218 lines
5.7 KiB
C++
218 lines
5.7 KiB
C++
//-----------------------------------------------------------------------------+
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// Copyright (C), 1998-2007, Beijing Tangent Software Co. Ltd.
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// = FileName : TGGeSurface3D.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
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// = Maintainers:
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//
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//-----------------------------------------------------------------------------+
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#ifndef _TGGESURFACE3D_H_
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#define _TGGESURFACE3D_H_
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#ifndef _TGGEREGION2D_H_
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#include "TGGeRegion2D.h"
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#endif
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#ifndef _TADSGEPOINT3D_H_
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#include "TADSGePoint3d.h"
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#endif
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#ifndef _TDPTRLIST_H_
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#include "TDPtrList.h"
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#endif
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#ifndef _TGGEPOLY3D_H_
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#include "TGGePoly3D.h"
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#endif
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#ifndef _TGGESURFACE3D_H_
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#include "TGGeSurface3D.h"
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#endif
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#ifndef _TGGEPOLY2D_H_
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#include "TGGePoly2D.h"
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#endif
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#ifndef _TGGE3DFACE_H_
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#include "TGGe3DFace.h"
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#endif
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#ifndef _TGGEREGION2D_H_
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#include "TGGeRegion2D.h"
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#endif
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#ifndef _TADSGEPOINT3D_H_
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#include "TADSGePoint3d.h"
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#endif
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#ifndef _TGGELINE_H_
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#include "TGGeLine.h"
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#endif
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#ifndef _TDPTRLIST_H_
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#include "TDPtrList.h"
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#endif
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class TGGePFace3D;
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class TGGeAFace3D;
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//有限边界曲面基类
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class GEOAPI TGGeSurface3D
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{
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public:
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virtual ~TGGeSurface3D();
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//转化为平面
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virtual void CreatePFace3D(TDPtrList<TGGePFace3D>& lstFace, double nDiv = 30)const = 0;
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//反射区域计算
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virtual bool Reflect(TVector3D vtLightIn,double nElev,TDPtrList<TGGeRegion2D>& polyRes)const = 0;
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//阴影计算
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virtual bool GetShadow(TVector3D vtLightIn,double nElev,TDPtrList<TGGeRegion2D> & lstPoly,bool bSpeed = false)const = 0;
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//阴影计算
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virtual bool Project(TVector3D vtLightIn,double nElev,const TGGePFace3D& face,TDPtrList<TGGeRegion2D>& lstPoly)const = 0;
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};
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//竖向面(基线为直线段或圆弧）
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class GEOAPI TGGeAFace3D : public TGGeCurveSegment, public TGGeSurface3D
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{
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public:
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TGGeAFace3D();
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TGGeAFace3D(TGGeCurveSegment cv,double dThick);
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TGGeAFace3D(TGGeAFace3D& face);
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//面上一点处
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double GetTopElev()const;
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double GetElev()const;
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TVector3D GetNormal(TADSGePoint3d pt)const;
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//面上一点处切面
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TGGePlane GetPlane(TADSGePoint3d pt)const;
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void CreatePFace3D(TGGePFace3D &face)const;
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virtual void CreatePFace3D(TDPtrList<TGGePFace3D>&lstFace,double nDiv = 30)const;
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//vtLight都必须是单位向量！
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//阴影计算
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virtual bool GetShadow(TVector3D vtLightIn,double nElev,TDPtrList<TGGeRegion2D> &lstPoly,bool bSpeed = false)const;
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//计算入射角,入射光线与面法向夹角
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double GetAngle(TADSGePoint3d pt,TVector3D vtLight)const;
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//光线反射,返回false代表无反射
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bool Reflect(TADSGePoint3d pt,TVector3D vtLight,TVector3D &vtRes)const;
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//是否有反射
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bool IsReflect(TADSGePoint3d pt,TVector3D vtLight)const;
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//从一点射出的光线与面求交
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bool LightInt(TADSGePoint3d ptFrom,TVector3D vtLight,TADSGePoint3d &ptInt)const;
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//直线代表入射光线,返回false代表无反射（无阻挡）
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bool Reflect(TGGeLine &lineLight,TGGeLine &lineMirror)const;
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//本面反射光线投影到水平面
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virtual bool Reflect(TVector3D vtLightIn,double nElev,TDPtrList<TGGeRegion2D>& polyRes)const;
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virtual bool Project(TVector3D vtLightIn,double nElev,const TGGePFace3D& face,TDPtrList<TGGeRegion2D>&lstPoly)const;
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//光线返回法
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//反射光线是否照射到一点
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bool IsReflectOn(TADSGePoint3d pt,TVector3D vtLightIn,TADSGePoint3d &ptInt,TVector3D &vtLightOut)const;
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public:
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double m_fThickness;//厚度
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};
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//三维平面多边形
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class GEOAPI TGGePFace3D : public TGGePoly3D, public TGGeSurface3D
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{
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public:
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TGGePFace3D();
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TGGePFace3D(const TGGePoly2D&poly);
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TGGePFace3D(const TGGe3DFace&face);
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virtual ~TGGePFace3D();
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virtual bool Reflect(TVector3D vtLightIn,double nElev,TDPtrList<TGGeRegion2D>& polyRes)const;
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virtual void CreatePFace3D(TDPtrList<TGGePFace3D>&lstFace,double nDiv=30)const;
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//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
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virtual bool Project(TVector3D vtLightIn,double nElev,const TGGePFace3D& face,TDPtrList<TGGeRegion2D>&lstPoly)const;
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//阴影计算,vtLight都必须是单位向量！
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virtual bool GetShadow(TVector3D vtLightIn,double nElev,TDPtrList<TGGeRegion2D> &lstPoly,bool bSpeed=false)const;
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//所在平面
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TGGePlane GetPlane()const;
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//计算入射角,入射光线与面法向夹角
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double GetAngle(TVector3D vtLightIn)const;
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//光线反射,返回false代表无反射
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bool Reflect(TVector3D vtLightIn,TVector3D&vtLightOut)const;
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//是否有反射
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bool IsReflect(TVector3D vtLightIn)const;
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//投影点包含测试
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bool IsInclude(TADSGePoint3d pt)const;
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//与直线（段）求交
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bool Intersect(const TGGeLine& line,TADSGePoint3d &ptInt)const;
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//从一点射出的光线与面求交,ptFrom在面上时返回false
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bool LightInt(TADSGePoint3d ptFrom,TVector3D vtLight,TADSGePoint3d &ptInt)const;
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//直线代表入射光线,返回false代表无反射（无阻挡）
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bool Reflect(TGGeLine &lineLight,TGGeLine&lineMirror)const;
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//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
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bool ReflectSunLight(TGGeLine &lineLight,TGGeLine&lineMirror)const;
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//光线返回法
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//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
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bool IsReflectOn(TADSGePoint3d pt,TVector3D vtLightIn,TVector3D&ptInt,TVector3D&vtLightOut)const;
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//反射光线是否照射到一系列点，其它同上
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void IsReflectOn(TVector3D vtLightIn,const TDPtrList<TADSGePoint3d> &lstPt,TVector3D& vtLightOut,TDPtrList<bool> &res)const;
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//光线反射投影
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//本面反射光线投影到水平面
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bool Reflect(TVector3D vtLightIn,double nElev,TVector3D &vtLightOut,TGGePoly2D& polyRes)const;
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//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
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void Reflect(TVector3D vtLightIn,TGGePFace3D faceDest,TVector3D &vtLightOut,TDPtrList<TGGePFace3D>&faceNewList)const;
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//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！
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void Project(TVector3D vtLightIn,const TGGePFace3D &faceDest,TDPtrList<TGGePFace3D> &faceNewList)const;
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};
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#endif |