[求助]为什么属性不能显示出来？
各位专家，以下程序先生成由一个圆和标记为"Height”、"DotMake"的两个属性文字组成的块，然后再选取点插入这个属性块，但是只有圆显示出来，属性文字没有显示出来，请问这是为什么？using System;using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Autodesk.AutoCAD.ApplicationServices;
using Autodesk.AutoCAD.DatabaseServices;
using Autodesk.AutoCAD.EditorInput;
using Autodesk.AutoCAD.Geometry;
using Autodesk.AutoCAD.Runtime;
using Autodesk.AutoCAD.Colors;
namespace Ctest
{
public class Class1
{
public void test()
{
ObjectId TkId = CreateB2();
Document acDoc = Application.DocumentManager.MdiActiveDocument;
PromptPointResult pPtRes;
PromptPointOptions pPtOpts = new PromptPointOptions("\n请指定块的插入点<按ESC键结束>: ");
pPtOpts.UseBasePoint = false;
bool Pdbz = true;
int i = 1;
while (Pdbz == true)
{
pPtRes = acDoc.Editor.GetPoint(pPtOpts);
Point3d ptCrd = pPtRes.Value;
if (pPtRes.Status == PromptStatus.OK)
{
InsertB2(TkId, i.ToString(), (1000 * i).ToString(), ptCrd);
i = i + 1;
}
else
{
Pdbz = false;
}
}
}
//生成B2"图块
public ObjectId CreateB2()
{
ObjectId newBtrId = new ObjectId();
Database db = HostApplicationServices.WorkingDatabase;
Transaction trans = db.TransactionManager.StartTransaction();
Editor ed = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument.Editor;
try
{
BlockTable bt = (BlockTable)trans.GetObject(db.BlockTableId, OpenMode.ForWrite);
if ((bt.Has("B2")))
{
newBtrId = bt["B2"];
}
else
{
Point3d center = new Point3d(0.0, 0.0, 0.0);
Circle circle = new Circle(center, Vector3d.ZAxis, 0.5);
circle.ColorIndex = 1;
AttributeDefinition text1 = new AttributeDefinition(new Point3d(0.5, 0.0, 0.0), "", "Height", "", db.Textstyle);
text1.ColorIndex = 1;
text1.Height = 1.0;
text1.HorizontalMode = TextHorizontalMode.TextLeft;
text1.VerticalMode = TextVerticalMode.TextBottom;
AttributeDefinition text2 = new AttributeDefinition(new Point3d(0.5, 0.0, 0.0), "", "DotMake", "", db.Textstyle);
text2.ColorIndex = 3;
text2.Height = 1.0;
text2.HorizontalMode = TextHorizontalMode.TextLeft;
text2.VerticalMode = TextVerticalMode.TextTop;
BlockTableRecord newBtr = new BlockTableRecord();
newBtr.Name = "B2";
newBtrId = bt.Add(newBtr);
trans.AddNewlyCreatedDBObject(newBtr, true);
newBtr.AppendEntity(circle);
newBtr.AppendEntity(text1);
newBtr.AppendEntity(text2);
trans.AddNewlyCreatedDBObject(circle, true);
trans.AddNewlyCreatedDBObject(text1, true);
trans.AddNewlyCreatedDBObject(text2, true);
}
trans.Commit();
}
catch
{
ed.WriteMessage("生成B2图块出错!");
}
finally
{
trans.Dispose();
}
return newBtrId;
}
//插入名为"B2"块参照到模型空间
public ObjectId InsertB2(ObjectId XBId, string Xstr1, string Xstr2, Point3d pos)
{
Database db = HostApplicationServices.WorkingDatabase;
Transaction trans = db.TransactionManager.StartTransaction();
try
{
BlockTable bt = (BlockTable)(trans.GetObject(db.BlockTableId, OpenMode.ForWrite));
BlockTableRecord btr = (BlockTableRecord)trans.GetObject(bt, OpenMode.ForWrite);
BlockReference br = new BlockReference(pos, XBId);
AttributeReference attRef = new AttributeReference();
BlockTableRecord empBtr = (BlockTableRecord)trans.GetObject(bt["B2"], OpenMode.ForRead);
foreach (ObjectId id in empBtr)
{
Entity ent = (Entity)trans.GetObject(id, OpenMode.ForRead, false);
if (ent is AttributeDefinition)
{
AttributeDefinition attDef = ((AttributeDefinition)(ent));
attRef.SetPropertiesFrom(attDef);
attRef.Position = new Point3d(0.5 + br.Position.X, 0.0 + br.Position.Y, 0.0 + br.Position.Z);
if ((string)attRef.Tag == "Height")
{
attRef.TextString = Xstr1;
attRef.HorizontalMode = TextHorizontalMode.TextLeft;
attRef.VerticalMode = TextVerticalMode.TextBottom;
}
else
{
attRef.TextString = Xstr2;
attRef.HorizontalMode = TextHorizontalMode.TextLeft;
attRef.VerticalMode = TextVerticalMode.TextTop;
}
}
}
btr.AppendEntity(br);
br.AttributeCollection.AppendAttribute(attRef);
trans.AddNewlyCreatedDBObject(attRef, true);
trans.AddNewlyCreatedDBObject(br, true);
trans.Commit();
return br.ObjectId;
}
finally
{
trans.Dispose();
}
}
}
}
你看下原点处有没一个属性，，
注意
1.你的属性加入数据库在循环外，只针对最后一个
2.除默认样式外 其他样式要设置对齐点 且在设置样式后设置点
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