//-----------------------------------------------------------------------------+
// Copyright (C), 1998-2007, SH Software Co. Ltd.
// = FileName	:   XPoly3DÀà
// = Version	:   ver2.0
// = Author		:   zjq
// = CreateDate	:   2002-09-09
// = Description:   XPoly3DÀàÉùÃ÷
// = Maintainers: 
//                  
//-----------------------------------------------------------------------------+
#ifndef _XPOLY3D_H_
#define _XPOLY3D_H_

#ifndef _XPOLY2D_H_
#include "XPoly2D.h"
#endif

class AcDbCurve;

class GEOAPI XPoly3D : public XPoly2D
{
public:
	
	XPoly3D(int nFlag = 0);
	XPoly3D(const Entity & e);
	XPoly3D(const XPoly2D& poly);
	virtual ~XPoly3D();

	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;
	
	XPoly2D WcsToPlane()const;
	
	XPoly2D WcsToPlane(const AcGeVector3d& vt)const;
};

#endif