#pragma once

//-------------------------------------------------------------------------------------------------------+
// Copyright (C), 1998-2007, bj Software Co. Ltd.
// = FileName	:   Aec3dFaceplan.h
// = Version	:   ver2.0
// = Author		:   
// = CreateDate	:   2002-09-09
// = Description:   描述法向量是 z 的 常见面
// = Maintainers: 
//                  
//-------------------------------------------------------------------------------------------------------+

typedef struct Face3Pt
{
	AcGePoint3d pt[3];
}FACE3PT;

class Aec3dFaceplan
{
public:
			 Aec3dFaceplan(void);
	virtual ~Aec3dFaceplan(void);

	enum Faceplan
	{	
		kRect   = 1,	//矩形面
		kCircle = 2,	//圆形面
		kElbow  = 3,	//弯头形面
		kTrape  = 4,	//梯形面
		kFaces  = 5,	//其他三角面组成
	};

public:

	void AddFace(AcGePoint3d& pt1,AcGePoint3d& pt2,AcGePoint3d& pt3);

	void AddFace(AcGePoint3d* pt,Aec3dFaceplan::Faceplan ePlan);

	BOOL IsInside(const AcGePoint3d& ptGe);

	double Elevation();

	void ExtractFaces(AcDbVoidPtrArray& arFaces);

	void Test2Db();

	int  NumberFaces(){return m_arFaces.length();}

	static BOOL PointOutsideTriangle(const AcGePoint3d& ptGe1,const AcGePoint3d& ptGe2,
									 const AcGePoint3d& ptGe3,const AcGePoint3d& ptGeT);

	static BOOL PointOutsideRect(const AcGePoint3d& ptGe1,const AcGePoint3d& ptGe2,
								 const AcGePoint3d& ptGe3,const AcGePoint3d& ptGe4,
								 const AcGePoint3d& ptGeT);
protected:

	AcArray<Face3Pt>	m_arFaces;   //其他三角面
	AcGePoint3d			m_ptGe[5];	 //共用数据[enum 1-4]
	Aec3dFaceplan::Faceplan m_eType; //面类型

public:
	BOOL				m_bValid;
};