【OBD C++】将创建的批注元素关联

Question

我使用自己的代码创建批注时，尺寸标注以及批注不是关联的。但是使用OBD自带的批注创建的是关联的。如何让这2个关联呢？

代码如下

    EditElementHandle dimElemnote;
	bvector<DPoint3d> m_dimPoints;

	//mdlArc_extract(NULL,NULL,NULL,NULL,NULL,NULL, &centerpoint, msArcelemcp);
	if (SUCCESS != CreateNoteDimension(dimElemnote, 0, modelref))
	{
		return ERROR;
	}

	double              witLength1;
	DVec3d              delta1, corner1, yvec1;
	RotMatrix           rMatrix1;

	DPoint3d* startPoint1 = &centerpoint;
	DPoint3d endPoint1;
	endPoint1.x = centerpoint.x + 2000000;
	endPoint1.y = centerpoint.y + 2000000;

	DPoint3d point1 = centerpoint;
	m_dimPoints.push_back(*startPoint1);
	m_dimPoints.push_back(endPoint1);

	//计算两个点或向量之间的分量差
	mdlVec_subtractPoint(&delta1, &point1, startPoint1);
	//计算两个输入点或向量的分量之和。
	mdlVec_addPoint(&corner1, &m_dimPoints.front(), &delta1);

	//Creates Rotation matrix
	mdlDim_defineRotMatrix(&rMatrix1, dimElemnote.GetElementP(), &m_dimPoints.front(), &corner1, &m_dimPoints.back());
	mdlRMatrix_getColumnVector(&yvec1, &rMatrix1, 1);

	//Gets witness length
	mdlVec_subtractPoint(&delta1, &point1, &m_dimPoints.front());
	witLength1 = mdlVec_dotProduct(&yvec1, &delta1);


	//Inserts points for dimension element
	InsertPoints(dimElemnote, m_dimPoints);

	//IDimensionEdit required to set the dimension element height
	IDimensionEdit* dimEdit1 = dynamic_cast <IDimensionEdit*> (&dimElemnote.GetHandler());
	if (nullptr == dimEdit1)
		return ERROR;
	RotMatrix rMatrix2 = { 0,1,0 };
	dimEdit1->SetRotationMatrix(dimElemnote, rMatrix2);
	dimEdit1->SetHeight(dimElemnote, 2000000);

	//Apply active settings to dimension element
	ElementPropertyUtils::ApplyActiveSettings(dimElemnote);

	//Adds dimension element to the model
	dimElemnote.AddToModel();

	//设置文本内容
	EditElementHandle   eeh;
	TextBlockPtr textBlock = CreateText(L"", endPoint1,text,0);

	if (textBlock.IsValid())
	{
		if (TEXTBLOCK_TO_ELEMENT_RESULT_Success != TextHandlerBase::CreateElement(eeh, NULL,modelref, *textBlock))
		{
			return ERROR;
		}
	}
	eeh.AddToModel();
	EditElementHandle   eehnote;
	EditElementHandle   eehlead;

	//CreateNote(EditElementHandleR noteElem, EditElementHandleCR leaderElement, TextBlockCR text, bool is3d, DgnModelRefR modelRef, DPoint3dCR leaderCellOrigin
	BentleyStatus bstatus;

	StatusInt sint;
	DimensionStylePtr  textStyle = nullptr;
	textStyle = textStyle->GetActive();
	
	//NoteCellHeaderHandler::AddToModel(eehnote, dimElemnote, modelref->GetDgnModelP);
	bstatus = NoteCellHeaderHandler::CreateNote(eehnote, eehlead, *textBlock, *textStyle,false, *modelref, m_dimPoints);

	//bstatus = NoteCellHeaderHandler::CreateNote(eehnote, dimElemnote, *textBlock, false, *modelref, endPoint1);
	eehlead.AddToModel();
	//eehnote.AppendElementLinkage();
	sint = eehnote.AddToModel();

HongQiang Guo · Accepted Answer

试试下面的代码： 
 void CreateNoteDime()
{
	double g_1mu = ISessionMgr::GetActiveDgnModelP()->GetModelInfoCP()->GetUorPerMeter();
	DgnFilePtr pActiveDgnFile = ISessionMgr::GetActiveDgnFile();

	DimensionStylePtr pDimStyle = DimensionStyle::GetSettings(*pActiveDgnFile);

	DgnTextStylePtr textStyle = DgnTextStyle::GetSettings(*pActiveDgnFile);

	EditElementHandle noteElem, leaderElement;
	TextBlockPropertiesPtr txtBlockProp= TextBlockProperties::Create(*textStyle,*(ACTIVEMODEL->AsDgnModelP()));
	ParagraphPropertiesPtr paragraphProperties= ParagraphProperties::Create(*textStyle, *(ACTIVEMODEL->AsDgnModelP()));
	RunPropertiesPtr runProp= RunProperties::Create(*textStyle, *(ACTIVEMODEL->AsDgnModelP()));
	TextBlockPtr text= TextBlock::Create(*txtBlockProp,*paragraphProperties,*runProp, *(ACTIVEMODEL->AsDgnModelP()));
	text->AppendText(L"AAAA");
	DPoint3d insertPt = { 0 };
	NoteCellHeaderHandler::StdDPointVector noteLeaderPoints;
	noteLeaderPoints.push_back(insertPt);
	insertPt.x = 10000;
	noteLeaderPoints.push_back(insertPt);
	NoteCellHeaderHandler::CreateNote(noteElem, leaderElement, *text,*pDimStyle, true, *ACTIVEMODEL, noteLeaderPoints);
	IDimensionEdit* iDimEdit = dynamic_cast<IDimensionEdit*>(&leaderElement.GetHandler());

	EditElementHandle lineEeh;
	DPoint3d ptArr[5] = { {0,2 * g_1mu,0},{10 * g_1mu,0,0},{15 * g_1mu,0,0} ,{20 * g_1mu,0,0} ,{25 * g_1mu,5 * g_1mu,0} };
	LineStringHandler::CreateLineStringElement(lineEeh, NULL, ptArr, 5, true, *ACTIVEMODEL);
	lineEeh.AddToModel();
	AssocPoint assocPt1;
	AssociativePoint::InitKeypoint(assocPt1, 1, 5, 0, 1);
	AssociativePoint::SetRoot(assocPt1, lineEeh.GetElementId(), 0);

	if (SUCCESS != iDimEdit->SetPoint(leaderElement, NULL, &assocPt1, 0))
	{
 return;
	}
	iDimEdit->SetRotationMatrix(leaderElement, RotMatrix::FromIdentity());
	NoteCellHeaderHandler::AddToModel(noteElem, leaderElement,*(ACTIVEMODEL->AsDgnModelP()));
}

Yongan.Fu · Answer

你在MS中手工标注一个Note然后用Property工具去分析一下就能明白，Note元素是由两个元素（一个Dimension，一个Note）组成的。 NoteCellHeaderHandler::CreateNote返回的.第二个参数就是其中的Dimension元素。Leader--引线的意思。

【OBD C++】将创建的批注元素关联

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