyleTableId, OpenMode.ForRead);
//if (dst.Has("Standard"))
//{
// DimStyleTableRecord dstr = (DimStyleTableRecord)dst["Standard"].GetObject(OpenMode.ForRead);
//}
foreach (var item in bt)
{
if (bt.Has(MyBlockTableRecord.AttrBlock1Id))
{
if (item == MyBlockTableRecord.AttrBlock1Id)
{
BlockTableRecord btr = (BlockTableRecord)item.GetObject(OpenMode.ForRead);
foreach (var item1 in btr)
{
if (item1.GetObject(OpenMode.ForRead) is AttributeDefinition)
{
AttributeDefinition attr = (AttributeDefinition)item1.GetObject(OpenMode.ForRead);
}
}
}
}
}
}
}
[CommandMethod("PickDemo")]
public void PickDemo()
{
Database db = HostApplicationServices.WorkingDatabase;
Editor ed = Application.DocumentManager.MdiActiveDocument.Editor;
PromptEntityResult per = ed.GetEntity("选择块");
if (per.Status == PromptStatus.OK)
{
using (Transaction trans = db.TransactionManager.StartTransaction())
{
BlockReference br = (BlockReference)per.ObjectId.GetObject(OpenMode.ForRead);
}
}
}
}
}
BlockTool.cs
using Autodesk.AutoCAD.DatabaseServices;
using Autodesk.AutoCAD.Geometry;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace _14块操作
{
public static class BlockTool
{
///
/// 添加块表记录到图形数据库
///
/// 图形数据库
/// 块表记录名
/// 图形对象
/// ObjectId
public static ObjectId AddBlockTableRecord(this Database db, string btrName, List ents)
{
ObjectId btrId = ObjectId.Null;
using (Transaction trans = db.TransactionManager.StartTransaction())
{
BlockTable bt = (BlockTable)trans.GetObject(db.BlockTableId, OpenMode.ForRead);
if (!bt.Has(btrName))
{
BlockTableRecord btr = new BlockTableRecord();
btr.Name = btrName;
for (int i = 0; i < ents.Count; i++)
{
btr.AppendEntity(ents[i]);
}
bt.UpgradeOpen();
bt.Add(btr);
trans.AddNewlyCreatedDBObject(btr, true);
bt.DowngradeOpen();
}
btrId = bt[btrName];
trans.Commit();
}
return btrId;
}
///
/// 向模型空间插入块参照
///
/// 图形数据库
/// 块的ObjectId
/// 插入位置
/// ObjectId
public static ObjectId InsertBlockBlockReference(this Database db, ObjectId blockRecordId, Point3d position)
{
ObjectId blkReferId = ObjectId.Null;
using (Transaction trans = db.TransactionManager.StartTransaction())
{
BlockTable bt = (BlockTable)trans.GetObject(db.BlockTableId, OpenMode.ForRead);
if (bt.Has(blockRecordId))
{
//声明块参照
BlockReference br = new BlockReference(position, blockRecordId);
BlockTableRecord btr = (BlockTableRecord)trans.GetObject(bt[BlockTableRecord.ModelSpace], OpenMode.ForWrite);
blkReferId = btr.AppendEntity(br);
trans.AddNewlyCreatedDBObject(br, true);
}
trans.Commit();
}
return blkReferId;
}
///
/// 向模型空间插入块参照
///
/// 图形数据库
/// 块的ObjectId
/// 插入位置
/// 旋转角度
/// 缩放比例
/// ObjectId
public static ObjectId InsertBlockBlockReference(this Database db, ObjectId blockRecordId, Point3d position,double rotation,Scale3d scale)
{
ObjectId blkReferId = ObjectId.Null;
using (Transaction trans = db.TransactionManager.StartTransaction())
{
BlockTable bt = (BlockTable)trans.GetObject(db.BlockTableId, OpenMode.ForRead);
if (bt.Has(blockRecordId))
{
BlockReference br = new BlockReference(position, blockRecordId);
br.Rotation = rotation;
br.ScaleFactors = scale;
BlockTableRecord btr = (BlockTableRecord)trans.GetObject(bt[BlockTableRecord.ModelSpace], OpenMode.ForWrite);
blkReferId = btr.AppendEntity(br);
trans.AddNewlyCreatedDBObject(br, true);
}
trans.Commit();
}
return blkReferId;
}
///
/// 向模型空间插入属性块参照
///
/// 图形数据库
/// 块的ObjectId
/// 插入位置
/// 旋转角度
/// 缩放比例
/// ObjectId
public static ObjectId InsertAttrBlockReference(this Database db, ObjectId blockRecordId, Point3d position, double rotation, Scale3d scale)
{
ObjectId blkReferId = ObjectId.Null;
using (Transaction trans = db.TransactionManager.StartTransaction())
{
BlockTable bt = (BlockTable)trans.GetObject(db.BlockTableId, OpenMode.ForRead);
if (bt.Has(blockRecordId))
{
//声明块参照
BlockReference br = new BlockReference(position, blockRecordId);
br.Rotation = rotation;
br.ScaleFactors = scale;
BlockTableRecord btr = (BlockTableRecord)trans.GetObject(bt[BlockTableRecord.ModelSpace], OpenMode.ForWrite);
blkReferId = btr.AppendEntity(br);
//添加属性定义
BlockTableRecord blockRecord = (BlockTableRecord)blockRecordId.GetObject(OpenMode.ForRead);
if (blockRecord.HasAttributeDefinitions)
{
foreach (ObjectId item in blockRecord)
{
DBObject obj = item.GetObject(OpenMode.ForRead);
if (obj is AttributeDefinition)
{
//声明属性参照
AttributeReference attrRef = new AttributeReference();
attrRef.SetAttributeFromBlock((AttributeDefinition)obj, br.BlockTransform);
br.AttributeCollection.AppendAttribute(attrRef);
trans.AddNewlyCreatedDBObject(attrRef, true);
}
}
}
trans.AddNewlyCreatedDBObject(br, true);
}
trans.Commit();
}
return blkReferId;
}
///
/// 更新块参照的属性
///
/// 块参照的ObjectId
/// 属性字典
public static void UpdateBlockAttr(this ObjectId BlockRefId, Dictionary attrNameValues)
{
using (Transaction trans = BlockRefId.Database.TransactionManager.StartTransaction())
{
if (BlockRefId != ObjectId.Null)
{
BlockReference br = (BlockReference)BlockRefId.GetObject(OpenMode.ForRead);
foreach (ObjectId item in br.AttributeCollection)
{
AttributeReference attRef = (AttributeReference)item.GetObject(OpenMode.ForRead);
//判断属性字典中是否包含要更改的属性值
if (attrNameValues.ContainsKey(attRef.Tag.ToString()))
{
attRef.UpgradeOpen();
attRef.TextString = attrNameValues[attRef.Tag.ToString()].ToString();
attRef.DowngradeOpen();
}
}
}
trans.Commit();
}
}
}
}