383 lines
10 KiB
C++
383 lines
10 KiB
C++
//-----------------------------------------------------------------------------+
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// Copyright (C), 1998-2007, Beijing Tangent Software Co. Ltd.
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// = FileName : TGGeCurveSegment类
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// = Version : ver2.0
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// = Author : wlw
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// = CreateDate : 2002-09-09
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// = Description: TGGeCurveSegment类声明
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// = Maintainers:
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//
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//-----------------------------------------------------------------------------+
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#ifndef _TGGECURVESEGMENT_H_
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#define _TGGECURVESEGMENT_H_
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#ifndef _TENTITYSET_H_
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#include "TEntitySet.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 _TADSGEPOINTDIR2D_H_
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#include "TADSGePointDir2d.h"
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#endif
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class TGGePoly2D;
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class GEOAPI TGGeCurveSegment : public TGGeLine
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{
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public:
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TGGeCurveSegment(int flg = LS_FINITE);
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TGGeCurveSegment(const TGGeCurveSegment &src);
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TGGeCurveSegment(const TEntitySet & ent, int flg = LS_FINITE);
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TGGeCurveSegment(const TADSGePoint3d &spt, const TADSGePoint3d &ept, ads_real dAng, int flg = LS_FINITE);
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virtual ~TGGeCurveSegment();
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TGGeCurveSegment & operator = (const TGGeLine &ln);
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TGGeCurveSegment & operator = (const TGGeArc &arc);
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TGGeCurveSegment & operator = (const TGGeCircle &cir);
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TGGeCurveSegment & operator = (const TGGeCurveSegment &src);
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bool operator == (const TGGeCurveSegment &src) const;
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//lfy 2010-08-31 增加line,arc的set函数
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TGGeCurveSegment & SetLine(const TADSGePoint3d& pt1, const TADSGePoint3d& pt2);
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TGGeCurveSegment & SetArc(const TADSGePoint3d &spt, const TADSGePoint3d &ept, ads_real dang);
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TGGeCurveSegment & SetCircle(const TADSGePoint3d& ptCen,double dRadius);
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virtual bool IsKindOf(TEntityId entType) const;
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virtual TEntityId Type() const;
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virtual void CopyFrom(const TGGeEntity* pSrc);
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virtual int Make(LPCTSTR lay = NULL) const;
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virtual int MakeEntity(const TEntitySet &e);
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virtual int HitTest2d(const TADSGePoint3d &ptTest) const;
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virtual int OSnap(int nMode, TADSGePoint3d &ptPick) const;
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virtual int GetExtend(TADSGePoint3d &low, TADSGePoint3d &up) const;
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virtual int Intersection(const TGGeArc* pArc, ads_point ptRp1 = NULL, ads_point ptRp2 = NULL) const;
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virtual int Intersection(const TGGeCircle* pCircle, ads_point ptRp1 = NULL, ads_point ptRp2 = NULL) const;
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virtual void TransformBy(ads_matrix mat);
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virtual void SetPoints(const TADSGePoint3d &ptStart, const TADSGePoint3d &ptEnd);
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//图形长度，周长
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virtual ads_real GetLength() const;
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virtual TADSGePoint3d MidPoint() const;
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// 与曲线方向有关的成员
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virtual TGGeArc GetArc() const;
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// 0--左（内）；1－右（外）；2－其他 ---> 枚举,下同
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virtual int OnWhichSide(const TADSGePoint3d &src) const;
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// 0－左；1－右；2－其他；与上面的区别是，弧段作为有限长，在圆外但在弦的左侧算左
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virtual int OnWhichSide1(const TADSGePoint3d &src) const;
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// 从端点开始沿曲线走过给定距离的点向量
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virtual int Polar(ads_real nDist, TADSGePointDir2d &res, int bFromStart = 1) const;
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virtual void AsPoly2D(TGGePoly2D &poly) const;
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virtual ads_real PathArea(TADSGePoint3d &tmpt) const;
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// 取得指向内部的方向，线和弧不支持圆。 pt--0:start; 1--end
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virtual ads_real IDirection(int pt) const;
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// 曲线上的点pt的方向(切向)
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virtual ads_real Direction(const TADSGePoint3d &pt) const;
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// 求通过pt点的法向
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virtual ads_real OrthoDirection(const TADSGePoint3d &pt) const;
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// 求到端点的沿曲线线位移, 在线内距离为正,否则为负, 和Polar配合使用
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// pt如果不在线上的话则先投影
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virtual ads_real PathDistance(const TADSGePoint3d &pt, int bFromStart = 1) const;
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virtual bool IsDirectionCurve();
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int Is(CurveType t) const;
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int MakeArrow(TEntitySet &) const;
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int ProjectToMe(const TADSGePoint3d &src, TADSGePoint3d &res) const;
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int Intersection(const TGGeLine &, ads_point, ads_point) const ;
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int Intersection(const TGGeCurveSegment &, ads_point pt1, ads_point pt2) const;
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int GetSubSegment(const TADSGePoint3d &ptloc, ads_real dchordLen, TGGeCurveSegment &ptres) const;
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//Wcs到展开坐标系
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TADSGePoint3d Wcs2Ecs(TADSGePoint3d pt) const;
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//展开坐标系到Wcs
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TADSGePoint3d Ecs2Wcs(TADSGePoint3d pt) const;
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void Wcs2Ecs(const TGGePoly2D &polyWcs, TGGePoly2D &polyEcs) const;
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void Ecs2Wcs(const TGGePoly2D &polyEcs, TGGePoly2D &polyWcs) const;
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TGGeCircle GetCircle() const;
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TGGeLine GetLine() const;
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//点到曲线的距离, 负数为内/左侧
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double GetDist2Me(TADSGePoint3d ptMid) const;
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double GetChordLength(double nArcLen) const;
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CurveType GetCurveType() const;
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static resbuf *Mask(LPCTSTR lay = NULL);
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resbuf * AsFence(int nCirDiv = 20) const;
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AcDbCurve *AsAcDbCurve() const;
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TGGeCurveSegment Offset(ads_real dDist, int nflg) const;
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TGGeCurveSegment Offset(int lr, ads_real dDist, int nflg) const;
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double GetBulge() const;
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void SetBulge(const double dBulge);
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public:
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ads_real m_dBulge;
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};
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inline bool TGGeCurveSegment::operator == (const TGGeCurveSegment &src) const
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{
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bool bRet = false;
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if (src.GetCurveType() != GetCurveType())
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{
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bRet = false;
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}
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else if (Is(CURVE_LINE))
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{
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bRet = (GetLine() == src.GetLine());
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}
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else if (Is(CURVE_ARC))
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{
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bRet = (GetArc() == src.GetArc());
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}
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else
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{
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bRet = (GetCircle() == src.GetCircle());
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}
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return bRet;
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}
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inline int TGGeCurveSegment::Is(CurveType t) const
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{
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double dBulge = fabs(GetBulge());
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return ((dBulge < 1E-6 && t == CURVE_LINE)
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|| (fabs(2.0 * PI - dBulge) < 1E-5 && t == CURVE_CIRCLE)
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|| (dBulge > 1E-6 && dBulge < 2.0 * PI - 1E-6 && t == CURVE_ARC));
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}
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inline CurveType TGGeCurveSegment::GetCurveType() const
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{
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CurveType t;
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double dBulge = fabs(GetBulge());
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if (dBulge < 1E-6)
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{
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t = CURVE_LINE;
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}
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else if (fabs(2.0 * PI - dBulge) < 1E-5)
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{
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t = CURVE_CIRCLE;
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}
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else
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{
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t = CURVE_ARC;
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}
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return t;
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}
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inline TGGeLine TGGeCurveSegment::GetLine() const
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{
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return *this;
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}
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inline double TGGeCurveSegment::GetChordLength(double nArcLen) const
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{
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double nRes = nArcLen;
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if (Is(CURVE_ARC))
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{
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TGGeArc ar = GetArc();
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double dRadius = ar.GetRadius();
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nRes = 2.0 * dRadius * sin(nArcLen / 2.0 / dRadius);
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}
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return fabs(nRes);
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}
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inline int TGGeCurveSegment::HitTest2d(const TADSGePoint3d &ptTest) const
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{
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CurveType t = GetCurveType();
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int nHitFlag = 0;
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if (t == CURVE_LINE)
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{
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nHitFlag = GetLine().HitTest2d(ptTest);
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}
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else if (t == CURVE_ARC)
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{
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nHitFlag = GetArc().HitTest2d(ptTest);
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}
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else if (t == CURVE_CIRCLE)
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{
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nHitFlag = GetCircle().HitTest2d(ptTest);
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}
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return nHitFlag;
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}
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inline int TGGeCurveSegment::MakeEntity(const TEntitySet &e)
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{
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if (Is(CURVE_LINE))
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{
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return GetLine().MakeEntity(&e);
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}
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if (Is(CURVE_ARC))
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{
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return GetArc().MakeEntity(&e);
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}
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if (Is(CURVE_CIRCLE))
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{
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return GetCircle().MakeEntity(&e);
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}
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return RTERROR;
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}
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inline int TGGeCurveSegment::GetExtend(TADSGePoint3d &lowPt, TADSGePoint3d &upPt) const
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{
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if (Is(CURVE_LINE))
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{
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return TGGeLine::GetExtend(lowPt, upPt);
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}
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else if (Is(CURVE_ARC))
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{
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return GetArc().GetExtend(lowPt, upPt);
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}
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else
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{
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return GetCircle().GetExtend(lowPt, upPt);
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}
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}
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inline TGGeCurveSegment & TGGeCurveSegment::operator = (const TGGeCurveSegment &src)
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{
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if (this != &src)
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{
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m_nFlag = src.m_nFlag;
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m_startPoint = src.m_startPoint;
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m_endPoint = src.m_endPoint;
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m_dBulge = src.m_dBulge;
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}
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return *this;
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}
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inline TGGeCurveSegment & TGGeCurveSegment::operator = (const TGGeLine &ln)
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{
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m_nFlag = ln.m_nFlag;
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m_startPoint = ln.m_startPoint;
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m_endPoint = ln.m_endPoint;
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m_dBulge = 0.0;
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return *this;
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}
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inline TGGeCurveSegment & TGGeCurveSegment::operator = (const TGGeArc &arc)
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{
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//SetLineFlag(LS_FINITE);
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m_nFlag = LS_FINITE;
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TADSGePoint3d ptStart, ptEnd;
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TADSGePoint3d ptCen = arc.GetCenterPt();
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double dRadius = arc.GetRadius();
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ads_polar(ptCen, arc.GetStarAngle(), dRadius, ptStart);
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ads_polar(ptCen, arc.GetEndAngle(), dRadius, ptEnd);
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m_startPoint = ptStart;
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m_endPoint = ptEnd;
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m_dBulge = arc.Bulge();
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return *this;
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}
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inline TGGeCurveSegment & TGGeCurveSegment::operator = (const TGGeCircle &cir)
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{
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TADSGePoint3d ptStart, ptEnd;
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TADSGePoint3d ptCen = cir.GetCenterPt();
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double dRadius = cir.GetRadius();
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ads_polar(ptCen, 0.0, dRadius, ptStart);
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ads_polar(ptCen, PI, dRadius, ptEnd);
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m_startPoint = ptStart;
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m_endPoint = ptEnd;
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m_dBulge = 2.0 * PI;
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return *this;
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}
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class GEOAPI TGGeDirectionCurve : public TGGeCurveSegment
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{
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public:
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TGGeDirectionCurve(int flg = LS_FINITE);
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TGGeDirectionCurve(const TGGeArc &ar, int bMinus = 0);
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TGGeDirectionCurve(const TGGeDirectionCurve &src);
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TGGeDirectionCurve(const TADSGePoint3d &spt, const TADSGePoint3d &ept, ads_real dAng = 0.0, int flg = LS_FINITE);
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virtual ~TGGeDirectionCurve();
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virtual int IsMinusArc() const;
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// 与曲线方向有关的成员
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virtual int OnWhichSide(const TADSGePoint3d &src) const;
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virtual int OnWhichSide1(const TADSGePoint3d &src) const;
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// 从端点开始沿曲线走过给定距离的点向量
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virtual int Polar(ads_real nDist, TADSGePointDir2d &res, BOOL bFromStart = TRUE) const;
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virtual void Reverse();
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virtual void TransUCS(ads_matrix mat);
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virtual void TransUCS(const resbuf *, const resbuf *);
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virtual void AsPoly2D(TGGePoly2D &poly) const;
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virtual void SetPoints(const TADSGePoint3d &ptStart, const TADSGePoint3d &ptEnd);
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// 端点处朝曲线段内部的方向
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virtual ads_real IDirection(int pt) const;
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// 取得指向内部的方向支持Line,Arc，不支持Cir。 pt--0:start; 1--end
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virtual ads_real PathArea(TADSGePoint3d &tmpt) const;
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virtual ads_real Direction(const TADSGePoint3d &pt) const;
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// 求到端点的沿曲线线位移, 在线内距离为正,否则为负, 和Polar配合使用
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// pt如果不在线上的话则先投影
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virtual ads_real PathDistance(const TADSGePoint3d &pt, BOOL bFromStart = TRUE) const;
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// 求通过pt点的法向
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virtual ads_real OrthoDirection(const TADSGePoint3d &pt) const;
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// dist left<0 / right>0
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virtual TGGeCurveSegment GetCurve() const;
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virtual TGGeDirectionCurve Offset(ads_real dist, int flg) const;
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virtual bool IsDirectionCurve();
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TGGeArc GetArc() const;
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};
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#endif |