//-----------------------------------------------------------------------------+
// Copyright (C), 1998-2007, Beijing Tangent Software Co. Ltd.
// = FileName	:   TGGePoly3D类
// = Version	:   ver2.0
// = Author		:   wlw
// = CreateDate	:   2002-09-09
// = Description:   TGGePoly3D类声明
// = Maintainers: 
//                  
//-----------------------------------------------------------------------------+
#ifndef _TGGEPOLY3D_H_
#define _TGGEPOLY3D_H_

#ifndef _TGGEPOLY2D_H_
#include "TGGePoly2D.h"
#endif

class AcDbCurve;

class GEOAPI TGGePoly3D : public TGGePoly2D
{
public:
	
	TGGePoly3D(int nFlag = 0);
	TGGePoly3D(const TEntitySet & e);
	TGGePoly3D(const TGGePoly2D& poly);
	virtual ~TGGePoly3D();

	virtual bool IsKindOf(TEntityId entType) const;
	virtual TEntityId Type() const;

	virtual AcDbCurve* AsAcDbCurve()const;
	
	virtual bool SetAcDbCurve(AcDbCurve* pCurve);

	bool IsPlanear()const;
	
	AcGeVector3d GetNormal(bool bCheckConcave)const;
	
	TGGePoly2D WcsToPlane()const;
	
	TGGePoly2D WcsToPlane(const AcGeVector3d& vt)const;
};

#endif