155 lines
4.3 KiB
C++
155 lines
4.3 KiB
C++
//-----------------------------------------------------------------------------+
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// Copyright (C), 1998-2007, Beijing Tangent Software Co. Ltd.
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// = FileName : TGGeArc弧类
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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: TGGeArc类声明
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// = Maintainers:
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//
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//-----------------------------------------------------------------------------+
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#ifndef _TGGEARC_H_
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#define _TGGEARC_H_
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#ifndef _TGGECIRCLE_H_
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#include "TGGeCircle.h"
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#endif
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#ifndef _TGGESECTOR_H_
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#include "TGGeSector.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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class TEntitySet;
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class GEOAPI TGGeArc : public TGGeCircle, public TGGeSector
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{
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public :
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TGGeArc();
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TGGeArc(const TGGeArc &src);
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TGGeArc(const TEntitySet &aCircle);
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TGGeArc(const TEntitySet &aArc, ads_matrix mat);
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TGGeArc(const TADSGePoint3d &spt, const TADSGePoint3d &ept, ads_real dang);
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TGGeArc(const TADSGePoint3d &ptStart, const TADSGePoint3d &pt2, const TADSGePoint3d &ptEnd);
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TGGeArc(ads_point ptcenter, double dradius, double ptstartAngle, double ptendAngle);
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virtual ~TGGeArc();
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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* pImpSrc);
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virtual int Make(const TCHAR *szlay = NULL) const;
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virtual int Modify(const TEntitySet* pEnt) const;
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virtual int GetExtend(ads_point lowPt, ads_point upPt) const;
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virtual int MakeEntity(const TEntitySet* pEnt) const;
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virtual int GetSubArc(const TADSGePoint3d &ptloc, ads_real dchordLen, TGGeArc &arcRes) const;
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//图形长度，周长
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virtual ads_real GetLength() const;
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TGGeArc& operator = (const TGGeSector &src);
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TGGeArc& operator = (const TGGeArc &src);
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bool operator == (const TGGeArc &src) const;
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int operator ! () const;
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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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bool Set(const TADSGePoint3d &spt, const TADSGePoint3d &ept, ads_real dang);
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bool Set(const TADSGePoint3d &ptStart, const TADSGePoint3d &ptOn, const TADSGePoint3d &ptEnd);
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void SetAngleByPoints(const TADSGePoint3d &ptStart, const TADSGePoint3d &ptEnd);
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void GetStartPoint(TADSGePoint3d &ptStart) const;
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void GetEndPoint(TADSGePoint3d &ptEnd) const;
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void MidPoint(TADSGePoint3d &ptres) const;
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TADSGePoint3d MidPoint() const;
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//求弦长
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ads_real ChordLength() const;
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// 扇形面积
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ads_real Area() const;
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//起点到终点的积分面积
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ads_real PathArea() const;
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TGGeArc Offset(ads_real dist) const;
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virtual void TransUCS(ads_matrix mat);
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//上华direction
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ads_real IDirection(int pt) const;
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ads_real ODirection(int pt) const;
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virtual int Intersection(const TGGeLine* pLine, ads_point ptRp1 = NULL, ads_point ptRp2 = NULL) 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* pCir, ads_point ptRp1 = NULL, ads_point ptRp2 = NULL) const;
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ads_real * SelectNear(ads_point pt1, ads_point pt2) const;
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int PtOnArc(const TADSGePoint3d &pt) const;
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};
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inline TGGeArc& TGGeArc::operator = (const TGGeSector &src)
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{
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m_dstartAngle = src.m_dstartAngle;
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m_dendAngle = src.m_dendAngle;
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return *this;
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}
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inline TGGeArc& TGGeArc::operator = (const TGGeArc &src)
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{
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if (this != &src)
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{
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m_dstartAngle = src.m_dstartAngle;
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m_dendAngle = src.m_dendAngle;
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m_ptCenter = src.m_ptCenter;
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m_dRadius = src.m_dRadius;
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}
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return *this;
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}
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inline int TGGeArc::operator ! () const
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{
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return (TGGeCircle::operator !() || GetLength() < TchGeLib::_DIST_SNAP);
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}
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inline bool TGGeArc::operator == (const TGGeArc &src) const
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{
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return (TGGeCircle::operator == (src) && TGGeSector::operator == (src));
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}
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inline TGGeArc TGGeArc::Offset(ads_real dist) const
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{
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ads_real r = m_dRadius + dist;
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if (r < TchGeLib::_DIST_SNAP)
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{
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r = 0;
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}
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return TGGeArc(m_ptCenter, r, m_dstartAngle, m_dendAngle);
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}
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inline ads_real TGGeArc::GetLength() const
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{
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return Bulge() * m_dRadius;
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}
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inline ads_real TGGeArc::ChordLength() const
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{
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return fabs(2.0 * m_dRadius * sin(Bulge() / 2.0));
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}
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inline void TGGeArc::MidPoint(TADSGePoint3d &ptres) const
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{
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ads_polar(m_ptCenter, MidAngle(), m_dRadius, ptres);
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}
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inline TADSGePoint3d TGGeArc::MidPoint() const
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{
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TADSGePoint3d ptres;
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ads_polar(m_ptCenter, MidAngle(), m_dRadius, ptres);
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return ptres;
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}
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#endif |