134 lines
2.3 KiB
C++
134 lines
2.3 KiB
C++
//-------------------------------------------------------------------------------------------------------+
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// Copyright (C), 1998-2007, Beijing Tangent Software Co. Ltd.
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// = FileName : TGMeshNode3D 类
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// = Version : ver2.0
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// = Author : wlw
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// = CreateDate : 2002-09-09
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// = Description: TGMeshNode3D 定义
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// = Maintainers:
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//
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//-------------------------------------------------------------------------------------------------------+
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#include "StdAfx.h"
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#include "TGMeshNode3D.h"
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TGMeshNode3D::TGMeshNode3D(const TGPoint&pt):TGPoint(pt)
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{
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}
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TGMeshNode3D::~TGMeshNode3D()
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{
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Clear();
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}
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void TGMeshNode3D::AppendEdge(TGMeshEdge3D* pEdge)
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{
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m_lstEdge.AddTail(pEdge);
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}
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void TGMeshNode3D::Clear()
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{
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TDualPtrList<TGMeshEdge3D*> temp;
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temp.Conbine(m_lstEdge);
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}
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TGMeshEdge3D* TGMeshNode3D::GetOnlyEdge()
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{
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return m_lstEdge.IsEmpty()?NULL:m_lstEdge[0];
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}
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void TGMeshNode3D::RemoveEdge(TGMeshEdge3D*pEdge)
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{
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if (m_lstEdge.FindTo(pEdge))
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{
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m_lstEdge.FetchCur();
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}
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}
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bool TGMeshNode3D::IsEndNode() const
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{
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return m_lstEdge.GetLength() == 1;
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}
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void TGMeshNode3D::Arrange()
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{
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}
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TGMeshEdge3D* TGMeshNode3D::FindNextEdge(TGMeshEdge3D* pEdgeFrom)
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{
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if (IsEndNode())
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{
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return NULL;
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}
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m_lstEdge.FindTo(pEdgeFrom);
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m_lstEdge.MoveToNext();
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if (m_lstEdge.IsOut())
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{
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m_lstEdge.MoveToFirst();
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}
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return m_lstEdge.GetCurData();
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}
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TGMeshEdge3D* TGMeshNode3D::FindPreEdge(TGMeshEdge3D* pEdgeFrom)
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{
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if (IsEndNode())
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{
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return NULL;
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}
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m_lstEdge.FindTo(pEdgeFrom);
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m_lstEdge.MoveToPre();
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if (m_lstEdge.IsOut())
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{
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m_lstEdge.MoveToLast();
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}
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return m_lstEdge.GetCurData();
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}
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TGMeshEdge3D* TGMeshNode3D::FindNextSDEdge(TGMeshEdge3D* pEdgeFrom)
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{
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if (IsEndNode())
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{
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return NULL;
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}
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m_lstEdge.FindTo(pEdgeFrom);
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m_lstEdge.MoveToNext();
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if (m_lstEdge.IsOut())
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{
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m_lstEdge.MoveToFirst();
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}
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TGMeshEdge3D *pEdge = m_lstEdge.GetCurData();
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if (pEdge == pEdgeFrom || pEdge->GetNode(1) != this)
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{
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return NULL;
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}
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return pEdge;
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}
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TGMeshEdge3D* TGMeshNode3D::FindPreSDEdge(TGMeshEdge3D* pEdgeFrom)
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{
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if (IsEndNode())
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{
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return NULL;
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}
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m_lstEdge.FindTo(pEdgeFrom);
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m_lstEdge.MoveToPre();
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if (m_lstEdge.IsOut())
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{
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m_lstEdge.MoveToLast();
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}
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TGMeshEdge3D *pEdge=m_lstEdge.GetCurData();
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if (pEdge == pEdgeFrom || pEdge->GetNode(2) != this)
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{
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return NULL;
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}
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return pEdge;
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} |