//-----------------------------------------------------------------------------+
// Copyright (C), 1998-2007, Beijing Tangent Software Co. Ltd.
// = FileName	:   TGGeSurface3D.h
// = Version	:   ver2.0
// = Author		:   xlc
// = CreateDate	:   2002-09-09
// = Description:   类的声明
// = Maintainers: 
//                  
//-----------------------------------------------------------------------------+
#ifndef _TGGESURFACE3D_H_
#define _TGGESURFACE3D_H_

#ifndef _TGGEREGION2D_H_
#include "TGGeRegion2D.h"
#endif

#ifndef _TADSGEPOINT3D_H_
#include "TADSGePoint3d.h"
#endif

#ifndef _TDPTRLIST_H_
#include "TDPtrList.h"
#endif

#ifndef _TGGEPOLY3D_H_
#include "TGGePoly3D.h"
#endif

#ifndef _TGGESURFACE3D_H_
#include "TGGeSurface3D.h"
#endif

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

#ifndef _TGGE3DFACE_H_
#include "TGGe3DFace.h"
#endif

#ifndef _TGGEREGION2D_H_
#include "TGGeRegion2D.h"
#endif

#ifndef _TADSGEPOINT3D_H_
#include "TADSGePoint3d.h"
#endif

#ifndef _TGGELINE_H_
#include "TGGeLine.h"
#endif

#ifndef _TDPTRLIST_H_
#include "TDPtrList.h"
#endif

class TGGePFace3D;
class TGGeAFace3D;

//有限边界曲面基类
class GEOAPI TGGeSurface3D
{
public:
	
	virtual ~TGGeSurface3D();

	//转化为平面
	virtual void CreatePFace3D(TDPtrList<TGGePFace3D>& lstFace, double nDiv = 30)const = 0;

	//反射区域计算
	virtual bool Reflect(TVector3D vtLightIn,double nElev,TDPtrList<TGGeRegion2D>& polyRes)const = 0;
	
	//阴影计算
	virtual bool GetShadow(TVector3D vtLightIn,double nElev,TDPtrList<TGGeRegion2D> & lstPoly,bool bSpeed = false)const = 0;
	
	//阴影计算
	virtual bool Project(TVector3D vtLightIn,double nElev,const TGGePFace3D& face,TDPtrList<TGGeRegion2D>& lstPoly)const = 0;
};


//竖向面(基线为直线段或圆弧）
class GEOAPI TGGeAFace3D : public TGGeCurveSegment, public TGGeSurface3D
{
public:
	
	TGGeAFace3D();
	
	TGGeAFace3D(TGGeCurveSegment cv,double dThick);
	
	TGGeAFace3D(TGGeAFace3D& face);
	
	//面上一点处
	double GetTopElev()const;
	
	double GetElev()const;
	
	TVector3D GetNormal(TADSGePoint3d pt)const;
	
	//面上一点处切面
	TGGePlane GetPlane(TADSGePoint3d pt)const;
	
	void CreatePFace3D(TGGePFace3D &face)const;
	
	virtual void CreatePFace3D(TDPtrList<TGGePFace3D>&lstFace,double nDiv = 30)const;
	
	//vtLight都必须是单位向量！
	//阴影计算
	virtual bool GetShadow(TVector3D vtLightIn,double nElev,TDPtrList<TGGeRegion2D> &lstPoly,bool bSpeed = false)const;
	
	//计算入射角,入射光线与面法向夹角
	double GetAngle(TADSGePoint3d pt,TVector3D vtLight)const;
	
	//光线反射,返回false代表无反射
	bool Reflect(TADSGePoint3d pt,TVector3D vtLight,TVector3D &vtRes)const;
	
	//是否有反射
	bool IsReflect(TADSGePoint3d pt,TVector3D vtLight)const;
	
	//从一点射出的光线与面求交
	bool LightInt(TADSGePoint3d ptFrom,TVector3D vtLight,TADSGePoint3d &ptInt)const;
	
	//直线代表入射光线,返回false代表无反射（无阻挡）
	bool Reflect(TGGeLine &lineLight,TGGeLine &lineMirror)const; 
	
	//本面反射光线投影到水平面
	virtual bool Reflect(TVector3D vtLightIn,double nElev,TDPtrList<TGGeRegion2D>& polyRes)const;
	
	virtual bool Project(TVector3D vtLightIn,double nElev,const TGGePFace3D& face,TDPtrList<TGGeRegion2D>&lstPoly)const;
	
	//光线返回法
	//反射光线是否照射到一点
	bool IsReflectOn(TADSGePoint3d pt,TVector3D vtLightIn,TADSGePoint3d &ptInt,TVector3D &vtLightOut)const;
	
public:
	
	double m_fThickness;//厚度
};


//三维平面多边形
class GEOAPI TGGePFace3D : public TGGePoly3D, public TGGeSurface3D
{
public:
	TGGePFace3D();
	TGGePFace3D(const TGGePoly2D&poly);
	TGGePFace3D(const TGGe3DFace&face);
	
	virtual ~TGGePFace3D();
	
	virtual bool Reflect(TVector3D vtLightIn,double nElev,TDPtrList<TGGeRegion2D>& polyRes)const;
	
	virtual void CreatePFace3D(TDPtrList<TGGePFace3D>&lstFace,double nDiv=30)const;
	
	//在face遮挡条件下，光线经本面反射，最后在平面上形成的阴影区，考虑了face对入射光线和反射光线的遮挡
	virtual bool Project(TVector3D vtLightIn,double nElev,const TGGePFace3D& face,TDPtrList<TGGeRegion2D>&lstPoly)const;
	
	//阴影计算,vtLight都必须是单位向量！
	virtual bool GetShadow(TVector3D vtLightIn,double nElev,TDPtrList<TGGeRegion2D> &lstPoly,bool bSpeed=false)const;
	
	//所在平面
	TGGePlane GetPlane()const;
	
	//计算入射角,入射光线与面法向夹角
	double GetAngle(TVector3D vtLightIn)const;
	
	//光线反射,返回false代表无反射
	bool Reflect(TVector3D vtLightIn,TVector3D&vtLightOut)const;
	
	//是否有反射
	bool IsReflect(TVector3D vtLightIn)const;
	
	//投影点包含测试
	bool IsInclude(TADSGePoint3d pt)const;
	
	//与直线（段）求交
	bool Intersect(const TGGeLine& line,TADSGePoint3d &ptInt)const;
	
	//从一点射出的光线与面求交,ptFrom在面上时返回false
	bool LightInt(TADSGePoint3d ptFrom,TVector3D vtLight,TADSGePoint3d &ptInt)const;
	
	//直线代表入射光线,返回false代表无反射（无阻挡）
	bool Reflect(TGGeLine &lineLight,TGGeLine&lineMirror)const;
	
	//直线代表入射光线,返回false代表无反射（无阻挡），区别在于光线是否有起点
	bool ReflectSunLight(TGGeLine &lineLight,TGGeLine&lineMirror)const;
	
	//光线返回法
	//反射光线是否照射到这个点,vtLight是本面入射光线,pt在面上时返回false
	bool IsReflectOn(TADSGePoint3d pt,TVector3D vtLightIn,TVector3D&ptInt,TVector3D&vtLightOut)const;
	
	//反射光线是否照射到一系列点，其它同上
	void IsReflectOn(TVector3D vtLightIn,const TDPtrList<TADSGePoint3d> &lstPt,TVector3D& vtLightOut,TDPtrList<bool> &res)const;
	
	//光线反射投影
	//本面反射光线投影到水平面
	bool Reflect(TVector3D vtLightIn,double nElev,TVector3D &vtLightOut,TGGePoly2D& polyRes)const;
	
	//光线经本面反射投影到faceDest，返回覆盖区域，faceDest不能与this相互切割，重合面不反射
	void Reflect(TVector3D vtLightIn,TGGePFace3D faceDest,TVector3D &vtLightOut,TDPtrList<TGGePFace3D>&faceNewList)const;
	
	//光线经本面遮挡而在faceDest造成的阴影区(无反射区）faceDest不能与this相互切割,重合面不遮挡！
	void Project(TVector3D vtLightIn,const TGGePFace3D &faceDest,TDPtrList<TGGePFace3D> &faceNewList)const;
};













#endif