99 lines
2.7 KiB
C++
99 lines
2.7 KiB
C++
//-----------------------------------------------------------------------------+
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// Copyright (C), 1998-2007, Beijing Tangent Software Co. Ltd.
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// = FileName : TGObject.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 几何实体抽象基类
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// = Maintainers:
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//
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//-----------------------------------------------------------------------------+
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#ifndef _TGOBJECT_H_
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#define _TGOBJECT_H_
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#ifndef _TWRUNTIMECLASS_H_
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#include "TWRunTimeClass.h"
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#endif
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#ifndef _TWFLAG_H_
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#include "TWFlag.h"
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#endif
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#ifndef _TPGECOORDSYS_H_
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#include "TPGeCoordSys.h"
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#endif
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#ifndef _TGPOINT_H_
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#include "TGPoint.h"
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#endif
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class TPGeExtend2D;
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class TPGeExtend3D;
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class TGMatrix;
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class TGObjectList;
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class GEOAPI TGObject : public TWRunTimeClass, public TWFlag
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{
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DECLARE_RUN_TIME_CLASS(TGObject)
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public:
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bool operator > (const TGObject&obj) const;
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bool operator < (const TGObject&obj) const;
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virtual ~TGObject();
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//实体有效性,如果非特殊说明，对实体的所有函数调用必须满足实体有效!
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virtual bool IsValid() const;
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virtual TGObject * Clone() const;
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//坐标变换
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virtual void TransformBy(const TGMatrix& pMatrix);
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virtual bool Explode(TGObjectList& res) const;
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//求交,禁止TGObject2D与TGObject3D混合运算!
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//须满足操作顺序可交换规则!结果可能出现冗余
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//此处实现了复合实体与其它实体的分解后求交
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//子类中，基本实体与基本实体的求交一定要重载，基本实体与复杂实体的求交一般要反向进行
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virtual bool Intersect(const TGObject&obj,TGObjectList& res) const;
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//此处实现了对复合实体的包含判断(分解之后对子实体进行判断)
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//子类中对基本实体的包含判断要重载
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//包含判断,禁止TGObject2D与TGObject3D混合运算!
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virtual bool IsInclude(const TGObject&obj) const;
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//此处实现了复合实体的点包含测试(GR_IN/GR_OUT),基本实体类要重载
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//点相对集合的关系判断,要求最少包含判断GR_IN/GR_OUT
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virtual GRelation HitTest(const TGPoint&pt) const;
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//此处实现了复合实体的取包围盒,基本实体类要重载
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//无包围盒返回false
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virtual bool GetExtend2D(TPGeExtend2D& pExt) const;
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//此处实现了复合实体的取包围盒,基本实体类要重载
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//无包围盒返回false
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virtual bool GetExtend3D(TPGeExtend3D& pExt) const;
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//如果ECS与WCS不重合，返回实体坐标系且return true
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virtual bool GetEcs(TPGeCoordSys&ecs) const;
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//采样测试点,不取端点、节点之类的不光滑点!
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virtual TGPoint GetSamplePoint() const;
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//图形输出，调试用
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virtual void Output(int color) const;
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//operate
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//一直分解为基本实体,如果是基本实体，将取得其拷贝
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void ExplodeEx(TGObjectList& pRes) const;
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void TransEcs(TGObject* pObj) const;
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void TransWcs(TGObject* pObj) const;
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bool IsExtendInter(const TPGeExtend2D& pExt) const;
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bool IsExtendInter(const TPGeExtend3D& pExt) const;
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typedef void (*OutputGObject)(const TGObject *pObject,int color);
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static OutputGObject s_pOutputFun;
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};
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#endif |