public void addVertex()
{
MLeader ml = Entity as MLeader;
// For the first point...
if (_mPts.Count == 0)
{
// Add a leader line
_mLeaderLineIndex = ml.AddLeaderLine(_mLeaderIndex);
// And a start vertex
ml.AddFirstVertex(_mLeaderLineIndex, _mTempPoint);
// Add a second vertex that will be set
// within the jig
ml.AddLastVertex(_mLeaderLineIndex, new Point3d(0, 0, 0));
}
else
{
// For subsequent points,
// just add a vertex
ml.AddLastVertex(_mLeaderLineIndex, _mTempPoint);
}
// Reset the attachment point, otherwise
// it seems to get forgotten
ml.TextAttachmentType = TextAttachmentType.AttachmentMiddle;
// Add the latest point to our history
_mPts.Add(_mTempPoint);
}
public void AddMLeader()
{
Database db = HostApplicationServices.WorkingDatabase;
using (Transaction trans = db.TransactionManager.StartTransaction())
{
//创建3个点，分别表示引线的终点和两个头点
Point3d ptEnd = new Point3d(90, 0, 0);
Point3d pt1 = new Point3d(80, 20, 0);
Point3d pt2 = new Point3d(100, 20, 0);
MText mtext = new MText
{
Contents = "多重引线示例" //文本内容
}; //新建多行文本
MLeader mleader = new MLeader(); //创建多重引线
//为多重引线添加引线束，引线束由基线和一些单引线构成
int leaderIndex = mleader.AddLeader();
//在引线束中添加一单引线
int lineIndex = mleader.AddLeaderLine(leaderIndex);
mleader.AddFirstVertex(lineIndex, pt1); //在单引线中添加引线头点
mleader.AddLastVertex(lineIndex, ptEnd); //在单引线中添加引线终点
//在引线束中再添加一单引线，并只设置引线头点
lineIndex = mleader.AddLeaderLine(leaderIndex);
mleader.AddFirstVertex(lineIndex, pt2);
//设置多重引线的注释为多行文本
mleader.ContentType = ContentType.MTextContent;
mleader.MText = mtext;
//将多重引线添加到模型空间
db.AddToModelSpace(mleader);
trans.Commit();
}
}
/// <summary>
/// Create an AutoCAD's MLeader's object by two points and text's string
/// </summary>
/// <param name="place_point"></param>
/// <param name="leader_line_start"></param>
/// <param name="leader_text"></param>
/// <param name="text_width"></param>
/// <param name="text_height"></param>
public static void CreateMLeaderByPoint(Autodesk.AutoCAD.DynamoNodes.Document doc_dyn, ds.Point place_point, ds.Point leader_line_start, string leader_text, double TextRotation = 0d, double LandingGap = 0.04, double text_width = 5, double text_height = 0.2, double arrow_size = 0.5)
{
/* Help docs
* http://bushman-andrey.blogspot.com/2013/01/blog-post.html
* https://adn-cis.org/kak-sozdat-multivyinosku-v-.net.html
* https://adn-cis.org/forum/index.php?topic=10503.msg49118#msg49118
*/
Document doc = doc_dyn.AcDocument;
//Document doc = Application.DocumentManager.MdiActiveDocument;
Database db = doc.Database;
Editor ed = doc.Editor;
using (Transaction Tx = db.TransactionManager.StartTransaction())
{
BlockTable table = Tx.GetObject(
db.BlockTableId,
OpenMode.ForRead)
as BlockTable;
BlockTableRecord model = Tx.GetObject(
table[BlockTableRecord.ModelSpace],
OpenMode.ForWrite)
as BlockTableRecord;
MLeader leader = new MLeader();
var temp_leader = leader.AddLeader();
//leader.SetArrowSize(0, arrow_size);
leader.ArrowSize = arrow_size;
leader.AddLeaderLine(temp_leader);
leader.AddFirstVertex(temp_leader, new Point3d(place_point.X, place_point.Y, 0.0));
leader.AddLastVertex(temp_leader, new Point3d(leader_line_start.X, leader_line_start.Y, 0.0));
leader.SetDatabaseDefaults();
leader.ContentType = ContentType.MTextContent;
leader.SetTextAttachmentType(
Autodesk.AutoCAD.DatabaseServices.TextAttachmentType.AttachmentBottomLine,
Autodesk.AutoCAD.DatabaseServices.LeaderDirectionType.LeftLeader);
MText mText = new MText();
mText.SetDatabaseDefaults();
mText.Width = text_width;
mText.Height = text_height;
mText.SetContentsRtf(leader_text);
mText.Rotation = TextRotation;
leader.MText = mText;
leader.LandingGap = LandingGap;
mText.BackgroundFill = false;
model.AppendEntity(leader);
Tx.AddNewlyCreatedDBObject(leader, true);
Tx.Commit();
}
}
public void AddRoadMLeader()
{
Database db = HostApplicationServices.WorkingDatabase;
//获取符号为点的箭头块的ObjectId
ObjectId arrowId = db.GetArrowObjectId(DimArrowBlock.Dot);
//如果当前图形中还未加入上述箭头块，则加入并获取其ObjectId
if (arrowId == ObjectId.Null)
{
DimTools.ArrowBlock = DimArrowBlock.Dot;
arrowId = db.GetArrowObjectId(DimArrowBlock.Dot);
}
//创建一个点列表，在其中添加4个要标注的点
List <Point3d> pts = new List <Point3d>();
pts.Add(new Point3d(150, 0, 0));
pts.Add(new Point3d(150, 15, 0));
pts.Add(new Point3d(150, 18, 0));
pts.Add(new Point3d(150, 20, 0));
//各标注点对应的文字
List <string> contents = new List <string> {
"道路中心线", "机动车道", "人行道", "绿化带"
};
using (Transaction trans = db.TransactionManager.StartTransaction())
{
for (int i = 0; i < pts.Count; i++) //遍历标注点
{
MText txt = new MText(); //创建多行文本
txt.Contents = contents[i]; //文本内容
MLeader mleader = new MLeader(); //创建多重引线
//为多重引线添加引线束，引线束由基线和一些单引线构成
int leaderIndex = mleader.AddLeader();
//在引线束中添加一单引线，并设置引线头点和终点
int lineIndex = mleader.AddLeaderLine(leaderIndex);
mleader.AddFirstVertex(lineIndex, pts[i]);
mleader.AddLastVertex(lineIndex, pts[0].PolarPoint(Math.PI / 2, 20 + (i + 1) * 5));
mleader.ArrowSymbolId = arrowId;//设置单引线的箭头块ObjectId
//设置多重引线的注释为多行文本
mleader.ContentType = ContentType.MTextContent;
mleader.MText = txt;
db.AddToModelSpace(mleader);
mleader.ArrowSize = 1; //多重引线箭头大小
mleader.DoglegLength = 0; //多重引线基线长度设为0
//将基线连接到引线文字的下方并且绘制下划线
mleader.TextAttachmentType = TextAttachmentType.AttachmentBottomLine;
}
trans.Commit();
}
}
public static void Create()
{
BaseClass.UseTransaction(trans =>
{
try
{
BaseClass.Editor.WriteMessage("\nDraw MLeader Exercise");
BlockTable bt;
bt = trans.GetObject(BaseClass.Database.BlockTableId, OpenMode.ForRead) as BlockTable;
BlockTableRecord btr;
btr = trans.GetObject(bt[BlockTableRecord.ModelSpace], OpenMode.ForWrite) as BlockTableRecord;
//send message to the user
BaseClass.Editor.WriteMessage("\nDrawing an Mleader object: ");
//specify mtext prameters
string txt = "Hello George";
Point3d insPt = new Point3d(200, 200, 0);
using (MLeader ldr = new MLeader())
{
ldr.ColorIndex = 1;
MText mtext = new MText();
using (mtext)
{
mtext.Contents = txt;
ldr.MText = mtext;
}
//adding leaders
int idx = ldr.AddLeaderLine(new Point3d(10, 20, 0));
ldr.AddFirstVertex(idx, new Point3d(0, 0, 0));
ldr.AddLastVertex(idx, new Point3d(55, 100, 0));
btr.AppendEntity(ldr); //add line to the BlockTabeReccord
trans.AddNewlyCreatedDBObject(ldr, true); //add to the transaction
}
}
catch (System.Exception ex)
{
BaseClass.Editor.WriteMessage("Error encountered: " + ex.Message);
trans.Abort();
}
});
}
protected override bool WorldDraw(WorldDraw draw)
{
var wg = draw.Geometry;
if (wg != null)
{
ObjectId arrId = AutocadHelpers.GetArrowObjectId(ArrowName);
var mtxt = new MText();
mtxt.SetDatabaseDefaults();
mtxt.Contents = MlText;
mtxt.Location = _secondPoint;
mtxt.Annotative = AnnotativeStates.True;
mtxt.TransformBy(AcApp.DocumentManager.MdiActiveDocument.Editor.CurrentUserCoordinateSystem);
_mleader = new MLeader();
var ldNum = _mleader.AddLeader();
_mleader.AddLeaderLine(ldNum);
_mleader.SetDatabaseDefaults();
_mleader.ContentType = ContentType.MTextContent;
_mleader.ArrowSymbolId = arrId;
_mleader.MText = mtxt;
_mleader.TextAlignmentType = TextAlignmentType.LeftAlignment;
_mleader.TextAttachmentType = TextAttachmentType.AttachmentBottomOfTopLine;
_mleader.TextAngleType = TextAngleType.HorizontalAngle;
_mleader.EnableAnnotationScale = true;
_mleader.Annotative = AnnotativeStates.True;
_mleader.AddFirstVertex(ldNum, FirstPoint);
_mleader.AddLastVertex(ldNum, _secondPoint);
_mleader.LeaderLineType = LeaderType.StraightLeader;
_mleader.EnableDogleg = false;
_mleader.DoglegLength = 0.0;
_mleader.LandingGap = 1.0;
_mleader.TextHeight = double.Parse(AcApp.GetSystemVariable("TEXTSIZE").ToString());
draw.Geometry.Draw(_mleader);
}
return(true);
}
public void AddCoordMLeader()
{
Database db = HostApplicationServices.WorkingDatabase;
//获取符号为无的箭头块的ObjectId
ObjectId arrowId = db.GetArrowObjectId(DimArrowBlock.None);
//如果当前图形中还未加入上述箭头块，则加入并获取其ObjectId
if (arrowId == ObjectId.Null)
{
DimTools.ArrowBlock = DimArrowBlock.None;
arrowId = db.GetArrowObjectId(DimArrowBlock.None);
}
using (Transaction trans = db.TransactionManager.StartTransaction())
{
Point3d ptCoord = new Point3d(80, 30, 0); //要标注的坐标点
MText mtext = new MText(); //新建多行文本
//设置多行文本的内容为点的坐标值，并且分两行表示
mtext.Contents = "X:" + ptCoord.X.ToString("0.000") + @"\PY:" + ptCoord.Y.ToString("0.000");
mtext.LineSpacingFactor = 0.8; //多行文本的行间距
MLeader leader = new MLeader(); //创建多重引线
//为多重引线添加引线束，引线束由基线和一些单引线构成
int leaderIndex = leader.AddLeader();
//在引线束中添加单引线
int lineIndex = leader.AddLeaderLine(leaderIndex);
//在单引线中添加引线头点（引线箭头所指向的点），位置为要进行标注的点
leader.AddFirstVertex(lineIndex, ptCoord);
//在单引线中添加引线终点
leader.AddLastVertex(lineIndex, ptCoord.PolarPoint(Math.PI / 4, 10));
//设置单引线的注释类型为多行文本
leader.ContentType = ContentType.MTextContent;
leader.MText = mtext;//设置单引线的注释文字
//将多重引线添加到模型空间
db.AddToModelSpace(leader);
leader.ArrowSymbolId = arrowId; //设置单引线的箭头块ObjectId
leader.DoglegLength = 0; //设置单引线的基线长度为0
//将基线连接到引线文字的下方并且绘制下划线
leader.TextAttachmentType = TextAttachmentType.AttachmentBottomOfTopLine;
trans.Commit();
}
}
protected override bool WorldDraw(WorldDraw draw)
{
var wg = draw.Geometry;
if (wg != null)
{
var arrId = AutocadHelpers.GetArrowObjectId(AutocadHelpers.StandardArrowhead._NONE);
var mText = new MText
{
Contents = MlText,
Location = _secondPoint,
Annotative = AnnotativeStates.True
};
mText.SetDatabaseDefaults();
_mLeader = new MLeader();
var ldNum = _mLeader.AddLeader();
_mLeader.AddLeaderLine(ldNum);
_mLeader.ContentType = ContentType.MTextContent;
_mLeader.ArrowSymbolId = arrId;
_mLeader.MText = mText;
_mLeader.TextAlignmentType = TextAlignmentType.LeftAlignment;
_mLeader.TextAttachmentType = TextAttachmentType.AttachmentBottomOfTopLine;
_mLeader.TextAngleType = TextAngleType.HorizontalAngle;
_mLeader.EnableAnnotationScale = true;
_mLeader.Annotative = AnnotativeStates.True;
_mLeader.AddFirstVertex(ldNum, FirstPoint);
_mLeader.AddLastVertex(ldNum, _secondPoint);
_mLeader.LeaderLineType = LeaderType.StraightLeader;
_mLeader.SetDatabaseDefaults();
draw.Geometry.Draw(_mLeader);
}
return(true);
}