using System;
using System.Text;
using System.Linq;
using System.Xml;
using System.Reflection;
using System.ComponentModel;
using System.Collections;
using System.Collections.Generic;
using System.Diagnostics;
using System.Windows;
using System.Windows.Media.Imaging;
using System.Windows.Forms;
using System.Drawing;
using System.IO;
using Autodesk.AutoCAD.ApplicationServices;
using Autodesk.AutoCAD.DatabaseServices;
using Autodesk.AutoCAD.Runtime;
using Autodesk.AutoCAD.EditorInput;
using Autodesk.AutoCAD.Geometry;
using Autodesk.AutoCAD.Windows;
using MgdAcApplication = Autodesk.AutoCAD.ApplicationServices.Application;
using MgdAcDocument = Autodesk.AutoCAD.ApplicationServices.Document;
using AcWindowsNS = Autodesk.AutoCAD.Windows;
#endregion
namespace AcadNetCSharp
{
public class MLeaderJigger4 : EntityJig
{
#region Fields
private const string BlockName = "tagAtt";
public static string TagContent = "";
public int mCurJigFactorIndex = 1;// Jig Factor Index
public Autodesk.AutoCAD.Geometry.Point3d mArrowLocation; // Jig Factor #1
public Autodesk.AutoCAD.Geometry.Point3d mLandingLocation; // Jig Factor #2
#endregion
#region Constructors
public MLeaderJigger4(MLeader ent)
: base(ent)
{
Entity.SetDatabaseDefaults();
Entity.ContentType = ContentType.BlockContent;
Database db = HostApplicationServices.WorkingDatabase;
using (Transaction tr = db.TransactionManager.StartTransaction())
{
BlockTable bt = (BlockTable)tr.GetObject(db.BlockTableId, OpenMode.ForRead);
Entity.BlockContentId = bt;
BlockTableRecord btr = (BlockTableRecord)tr.GetObject(Entity.BlockContentId, OpenMode.ForWrite);
if (btr.HasAttributeDefinitions)
{
foreach (ObjectId id in btr)
{
DBObject obj = tr.GetObject(id, OpenMode.ForRead);
if (obj is AttributeDefinition)
{
AttributeDefinition ad = obj as AttributeDefinition;
AttributeReference ar = new AttributeReference();
ar.SetAttributeFromBlock(ad, Matrix3d.Displacement(Entity.BlockPosition - Point3d.Origin));
ar.TextString = TagContent;
Entity.SetBlockAttribute(id, ar);
}
}
}
tr.Commit();
}
Entity.EnableDogleg = true;
Entity.EnableLanding = true;
Entity.EnableFrameText = false;
Entity.AddLeaderLine(mLandingLocation);
Entity.SetFirstVertex(0, mArrowLocation);
Entity.TransformBy(UCS);
}
#endregion
#region Properties
private Editor Editor
{
get
{
return MgdAcApplication.DocumentManager.MdiActiveDocument.Editor;
}
}
private Matrix3d UCS
{
get
{
return MgdAcApplication.DocumentManager.MdiActiveDocument.Editor.CurrentUserCoordinateSystem;
}
}
#endregion
#region Overrides
public new MLeader Entity// Overload the Entity property for convenience.
{
get
{
return base.Entity as MLeader;
}
}
protected override bool Update()
{
switch (mCurJigFactorIndex)
{
case 1:
Entity.SetFirstVertex(0, mArrowLocation);
Entity.SetLastVertex(0, mArrowLocation);
break;
case 2:
Entity.SetLastVertex(0, mLandingLocation);
break;
default:
return false;
}
return true;
}
protected override SamplerStatus Sampler(JigPrompts prompts)
{
switch (mCurJigFactorIndex)
{
case 1:
JigPromptPointOptions prOptions1 = new JigPromptPointOptions("\nArrow Location:");
// Set properties such as UseBasePoint and BasePoint of the prompt options object if necessary here.
prOptions1.UserInputControls = UserInputControls.Accept3dCoordinates | UserInputControls.GovernedByOrthoMode | UserInputControls.GovernedByUCSDetect | UserInputControls.UseBasePointElevation;
PromptPointResult prResult1 = prompts.AcquirePoint(prOptions1);
if (prResult1.Status == PromptStatus.Cancel && prResult1.Status == PromptStatus.Error)
return SamplerStatus.Cancel;
if (prResult1.Value.Equals(mArrowLocation))//Use better comparison method if necessary.
{
return SamplerStatus.NoChange;
}
else
{
mArrowLocation = prResult1.Value;
return SamplerStatus.OK;
}
case 2:
JigPromptPointOptions prOptions2 = new JigPromptPointOptions("\nLanding Location:");
// Set properties such as UseBasePoint and BasePoint of the prompt options object if necessary here.
prOptions2.UseBasePoint = true;
prOptions2.BasePoint = mArrowLocation;
prOptions2.UserInputControls = UserInputControls.Accept3dCoordinates | UserInputControls.GovernedByOrthoMode | UserInputControls.GovernedByUCSDetect | UserInputControls.UseBasePointElevation;
PromptPointResult prResult2 = prompts.AcquirePoint(prOptions2);
if (prResult2.Status == PromptStatus.Cancel && prResult2.Status == PromptStatus.Error)
return SamplerStatus.Cancel;
if (prResult2.Value.Equals(mLandingLocation))//Use better comparison method if necessary.
{
return SamplerStatus.NoChange;
}
else
{
mLandingLocation = prResult2.Value;
return SamplerStatus.OK;
}
default:
break;
}
return SamplerStatus.OK;
}
#endregion
#region Methods to Call
public static MLeader Jig()
{
MLeaderJigger4 jigger = null;
try
{
jigger = new MLeaderJigger4(new MLeader());
PromptResult pr;
do
{
pr = MgdAcApplication.DocumentManager.MdiActiveDocument.Editor.Drag(jigger);
if (pr.Status == PromptStatus.Keyword)
{
// Keyword handling code
}
else
{
jigger.mCurJigFactorIndex++;
}
} while (pr.Status != PromptStatus.Cancel && pr.Status != PromptStatus.Error && jigger.mCurJigFactorIndex <= 2);
if (pr.Status == PromptStatus.Cancel || pr.Status == PromptStatus.Error)
{
if (jigger != null && jigger.Entity != null)
jigger.Entity.Dispose();
return null;
}
return jigger.Entity;
}
catch(System.Exception ex)
{
MgdAcApplication.DocumentManager.MdiActiveDocument.Editor.WriteMessage(ex.ToString());
if (jigger != null && jigger.Entity != null)
jigger.Entity.Dispose();
return null;
}
}
#endregion
#region Test Commands
public static void TestMLeaderJigger4_Method()
{
try
{
TagContent = MgdAcApplication.DocumentManager.MdiActiveDocument.Editor.GetString("\nTag: ").StringResult;
Entity jigEnt = MLeaderJigger4.Jig();
if (jigEnt != null)
{
Database db = HostApplicationServices.WorkingDatabase;
using (Transaction tr = db.TransactionManager.StartTransaction())
{
BlockTableRecord btr = (BlockTableRecord)tr.GetObject(db.CurrentSpaceId, OpenMode.ForWrite);
btr.AppendEntity(jigEnt);
tr.AddNewlyCreatedDBObject(jigEnt, true);
tr.Commit();
}
}
}
catch (System.Exception ex)
{
MgdAcApplication.DocumentManager.MdiActiveDocument.Editor.WriteMessage(ex.ToString());
}
}
#endregion
}
}
The workflow and output may look like the following:
https://spiderinnet1.typepad.com/.a/6a0153928ee38e970b01bb084d0f02970d-800wi
As can be seen, the block attribute value (tag) is collected first so that the tag with the exact string value can be jigged nicely along with the arrow, leader line, and standing line. The UCS is still perfectly honored. Before running the jig test code, please make sure a block named “tagAtt” exists and it has at least a block attribute defined. The block attribute can have any tag name. If multiple block attributes defined, all of them will have the value as input at the beginning of the jigging.
用vlisp可以轻松定义和修改mleader的文字内容。
个人好奇的是：vb.net开发插件，可以实现非模态窗口，和动态显示编辑里的功能（如移动旋转吗）
vb net的学习容易吗？ qq1254582201 发表于 2025-4-16 17:08
AutoCAD .NET: MultiLeader (MLeader) Jig 4 – Jigging Block with AttributeWe provided various jig imp ...
这篇有很多误导人的错误代码 sdh123321 发表于 2025-4-17 08:59
用vlisp可以轻松定义和修改mleader的文字内容。
个人好奇的是：vb.net开发插件，可以实现非模态窗口，和动 ...
学C#吧,不然你享受不到IFox和我的博客,
.NET肯定都可以实现非模态窗口,你的问题都不是什么难题
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