63 lines
1.5 KiB
C++
63 lines
1.5 KiB
C++
//-----------------------------------------------------------------------------+
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// Copyright (C), 1998-2007, Beijing Tangent Software Co. Ltd.
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// = FileName : TGraphArc.h
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// = Version : ver2.0
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// = Author : xlc
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// = CreateDate : 2002-09-09
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// = Description: 类的声明 图边
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// = Maintainers:
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//
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//-----------------------------------------------------------------------------+
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#ifndef _TGRAPHARC_H_
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#define _TGRAPHARC_H_
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#ifndef _TWFLAG_H_
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#include "TWFlag.h"
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#endif
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class TGraphNode;
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class TGraphPath;
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class GEOAPI TGraphArc : public TWFlag
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{
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public:
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TGraphArc(TGraphNode* pNode0=NULL,TGraphNode*pNode1=NULL);
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//删除时自动断开连接
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virtual ~TGraphArc();
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virtual int CmpArc(const TGraphArc&a) const;
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//子类派生函数返回0时，要保证节点相同!（注意:对于无向边节点无序!）
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bool operator==(const TGraphArc&a) const;
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bool operator!=(const TGraphArc&a) const;
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bool operator> (const TGraphArc&a) const;
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bool operator< (const TGraphArc&a) const;
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//TNode
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//支持端点相同情况(封闭Arc)
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TGraphNode* GetNode(long i);
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//取另一个节点（如果封闭边可能返回原节点)
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TGraphNode* GetOtherNode(TGraphNode* pNode) const;
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//限制使用
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void SetNode(long i,TGraphNode*pNode);
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bool IsValid() const;
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bool IsClosed() const;
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//Connect
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//在两端结点中记录此连接边，建立真正连接
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void Connect();
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//断开连接
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void UnConnect();
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//Path
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//type=0从起点出发,type=1从终点出发
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TGraphPath * FindMesh(int type=0);
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protected:
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TGraphNode *m_pNode0,*m_pNode1;//两端点（对于有向边分别代表起点、终点）
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};
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#endif |