envi-code/SourceCode/Code2026/tg_shs/shs_pipewire/DbPipeFitting.cpp

#include "stdafx.h"
#include <DbPolyMesh.h>
#include "DbPipeFitting.h"
#include "DbPipe.h"
#include "DbPsConfig.h"
#include "DbFlangeFitting.h"
#include "PipeTools.h"
#include "DbCanalFitting.h"
#include "DbPipeCanal.h"
#include "DbGouge.h"

ACRX_DXF_DEFINE_MEMBERS(ATSPipTeFitting, ATSPipeNode, AcDb::kDHL_CURRENT,
						AcDb::kMReleaseCurrent, 1, ATS_PIPEFITTING,
						"ATS_PIPEFITTING图形无法解析, 请下载上华软件|网址: www.shanghuasoft.com");
IMPLEMENT_TENTBASE(TDbPipeFitting);

const Adesk::UInt8 TDbPipeFitting::g_nVersion = 1;


TDbPipeFitting::TDbPipeFitting()
{
	m_visibility=TPipeSys::kInvisible;

}

void TDbPipeFitting::CopyPropertiesFrom(AcDbEntity *pSrc,unsigned gMatchFlag)
{
	assertWriteEnabled();
	TDbPipeNode::CopyPropertiesFrom(pSrc, gMatchFlag);
	TDbPipeFitting *pFitting = TDbPipeFitting::cast(pSrc);
	if(pFitting) {
	}	
}

Acad::ErrorStatus TDbPipeFitting::subGetClassID(CLSID* pClsid) const
{
	return Acad::eOk;
}

Acad::ErrorStatus 
TDbPipeFitting::subGetOsnapPoints(AcDb::OsnapMode	   osnapMode,
							 INT_PTR               gsSelectionMark,
							 const AcGePoint3d&    ptPick,
							 const AcGePoint3d&    lastPoint,
							 const AcGeMatrix3d&   viewXform,
							 AcGePoint3dArray&     snapPoints,
							 AcDbIntArray&         geomIds) const
{
	Acad::ErrorStatus es=Acad::eOk;

	if(	osnapMode == AcDb::kOsModeIns ||
		/*osnapMode == AcDb::kOsModeCen ||*/
		osnapMode == AcDb::kOsModeNode) {
			snapPoints.append(m_ptLocation);
	}
	es=TDbPipeNode::subGetOsnapPoints(osnapMode,gsSelectionMark, 
			ptPick,lastPoint,viewXform,snapPoints,geomIds);

	return es;
}

// 从DWG读入数据:
Acad::ErrorStatus TDbPipeFitting::dwgInFields(AcDbDwgFiler* pFiler)
{
    assertWriteEnabled();

    Acad::ErrorStatus es = TDbPipeNode::dwgInFields(pFiler);
    if(es != Acad::eOk) return es;
    Adesk::UInt8  nVer;
    pFiler->readItem(&nVer);
    if(nVer>g_nVersion) {// Version is too new
       return Acad::eMakeMeProxy;
    }

	pFiler->readItem((AcGePoint3d *)&m_ptLocation);

    return pFiler->filerStatus();
}

Acad::ErrorStatus TDbPipeFitting::dwgOutFields(AcDbDwgFiler* pFiler) const
{
    assertReadEnabled();
    Acad::ErrorStatus es = TDbPipeNode::dwgOutFields(pFiler);
    if(es != Acad::eOk) return es;

    pFiler->writeItem(g_nVersion);
    pFiler->writeItem((const AcGePoint3d &)m_ptLocation);

    return pFiler->filerStatus();
}

Acad::ErrorStatus TDbPipeFitting::dxfInFields(AcDbDxfFiler* pFiler)
{
    assertWriteEnabled();
	Acad::ErrorStatus es=Acad::eOk;
    es=TDbPipeNode::dxfInFields(pFiler);
    if(es!=Acad::eOk) return es;

    if (!pFiler->atSubclassData(_T("TDbPipeFitting"))) {
        return Acad::eBadDxfSequence;
    }

    return pFiler->filerStatus();
}

Acad::ErrorStatus TDbPipeFitting::dxfOutFields(AcDbDxfFiler* pFiler) const
{
    Acad::ErrorStatus es=Acad::eOk;
    es=TDbPipeNode::dxfOutFields(pFiler);
    assert(es==Acad::eOk);
    es=pFiler->writeItem(AcDb::kDxfSubclass,_T("TDbPipeFitting"));
    assert(es==Acad::eOk);

    return es;
}

Acad::ErrorStatus TDbPipeFitting::subTransformBy(const AcGeMatrix3d& xform)
{
	assertWriteEnabled();
	TDbPipeNode::subTransformBy(xform);
	m_ptLocation.TransformBy(xform);
	return Acad::eOk;
}

Acad::ErrorStatus 
TDbPipeFitting::GetGripText(int idx, CString &cs) const
{
	Acad::ErrorStatus es = Acad::eOk;
	if(IsVisible()) {
		if(idx==0) {
			cs=_T("移动节点");
		}
	}
	return es;
}

Acad::ErrorStatus 
TDbPipeFitting::subGetGripPoints(AcGePoint3dArray& gripPoints,
                              AcDbIntArray&  osnapModes,
                              AcDbIntArray&  geomIds) const
{
	Acad::ErrorStatus es=Acad::eOk;
	if(IsVisible()) {
		assertReadEnabled();
		GetGSPoints(gripPoints);
	}
	return es;
}

Acad::ErrorStatus
TDbPipeFitting::subGetStretchPoints(AcGePoint3dArray & stretchPoints) const
{
	Acad::ErrorStatus es=Acad::eOk;
	if(IsVisible()) {
		assertReadEnabled();
		GetGSPoints(stretchPoints);
	}
	return es;
}

Acad::ErrorStatus TDbPipeFitting::
GetGSPoints(AcGePoint3dArray &stretchPoints) const
{
	stretchPoints.append(m_ptLocation);
	return Acad::eOk;
}

Acad::ErrorStatus TDbPipeFitting::
MoveGSPointsAt(const AcDbIntArray& indices,const AcGeVector3d& offset)
{
	AcGeMatrix3d mat;
	mat.setToTranslation(offset);
	return subTransformBy(offset);
}

Acad::ErrorStatus 
TDbPipeFitting::subMoveGripPointsAt(const AcDbIntArray& indices,
                 const AcGeVector3d& offset)
{
	Acad::ErrorStatus es=Acad::eOk;
	if(IsVisible()) {
		assertWriteEnabled();
		es=MoveGSPointsAt(indices,offset);
	}
	return es;
}

Acad::ErrorStatus 
TDbPipeFitting::subMoveStretchPointsAt(const AcDbIntArray& indices,
                 const AcGeVector3d& offset)
{
	Acad::ErrorStatus es=Acad::eOk;
	if(IsVisible()) {
		assertWriteEnabled();
		es=MoveGSPointsAt(indices,offset);
	}
	return es;
}

XPoint TDbPipeFitting::GetLocation() const
{
	return m_ptLocation;
}

Acad::ErrorStatus TDbPipeFitting::ExplodeOrDraw2d(XExplodeDraw &dc) const
{
	// cet 2016.10.17 add 图层关闭时，实体不显示，不进行绘制（打印时，也不会绘制）
	AcDbLayerTableRecordPointer player(this->layerId(), AcDb::kForRead);
	if (player.openStatus() == Acad::eOk && player->isOff())
	{
		return Acad::eOk;
	}
	// cet 2016.8.17 add 方沟连接件
	if (IsLinkedPipeCanal())
	{
		TDbCanalFitting fitting(this);
		return fitting.ExplodeOrDraw2d(dc);
	}
	Acad::ErrorStatus es=Acad::eOk;
	if(m_lstInterface.Length()>0) { // 判断系统的显示属性
		TPSConfig config;
		if(!!config) {
			BOOL bShow=FALSE;
			for(int i=0; i<m_lstInterface.Length(); i++) {
				const TPipeInterface &iFace=m_lstInterface[i];
				bShow = bShow || config.m_pConfig->IsSystemShow(iFace.m_sysType);
			}
			if(!bShow) return es;
		}
	}

	if(m_visibility == TPipeSys::kVisible) {
		double nDist=1.0*GetPScale();
		for(int i=0; i<m_lstInterface.Length(); i++) {
			const TPipeInterface &iFace=m_lstInterface[i];
			XVector3D vt=iFace.m_vtLocation;
			vt.Normalize();
			vt *= nDist;
			XPoint pt = m_ptLocation + vt;
			if(pt.Distance2d(m_ptLocation)>_distSnap) { //接口不是垂直方向
				pt.z=0;
				double nAngOut=ads_angle(XPoint(), vt);
				XPoint pt1, pt2;
				ads_polar(pt, nAngOut+PI/2, nDist/2, pt1);
				ads_polar(pt, nAngOut-PI/2, nDist/2, pt2);
				dc << XLine(pt1, pt2);
			}
		}
	}
	else if(_tcsicmp(dc.Desc(),XAcGiViewDraw::Descriptor())==0 && !dc.IsPlotGeneration()) {
		AcGePoint3d pt(m_ptLocation.x,m_ptLocation.y,0);
		dc.DrawEntity(AcDbPoint(pt));
	}

	return es;
}

// 绘制弯头
Acad::ErrorStatus DrawPolyMesh(XPoint ptSt, XPoint ptEn, double nRadius, XExplodeDraw &dc)
{
	AcGePoint3d ptS = ptSt;
	AcGePoint3d ptE = ptEn;
	
	AcGeVector3d vtDirect = ptE - ptS;
	AcGeVector3d vtNormal = vtDirect.perpVector();
	vtDirect.normalize();
	
	double dMinAngle = PI / 15.0;
	int nPartNum = int(PI * 2 / dMinAngle) + 1;
	dMinAngle = PI * 2.0 / nPartNum;
	
	double dDiaMet = nRadius*2;
	
	AcGePoint3dArray ptArr,ptArrT,ptArrD;
	AcGeVector3d vtNow = vtNormal * -1;	// 每组顶点法向
	int i(0);
	for (i = 0; i < nPartNum * 2; i += 2)
	{
		ptArr.append(ptS + dDiaMet * 0.5 * vtNow);
		ptArr.append(ptE + dDiaMet * 0.5 * vtNow);

		ptArrT.append(ptS + dDiaMet * 0.5 * vtNow);
		ptArrT.append(ptS);

		ptArrD.append(ptE + dDiaMet * 0.5 * vtNow);
		ptArrD.append(ptE);

		vtNow.rotateBy(dMinAngle, vtDirect);
	}		
	
	// 单独设置末点，防止误差
	ptArr.append(ptArr.at(0));
	ptArr.append(ptArr.at(1));

	ptArrT.append(ptArrT.at(0));
	ptArrT.append(ptArrT.at(1));

	ptArrD.append(ptArrD.at(0));
	ptArrD.append(ptArrD.at(1));	
	
	// 圆柱体
	dc.DrawMesh(nPartNum + 1, 2, ptArr.asArrayPtr());
	// 上面
	dc.DrawMesh(nPartNum + 1, 2, ptArrT.asArrayPtr());
	// 下面
	dc.DrawMesh(nPartNum + 1, 2, ptArrD.asArrayPtr());

	return Acad::eOk;
	

//    XPoly2D *polyShape1 = new XPoly2D(1);
//    XCircle cir1(ptS, nRadius);
//    XCurveSegment seg1;
//    seg1 = cir1;
//    seg1.AsPoly2D(*polyShape1);
//    
//    XPoly2D *polyShape2 = new XPoly2D(1);
//    XCircle cir2(ptE, nRadius);
//    XCurveSegment seg2;
//    seg2 = cir2;
//    seg2.AsPoly2D(*polyShape2);
//
//    
//    XPoly2D polyPath;//路径
//    polyPath.AppendNode(ptS);
//    polyPath.AppendNode(ptE);
//    
//    DList<XPoly2D>	lstShapePloy;
//    DList<XPoint>	lstShapeBase;
//    lstShapePloy.Append(polyShape1);
//    lstShapePloy.Append(polyShape2);
//    lstShapeBase.Append(new XPoint(ptS));
//    lstShapeBase.Append(new XPoint(ptE));
//    TDbPolyMesh cvMesh;
//    cvMesh.SetBasePoly(polyPath);
//    cvMesh.SetAllShapePolys(lstShapePloy);
//    cvMesh.SetAllShapeBases(lstShapeBase);  //指定基点
//    if(dc.IsFullExplode())
//        cvMesh.ExplodeOrDraw3d(dc);
//    else
//        dc.DrawEntity(cvMesh);
//    return Acad::eOk;
}
 

// 绘制三维堵头，三通，四通
Acad::ErrorStatus TDbPipeFitting::Draw3dOther(XExplodeDraw &dc) const
{
    XPoint pt1, pt2;
    double nDn(0);
    int num = GetInterfaceNum();
    for(int i=0;i<num;i++){
        TPipeInterface face;
        GetInterface(i, face);
        AcDbObjectId nextPipeId = face.m_idPipe; 
		AcDbCurve *pCurve1 = NULL;
        OPENOBJ_BEGIN(nextPipeId, AcDb::kForRead, TDbPipe, pPipe);
        if(pPipe){
            if(pPipe->GetModelType() == TPipeSys::kSystem)	
                return Acad::eOk;
            pCurve1 = pPipe->AsAcDbCurve();
//			cet 2018.2.2 modify 通过文件查询外径，对实体绘制效率影响较大
//          nDn = pPipe->GetDnDiameter();
//          nDn = GetPipeOutDByDn(pPipe->GetMaterial(), nDn);
			nDn = pPipe->OuterDn();
        }
        OPENOBJ_END();
		if(DocGetMeterUnitDraw())
			nDn = nDn / 1000.0;
		
        double nDist = nDn*1.2;
		double nFactor(1.0);
		BOOL bOk(FALSE);

		// mcl,changed 2010-02-03.太短时，会返回零点，所以判断下
		// pt1 = GetPointAtDist(pCurve1, nDist*0.8);
		// pt2 = GetPointAtDist(pCurve1, nDist);

		bOk = GetPointAtDist(pCurve1, nDist*0.8, pt1);
		if (bOk)
			bOk = GetPointAtDist(pCurve1, nDist, pt2);

		if (!bOk)
			return Acad::eNotImplementedYet;
		
		if(pCurve1 != NULL)
			delete pCurve1;
	
		if(num == 1)
			DrawPolyMesh(m_ptLocation, pt2, nDn/2*nFactor, dc);//堵头
		else
		{
			if(!!pt1)
				DrawPolyMesh(m_ptLocation, pt1, nDn/2*nFactor, dc);
			if(!!pt2)
				DrawPolyMesh(pt1, pt2, nDn/2*nFactor*1.1, dc);
		}
    }        
    return Acad::eOk;
}

//sr add 2008-4-14
//已知1个曲线, 给定一个距离dDist, 返回距弯头m_ptLocation点dDist距离的点

// mcl changed 2010-02-03
//XPoint TDbPipeFitting::GetPointAtDist(AcDbCurve *pCurve, double dDist) const
BOOL TDbPipeFitting::GetPointAtDist( AcDbCurve *pCurve, double dDist, XPoint &ptGet ) const
{
	if(pCurve == NULL)
		return FALSE;

	XPoint ptStart, ptEnd;
	pCurve->getStartPoint(ptStart);
	pCurve->getEndPoint(ptEnd);
	double dDist2Elbow(0.0), dDistCalc(0.0);
	pCurve->getDistAtPoint(m_ptLocation, dDist2Elbow);
	if(ptStart == m_ptLocation)
		dDistCalc = dDist2Elbow + dDist;
	else
		dDistCalc = dDist2Elbow - dDist;

	Acad::ErrorStatus eState = pCurve->getPointAtDist(dDistCalc, ptGet);
	if (eState == Acad::eOk)
		return TRUE;

	return 	FALSE;
}

// 绘制三维弯头
Acad::ErrorStatus TDbPipeFitting::Draw3dElbow(XExplodeDraw &dc) const
{
    XPoint pt1, pt2, pt3, pt4, pt5, pt6, pt7, pt8;
	//1 首先得到弯头连接2管线的管径
    double nDn1(0), nDn2(0);
    BOOL bIsVer1(FALSE), bIsVer2(FALSE);
    TPipeSys::SysType sys1 = TPipeSys::kUnknownSys;
	TPipeSys::SysType sys2 = TPipeSys::kUnknownSys;
	AcDbCurve *pCurve1 = NULL;
	AcDbCurve *pCurve2 = NULL;
	double dPipeLen1 = 0.0, dPipeLen2 = 0.0; // cet 2011.5.27 add
	AcGePoint3d pts,pte,pts1,pte1;
    for(int i=0;i<2;i++){
        TPipeInterface face;
        GetInterface(i, face);

        AcDbObjectId nextPipeId = face.m_idPipe; 
        OPENOBJ_BEGIN(nextPipeId, AcDb::kForRead, TDbPipe, pPipe);
        if(pPipe){
            if(pPipe->GetModelType() == TPipeSys::kSystem)	
                return Acad::eOk;
            if(i == 0){
				pCurve1 = pPipe->AsAcDbCurve();
                nDn1 = pPipe->GetDnDiameter();
                sys1 = face.m_sysType;
                bIsVer1 = pPipe->IsVertical();
//				cet 2018.2.2 modify 通过文件查询外径，对实体绘制效率影响较大
//              nDn1 = GetPipeOutDByDn(pPipe->GetMaterial(), nDn1);
				nDn1 = pPipe->OuterDn();
				pPipe->getStartPoint(pts);
				pPipe->getEndPoint(pte);
				dPipeLen1 = pPipe->GetLength(); // cet 2011.5.27 add
            }
            else{
				pCurve2 = pPipe->AsAcDbCurve();
                nDn2 = pPipe->GetDnDiameter();
                sys2 = face.m_sysType;
                bIsVer2 = pPipe->IsVertical();
//              cet 2018.2.2 modify 通过文件查询外径，对实体绘制效率影响较大
//              nDn2 = GetPipeOutDByDn(pPipe->GetMaterial(), nDn2);
				nDn2 = pPipe->OuterDn();
				pPipe->getStartPoint(pts1);
				pPipe->getEndPoint(pte1);
				dPipeLen2 = pPipe->GetLength(); // cet 2011.5.27 add
            }
        }
        OPENOBJ_END();
    }
	double dArea(1);
	if(DocGetMeterUnitDraw())
	{
		nDn1 = nDn1 / 1000.0;
		nDn2 = nDn2 / 1000.0;
		dArea = 0.0001;
	}
	//2 得到弯头几个参数点. pt1, pt2, pt3, pt4 是中间变截面体的4个路径点, pt5&pt7, pt6&pt8是引申出2段的圆柱的起终点
    nDn1 = nDn1 / 2;//转半径
    nDn2 = nDn2 / 2;
	double nDist = nDn1;
	if (nDn2 > nDn1) // cet 2011.5.27 add
	{
		nDist = nDn2;
	}
	double nFactor(1);

	GetPointAtDist(pCurve1, nDist, pt1);
	GetPointAtDist(pCurve1, nDist*2, pt3);
	GetPointAtDist(pCurve1, nDist*3, pt5);
	GetPointAtDist(pCurve2, nDist, pt2);
	GetPointAtDist(pCurve2, nDist*2, pt4);
	GetPointAtDist(pCurve2, nDist*3, pt6);
	AcGePoint3d ptStart,ptEnd;
	ptStart = pt3;
	ptEnd =  pt4;

    
	delete pCurve1;
	delete pCurve2;
    if(sys1 != sys2 && bIsVer1 && bIsVer2)
        return Acad::eOk;
	
    if(!pt1 || !pt2  || !pt3 || !pt4 || !pt5 || !pt6){//可能太短了，无法绘制弯头，就简化一下
		if(!!pt2 && !!pt4 && !!pt6)
			DrawPolyMesh(pt6, m_ptLocation, nDn2*nFactor, dc);
		if(!!pt1 && !!pt3 && !!pt5)
			DrawPolyMesh(pt5, m_ptLocation, nDn1*nFactor, dc);
        return Acad::eOk;
	}
	
    
	AcGeVector3d vtDir1(pt1 - m_ptLocation); 
	AcGeVector3d vtDir2(pt2 - m_ptLocation); 

	// cet 2011.5.27 add 两管平行时单独处理
	if (vtDir1.isParallelTo(vtDir2))
	{
		return Draw3dElbow2(dc);
	}	


    AcGeVector3d v3 = vtDir1.crossProduct(vtDir2);
    AcGeMatrix3d mat;
    mat.setToWorldToPlane(v3);
    v3.normalize();
    double nAngTotal = vtDir1.angleTo(vtDir2);
   // if(nAngTotal > (PI - 0.001)){ //保证都是优弧
        nAngTotal -= PI;
        nAngTotal = nAngTotal * -1;
  //  }
    XPoly2D polyPath;//路径

    pt7 = pt3;
    pt8 = pt4;
    if(v3 != AcGeVector3d(0, 0, 0)){
        pt1.TransformBy(mat);
        pt2.TransformBy(mat);
        pt3.TransformBy(mat);
        pt4.TransformBy(mat);
    }
    else
        v3 = AcGeVector3d(0, 0, 1);

    polyPath.AppendNode(pt3);
    polyPath.AppendNode(pt1, -nAngTotal);
    polyPath.AppendNode(pt2);
    polyPath.AppendNode(pt4);
 
    if(polyPath.IsSelfIntersect()||polyPath.Area()<dArea)
        return Acad::eOk;

    XPoly2D *polyShape1=new XPoly2D(1);
    XCircle cir2(pt3, nDn1*nFactor);
    XCurveSegment seg2;
    seg2 = cir2;
    seg2.AsPoly2D(*polyShape1);
    if(polyShape1->IsSelfIntersect()||polyShape1->Area()<dArea)
        return Acad::eOk;
 
    XPoly2D *polyShape2=new XPoly2D(1);
    XCircle cir3(pt4, nDn2*nFactor);
    XCurveSegment seg3; 
    seg3 = cir3;
    seg3.AsPoly2D(*polyShape2);
    if(polyShape2->IsSelfIntersect()||polyShape2->Area()<dArea)
        return Acad::eOk;
    
    DList<XPoly2D>	lstShapePloy;
    DList<XPoint>	lstShapeBase;
    lstShapePloy.Append(polyShape1);
    lstShapePloy.Append(polyShape2);
    lstShapeBase.Append(new XPoint(pt3));
    lstShapeBase.Append(new XPoint(pt4));


	//等径用新算法
	if (fabs(nDn1 - nDn2) < 1.e-3 )//&& vtDir1.isPerpendicularTo(vtDir2)
	{
		//弯头的夹角
		double dAngle = PI * 0.5;
		double dDiameter = nDn1 * 2;
		AcGePoint3d ptCorOnArc,ptCorner,ptGeCen;

		vtDir2.normalize();
		vtDir1.normalize();
		
		ptCorOnArc = m_ptLocation;
		AcGeVector3d vtDirv1,vtDirv2,vtNormal,vtCor;
		vtDirv1 = vtDir1;
		vtDirv2 = vtDir2;
		vtDirv1.rotateBy(PI*0.5, v3);
		vtDirv2.rotateBy(PI*0.5, v3);
		vtNormal = -v3;

		AcGeLine3d line1,line2;
		line1.set(ptStart, vtDirv1);
		line2.set(ptEnd, vtDirv2);
		//判断是否相交---找圆心
		if(!line1.intersectWith(line2, ptGeCen))
			return Acad::eOk;

		double dBigDia = ptStart.distanceTo(ptGeCen);
		vtCor = ptGeCen - ptCorOnArc;
		vtCor.normalize();
		//大圆弧上一点
		ptCorOnArc = ptGeCen - vtCor * dBigDia; 

		AcGeCircArc3d circArc;
		circArc.set(ptStart,ptCorOnArc,ptEnd);
		ptGeCen = circArc.center();

		AcDbVoidPtrArray arCurPtr;
		AcDbCircle cir;
		AcGePoint3dArray pts;
		pts.append(ptStart);
		pts.append(ptEnd);

		cir.setCenter(ptGeCen);
		cir.setRadius(circArc.radius());
		cir.setNormal(circArc.normal());
		cir.getSplitCurves(pts,arCurPtr);
		//根据ptStart，ptEnd将cir分成两段圆弧
		int i = 0,j = 0;
		for (i = 0;i < arCurPtr.length();i++)
		{
			double dPar;
			AcDbArc * pArc = (AcDbArc*)arCurPtr.at(i);
			//判断ptCorner在哪一段圆弧上，并重新得到圆弧的ptStart，ptEnd
			if (pArc->getParamAtPoint(ptCorOnArc,dPar) == Acad::eOk)
			{
				pArc->getStartPoint(ptStart);
				pArc->getEndPoint(ptEnd);
				vtNormal = pArc->normal();
			}
			delete pArc;
		}
		AcGeVector3d vtStr = vtDir1;
		AcGeVector3d vtEnd = vtDir2;

		dAngle = fabs(vtStr.angleTo(vtEnd));
		dAngle = PI - dAngle;

		double dDifAng1 = 0.0,dMinDiffAng = PI / 15;
		//按照90°弯头分成nSect1个圆截面，每个圆截面分成nSect个点
		int nSect = int(PI * 2 / dMinDiffAng);
		int nSect1 = int(dAngle / dMinDiffAng);

		vtStr.normalize();
		vtEnd.normalize();
		vtNormal.normalize();

		//得到ptStart处的圆截面上nSect个点，使用了vtEnd做为法向量
		AcGePoint3dArray arptCircle;
		AcGePoint3dArray arptSides;
		AcGePoint3d pt;
		pt = ptStart + vtNormal * dDiameter* 0.5;
		AcGePoint3d ptTemp = pt;
		for (i = 0; i < nSect + 1 ; i++)
		{
			arptCircle.append(pt);
			pt = ptTemp.rotateBy(dMinDiffAng, vtStr, ptStart);
		}

		//将ptStart处的圆上nSect个点按照dMinDiffAng旋转出nSect1个圆截面
		for (i = 0; i <= nSect1; i++)
		{
			dDifAng1 = dMinDiffAng * i;
			for (j = 0;j < nSect + 1 ;j++)
			{
				ptTemp = pt = arptCircle[j];
				pt = ptTemp.rotateBy(dDifAng1, vtNormal, ptGeCen);
				arptSides.append(pt);
			}
		}
		//最后一个圆截面是ptStartt处的圆上nSect个点按照PI/2 90°或者dAngle旋转出来
		for (j = 0;j < nSect + 1 ;j++)
		{
			pt = arptCircle[j].rotateBy(dAngle, vtNormal, ptGeCen);
			arptSides.append(pt);
		}

		dc.DrawMesh( nSect1 + 2 , nSect + 1, arptSides.asArrayPtr());
	}
	else
	{
		TDbPolyMesh cvMesh;
		cvMesh.setPropertiesFrom(this);
		cvMesh.SetNormal(v3);//法向
		cvMesh.SetBasePoly(polyPath);
		cvMesh.SetAllShapePolys(lstShapePloy);
		cvMesh.SetAllShapeBases(lstShapeBase);  //指定基点
		if(dc.IsFullExplode())
			cvMesh.ExplodeOrDraw3d(dc);
		else
			dc.DrawEntity(cvMesh);
	} 

//  cet 2011.5.27 modify
//  DrawPolyMesh(pt5, pt7, nDn1*nFactor*1.1, dc);
//  DrawPolyMesh(pt6, pt8, nDn2*nFactor*1.1, dc);

	if (dPipeLen1 > nDist * 4)
	{
		DrawPolyMesh(pt5, pt7, nDn1*nFactor*1.1, dc);
	}
	
    if (dPipeLen2 > nDist * 4)
    {
		DrawPolyMesh(pt6, pt8, nDn2*nFactor*1.1, dc);
	}


	return Acad::eOk;
}

Acad::ErrorStatus TDbPipeFitting::Draw3dElbow2(XExplodeDraw &dc) const
{
	XPoint pt1, pt2, pt3, pt4, pt5, pt6, pt7, pt8;
	//1 首先得到弯头连接2管线的管径
    double nDn1(0), nDn2(0);
    BOOL bIsVer1(FALSE), bIsVer2(FALSE);
    TPipeSys::SysType sys1 = TPipeSys::kUnknownSys;
	TPipeSys::SysType sys2 = TPipeSys::kUnknownSys;
	AcDbCurve *pCurve1 = NULL;
	AcDbCurve *pCurve2 = NULL;
	AcGePoint3d pts,pte,pts1,pte1;
    for(int i=0;i<2;i++){
        TPipeInterface face;
        GetInterface(i, face);

        AcDbObjectId nextPipeId = face.m_idPipe; 
        OPENOBJ_BEGIN(nextPipeId, AcDb::kForRead, TDbPipe, pPipe);
        if(pPipe){
            if(pPipe->GetModelType() == TPipeSys::kSystem)	
                return Acad::eOk;
            if(i == 0){
				pCurve1 = pPipe->AsAcDbCurve();
                nDn1 = pPipe->GetDnDiameter();
                sys1 = face.m_sysType;
                bIsVer1 = pPipe->IsVertical();
//              cet 2018.2.2 modify 通过文件查询外径，对实体绘制效率影响较大 
//              nDn1 = GetPipeOutDByDn(pPipe->GetMaterial(), nDn1);
				nDn1 = pPipe->OuterDn();
				pPipe->getStartPoint(pts);
				pPipe->getEndPoint(pte);
            }
            else{
				pCurve2 = pPipe->AsAcDbCurve();
                nDn2 = pPipe->GetDnDiameter();
                sys2 = face.m_sysType;
                bIsVer2 = pPipe->IsVertical();
//              cet 2018.2.2 modify 通过文件查询外径，对实体绘制效率影响较大 
//              nDn2 = GetPipeOutDByDn(pPipe->GetMaterial(), nDn2);
				nDn2 = pPipe->OuterDn();
				pPipe->getStartPoint(pts1);
				pPipe->getEndPoint(pte1);
            }
        }
        OPENOBJ_END();
    }
	double dArea(1);
	if(DocGetMeterUnitDraw())
	{
		nDn1 = nDn1 / 1000.0;
		nDn2 = nDn2 / 1000.0;
		dArea = 0.0001;
	}
	//2 得到弯头几个参数点. pt1, pt2, pt3, pt4 是中间变截面体的4个路径点, pt5&pt7, pt6&pt8是引申出2段的圆柱的起终点
    nDn1 = nDn1 / 2;//转半径
    nDn2 = nDn2 / 2;
	double nDist = nDn1;
	if(nDn2 > nDn1)
	{
		nDist = nDn2;
	}
	double nFactor(1);

	GetPointAtDist(pCurve1, nDist, pt1);
	GetPointAtDist(pCurve1, nDist*2, pt3);
	GetPointAtDist(pCurve1, nDist*3, pt5);
	GetPointAtDist(pCurve2, nDist, pt2);
	GetPointAtDist(pCurve2, nDist*2, pt4);
	GetPointAtDist(pCurve2, nDist*3, pt6);
	AcGePoint3d ptStart,ptEnd;
	ptStart = pt3;
	ptEnd =  pt4;
 
	delete pCurve1;
	delete pCurve2;
    if(sys1 != sys2 && bIsVer1 && bIsVer2)
        return Acad::eOk;
	
    if(!pt1 || !pt2  || !pt3 || !pt4 || !pt5 || !pt6){//可能太短了，无法绘制弯头，就简化一下
		if(!!pt2 && !!pt4 && !!pt6)
			DrawPolyMesh(pt6, m_ptLocation, nDn2*nFactor, dc);
		if(!!pt1 && !!pt3 && !!pt5)
			DrawPolyMesh(pt5, m_ptLocation, nDn1*nFactor, dc);
        return Acad::eOk;
	}
	
    
	AcGeVector3d vtDir1(pt1 - m_ptLocation); 
	AcGeVector3d vtDir2(pt2 - m_ptLocation); 

    AcGeVector3d v3 = vtDir1.crossProduct(vtDir2);
    AcGeMatrix3d mat;
    mat.setToWorldToPlane(v3);
    v3.normalize();
    double nAngTotal = vtDir1.angleTo(vtDir2);
    nAngTotal -= PI;
    nAngTotal = nAngTotal * -1;
    XPoly2D polyPath;//路径

    pt7 = pt3;
    pt8 = pt4;
    if(v3 != AcGeVector3d(0, 0, 0)){
        pt1.TransformBy(mat);
        pt2.TransformBy(mat);
        pt3.TransformBy(mat);
        pt4.TransformBy(mat);
    }
    else
        v3 = AcGeVector3d(0, 0, 1);

    polyPath.AppendNode(pt3);
    polyPath.AppendNode(pt1, -nAngTotal);
    polyPath.AppendNode(pt2);
    polyPath.AppendNode(pt4);

    XPoly2D *polyShape1=new XPoly2D(1);
    XCircle cir2(pt3, nDn1*nFactor);
    XCurveSegment seg2;
    seg2 = cir2;
    seg2.AsPoly2D(*polyShape1);
    if(polyShape1->IsSelfIntersect()||polyShape1->Area()<dArea)
        return Acad::eOk;
 
    XPoly2D *polyShape2=new XPoly2D(1);
    XCircle cir3(pt4, nDn2*nFactor);
    XCurveSegment seg3; 
    seg3 = cir3;
    seg3.AsPoly2D(*polyShape2);
    if(polyShape2->IsSelfIntersect()||polyShape2->Area()<dArea)
        return Acad::eOk;
    
	// cet 2011.7.22 modify 立管情况单独处理
	if (bIsVer1 && bIsVer2)
	{
		dc.DrawMesh(*polyShape2, *polyShape1);
		delete polyShape1;
		delete polyShape2;
	}
	else
	{
		DList<XPoly2D>	lstShapePloy;
		DList<XPoint>	lstShapeBase;
		lstShapePloy.Append(polyShape1);
		lstShapePloy.Append(polyShape2);
		lstShapeBase.Append(new XPoint(pt3));
		lstShapeBase.Append(new XPoint(pt4));

		TDbPolyMesh cvMesh;
		cvMesh.setPropertiesFrom(this);
		cvMesh.SetNormal(v3);//法向
		cvMesh.SetBasePoly(polyPath);
		cvMesh.SetAllShapePolys(lstShapePloy);
		cvMesh.SetAllShapeBases(lstShapeBase);  //指定基点
		if(dc.IsFullExplode())
			cvMesh.ExplodeOrDraw3d(dc);
		else
			dc.DrawEntity(cvMesh);
	}

	DrawPolyMesh(pt5, pt7, nDn1*nFactor*1.1, dc);
	DrawPolyMesh(pt6, pt8, nDn2*nFactor*1.1, dc);

	return Acad::eOk;
}

Acad::ErrorStatus TDbPipeFitting::ExplodeOrDraw3d(XExplodeDraw &dc) const
{
	// cet 2016.8.17 add 方沟连接件
	if (IsLinkedPipeCanal())
	{
		TDbCanalFitting fitting(this);
		return fitting.ExplodeOrDraw3d(dc);
	}
//	if(!!objectId()) {
		AcGePoint3d pt(m_ptLocation.x,m_ptLocation.y,m_ptLocation.z);
		dc.DrawEntity(AcDbPoint(pt));
        //SR ADD 2005-6-10
        int num = GetInterfaceNum();
        if(num != 2)
           return Draw3dOther(dc);
        else
            return Draw3dElbow(dc);
   // }
	return Acad::eOk;
}


//取动态属性显示数据
void TDbPipeFitting::GetTips(DList<TObjInfoUnit> &info) const
{
	const TCHAR *szDesc=_T("未知");
	int nCount=m_lstInterface.Length();
	switch(nCount) {
	case 1: szDesc=_T("堵头"); break;
	case 2: szDesc=_T("弯头"); break;
	case 3: szDesc=_T("三通"); break;
	case 4: szDesc=_T("四通"); break;
	}

	info.Append(new TObjInfoUnit(_T("对象类型"), szDesc));
}

// 对st类型的接口进行重新连接
void TDbPipeFitting::UpdateLinkage(const XPoint &ptAt,
								   TPipeSys::SysType st,
								   const DList<AcDbObjectId> &idPipes)
{
	assertWriteEnabled();
	m_ptLocation = ptAt;

	TDbPipeNode::UpdateLinkage(ptAt,st,idPipes);

	/*//m_lstInterface.Reset();
	RemoveInterface(st);
	for(int i=0; i<idPipes.Length(); i++) {
		const AcDbObjectId &id=idPipes[i];
		OPENOBJ_BEGIN(id, AcDb::kForRead, TDbPipe, pPipe);
		if(pPipe) {
			TPipeInterface iFace;
			iFace.m_sysType = st;
			iFace.m_faceType = TPipeInterface::kNodeLocation;
			iFace.m_sSysLabel = pPipe->GetSysLabel();
			iFace.m_idPipe = id;
			if(m_ptLocation.Distance(pPipe->startPoint)<PS_SNAP) {
				iFace.m_ptLocation = pPipe->startPoint;
				AcGeVector3d vt;
				pPipe->getFirstDeriv(pPipe->startPoint, vt);
				iFace.m_vtLocation = vt;
				AddInterface(iFace);
			} else if(m_ptLocation.Distance(pPipe->endPoint)<PS_SNAP) {
				iFace.m_ptLocation = pPipe->endPoint;
				AcGeVector3d vt;
				pPipe->getFirstDeriv(pPipe->endPoint, vt);
				iFace.m_vtLocation = XVector3D(-vt[0], -vt[1], -vt[2]);
				AddInterface(iFace);
			}
		}
		OPENOBJ_END();
	}*/
}

Acad::ErrorStatus 
TDbPipeFitting::GetExtents(XPoint &ptLow, XPoint &ptUp) const
{
	Acad::ErrorStatus es = TDbPipeNode::GetExtents(ptLow,ptUp);
	if(es==Acad::eOk) {
		if(ptLow==XPoint()&&ptUp==XPoint()) {
			ptLow = m_ptLocation;
			ptUp = m_ptLocation;
		} else {
			ptLow = Min(ptLow,m_ptLocation);
			ptUp = Max(ptUp,m_ptLocation);
		}
	}
	return es;
}


void InitDbPipeFitting(BOOL bTrue)
{
    if(bTrue) {
        TDbPipeFitting::rxInit();
		TDbPipeFitting::InitMatchProtocol(TRUE);
    } else {
		deleteAcRxClass(TDbPipeFitting::desc());
		TDbPipeFitting::InitMatchProtocol(FALSE);
    }
}

CString TDbPipeFitting::GetXml(const AcGeMatrix3d& mat) const
{	
	TPipeSys::ModelType modelType =  TPipeSys::kModel;
	int nMaterial = -1;
	TPipeSys::SysType sysType = TPipeSys::kUnknownSys;
	TPipeInterface face;
	GetInterface(0, face);	
	AcDbObjectId PipeId = face.m_idPipe; 
	OPENOBJ_BEGIN(PipeId, AcDb::kForRead, TDbPipe, pPipe);
	if(pPipe != NULL)
	{
		nMaterial = pPipe->GetMaterial();
		sysType = pPipe->GetSysType();
		modelType = pPipe->GetModelType();
    } 
	OPENOBJ_END();

	if (modelType == TPipeSys::kSystem) // 系统图
	{
		return CString();
	}

	
	TXmlTree xmlTree;
	CString csText;
	AcGePoint3d pt;
	CString csX, csY, csZ;
	int nPreci = 3; // 精度
	
	POSITION posRoot = xmlTree.Insert(_T("ATS_PIPEFITTING"), NULL, NULL);
	{
		xmlTree.SetAttribute(posRoot, _T("name"), _T("水管附件"));
		xmlTree.SetAttribute(posRoot, _T("comment"), _T("上华对象名称"));
	}
	
	POSITION posItemMaterial = xmlTree.Insert(_T("Material"),posRoot, NULL);
	{ 
		xmlTree.SetAttribute(posItemMaterial, _T("name"), _T("水管材料"));
		xmlTree.SetAttribute(posItemMaterial, _T("comment"), _T("水管使用的材料"));

		XStringList lst;
		GetPipeMaterial(lst);
		if (lst.Length() > 0 && nMaterial != -1) // 获得材质时，进行查找 cet 2013.6.26 add 
		{
			CString strMat = lst[nMaterial];
		    xmlTree.SetItemText(posItemMaterial, strMat);
		}		
	}

	POSITION posItemType = xmlTree.Insert(_T("Style"),posRoot, posItemMaterial);
	{ 
		xmlTree.SetAttribute(posItemType, _T("name"), _T("系统类型"));
		xmlTree.SetAttribute(posItemType, _T("comment"), _T("水管所属系统"));
		if (sysType != TPipeSys::kUnknownSys)
		{
			xmlTree.SetItemText(posItemType, GetSystypeName(sysType));
		}			
	}

	POSITION posItemLocPt = xmlTree.Insert(_T("Location"), posRoot, posItemType);
	{ 
		xmlTree.SetAttribute(posItemLocPt, _T("name"), _T("连接点位置"));
		xmlTree.SetAttribute(posItemLocPt, _T("comment"), _T("中心连接点位置"));
		XPoint ptLoc = m_ptLocation;
		ptLoc.TransformBy(mat);
		csX = DoubleToString(ptLoc.x, nPreci);
		csY = DoubleToString(ptLoc.y, nPreci);
		csZ = DoubleToString(ptLoc.z, nPreci);	
		csText.Format(_T("%s,%s,%s"), csX, csY, csZ);
		xmlTree.SetItemText(posItemLocPt, csText);
	}
	
	POSITION posItemInter = xmlTree.Insert(_T("Interface"), posRoot, posItemLocPt);
	POSITION posCur = NULL;

	int nNum = GetInterfaceNum();
	if (nNum == 2) // 弯头
	{
		XPoint pt5, pt6;
		//1 首先得到弯头连接2管线的管径
		double dDn1(0), dDn2(0), dDn3(0), dDn4(0);
		AcDbCurve *pCurve1 = NULL;
		AcDbCurve *pCurve2 = NULL;
		for(int i = 0; i < 2; i++)
		{
			TPipeInterface face;
			GetInterface(i, face);
			
			AcDbObjectId nextPipeId = face.m_idPipe; 
			OPENOBJ_BEGIN(nextPipeId, AcDb::kForRead, TDbPipe, pPipe);
			if(pPipe != NULL)
			{
				if(i == 0)
				{
					pCurve1 = pPipe->AsAcDbCurve();
					dDn1 = pPipe->GetDnDiameter();
					dDn3 = dDn1;
//					cet 2018.2.2 modify 通过文件查询外径，对实体绘制效率影响较大 
//					dDn1 = GetPipeOutDByDn(pPipe->GetMaterial(), dDn1);
					dDn1 = pPipe->OuterDn();
				}
				else
				{
					pCurve2 = pPipe->AsAcDbCurve();
					dDn2 = pPipe->GetDnDiameter();
					dDn4 = dDn2;
//                  cet 2018.2.2 modify 通过文件查询外径，对实体绘制效率影响较大 
//					dDn2 = GetPipeOutDByDn(pPipe->GetMaterial(), dDn2);
					dDn2 = pPipe->OuterDn();
				}
			}
			OPENOBJ_END();
		}

		if(DocGetMeterUnitDraw())
		{
			dDn1 = dDn1 / 1000.0;
			dDn2 = dDn2 / 1000.0;
		}

		dDn1 = dDn1 / 2;//转半径
		dDn2 = dDn2 / 2;
		double dDist =dDn1;
		if (dDn1 < dDn2)
		{
			dDist = dDn2;
		}
		
		GetPointAtDist(pCurve1, dDist*3, pt5);
		GetPointAtDist(pCurve2, dDist*3, pt6);

		POSITION posItemPt1 = xmlTree.Insert(_T("Point1"), posItemInter, NULL);
		{
			csText = _T("分支点1位置");
			xmlTree.SetAttribute(posItemPt1, _T("name"), csText);
			pt5.TransformBy(mat);
			csX = DoubleToString(pt5.x, nPreci);
			csY = DoubleToString(pt5.y, nPreci);
			csZ = DoubleToString(pt5.z, nPreci);	
			csText.Format(_T("%s,%s,%s"), csX, csY, csZ);
			xmlTree.SetItemText(posItemPt1, csText);
		}
		
		POSITION posItemDn1 = xmlTree.Insert(_T("DN1"), posItemInter, posItemPt1);
		{
			csText = _T("分支点1管径");
			xmlTree.SetAttribute(posItemDn1, _T("name"), csText);
			csText = DoubleToString(dDn3, nPreci);
			xmlTree.SetItemText(posItemDn1, csText);
		}

		POSITION posItemPt2 = xmlTree.Insert(_T("Point2"), posItemInter, posItemDn1);
		{
			csText = _T("分支点2位置");
			xmlTree.SetAttribute(posItemPt2, _T("name"), csText);
			pt6.TransformBy(mat);
			csX = DoubleToString(pt6.x, nPreci);
			csY = DoubleToString(pt6.y, nPreci);
			csZ = DoubleToString(pt6.z, nPreci);	
			csText.Format(_T("%s,%s,%s"), csX, csY, csZ);
			xmlTree.SetItemText(posItemPt2, csText);
		}
		
		POSITION posItemDn2 = xmlTree.Insert(_T("DN2"), posItemInter, posItemPt2);
		{
			csText = _T("分支点2管径");
			xmlTree.SetAttribute(posItemDn2, _T("name"), csText);
			csText = DoubleToString(dDn4, nPreci);
			xmlTree.SetItemText(posItemDn2, csText);
		}

		posCur = posItemDn2;
	} 
	else
	{
		XPoint pt1, pt2;
        double dDn(0), dDn2(0);
		for(int i = 0 ; i < nNum; i++)
		{
			TPipeInterface face;
			GetInterface(i, face);
			AcDbObjectId nextPipeId = face.m_idPipe; 
			AcDbCurve *pCurve1 = NULL;
			OPENOBJ_BEGIN(nextPipeId, AcDb::kForRead, TDbPipe, pPipe);
			if(pPipe != NULL)
			{
				pCurve1 = pPipe->AsAcDbCurve();
				dDn = pPipe->GetDnDiameter();
				dDn2 = dDn;
//				cet 2018.2.2 modify 通过文件查询外径，对实体绘制效率影响较大
//				dDn = GetPipeOutDByDn(pPipe->GetMaterial(), dDn);
				dDn = pPipe->OuterDn();
			}
			OPENOBJ_END();
			
			if(DocGetMeterUnitDraw())
			{
				dDn = dDn * 0.001;
			}
			
			double nDist = dDn * 1.2;
			double nFactor(1.0);
			BOOL bOk(FALSE);
			
			bOk = GetPointAtDist(pCurve1, nDist*0.8, pt1);
			if (bOk)
			{
				bOk = GetPointAtDist(pCurve1, nDist, pt2);
			}
			
			if (!bOk)
			{
				delete pCurve1; // cet 2011.11.21 add 
				return _T("");
			}
			
			if(pCurve1 != NULL)
			{
				delete pCurve1;
			}
			
			pt = pt2;
			
			csText.Format(_T("Point%d"), i + 1);
			POSITION posItemLocPt = xmlTree.Insert(csText, posItemInter, posCur);
			{
				csText.Format(_T("分支点%d位置"), i + 1);
				xmlTree.SetAttribute(posItemLocPt, _T("name"), csText);
				pt.transformBy(mat);
				csX = DoubleToString(pt.x, nPreci);
				csY = DoubleToString(pt.y, nPreci);
				csZ = DoubleToString(pt.z, nPreci);	
				csText.Format(_T("%s,%s,%s"), csX, csY, csZ);
				xmlTree.SetItemText(posItemLocPt, csText);
			}
			
			csText.Format(_T("DN%d"), i + 1);
			POSITION posItemDn = xmlTree.Insert(csText, posItemInter, posItemLocPt);
			{
				csText.Format(_T("分支点%d管径"), i + 1);
				xmlTree.SetAttribute(posItemDn, _T("name"), csText);
				csText = DoubleToString(dDn2, nPreci);
				xmlTree.SetItemText(posItemDn, csText);
			}
			posCur = posItemDn;
		 }  
	}

	POSITION posItemId = xmlTree.Insert(_T("Object_ID"), posRoot, posItemInter);
	{
		xmlTree.SetAttribute(posItemId, _T("name"), _T("ID"));
		xmlTree.SetAttribute(posItemId, _T("comment"), _T("连接件ID"));
		csText.Format(_T("%ld"), objectId().asOldId());
		xmlTree.SetItemText(posItemId, csText);
	}
   
	CString csXml = xmlTree.GetXml();
	int nIndex = -1;
	nIndex = csXml.Find(_T("</ATS_PIPEFITTING>"));
	if (nIndex != -1)
	{
		CString sTemp = TDbPipeNode::GetXml(mat); 
		csXml.Insert(nIndex, sTemp);
	}
	return csXml;
}

bool TDbPipeFitting::IsLinkedPipeCanal() const
{
	int nNum = GetInterfaceNum();
	for (int i = 0; i < nNum; ++i)
	{
		OPENOBJ_BEGIN(GetIPipe(i), AcDb::kForRead, TDbPipeCanal, pCanal);
		if (pCanal != NULL)
		{
			if (!pCanal->isKindOf(TDbCableTrench::desc()))
			{
				return true;
			}
		}
		OPENOBJ_END();
	}
	return false;
}