157 lines
4.1 KiB
C++
157 lines
4.1 KiB
C++
//-------------------------------------------------------------------------------------------------------+
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// Copyright (C), 1998-2007, Beijing Tangent Software Co. Ltd.
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// = FileName : TGPLine2D 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: TGPLine2D 声明
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// = Maintainers:
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//
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//-------------------------------------------------------------------------------------------------------+
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#ifndef _TGPLINE2D_H_
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#define _TGPLINE2D_H_
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#ifndef _TGMLINE2D_H_
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#include "TGMLine2D.h"
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#endif
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#ifndef _TGPOINT_H_
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#include "TGPoint.h"
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#endif
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#ifndef _TPGECIRCLE2D_H_
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#include "TPGeCircle2D.h"
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#endif
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#ifndef _TPGEARC2D_H_
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#include "TPGeArc2D.h"
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#endif
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#ifndef _TARRAY_H_
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#include "TArray.h"
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#endif
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#ifndef _TTABLE_H_
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#include "TTable.h"
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#endif
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#ifndef _TPGELINE2D_H_
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#include "TPGeLine2D.h"
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#endif
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#ifndef _TPGECURVE2D_H_
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#include "TPGeCurve2D.h"
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#endif
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#ifndef _TWFLAG_H_
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#include "TWFlag.h"
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#endif
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#ifndef _TGOBJECTLIST_H_
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#include "TGObjectList.h"
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#endif
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#ifndef _TPGEGLINERAY2D_H_
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#include "TPGeGLineRay2D.h"
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#endif
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#ifndef _TPGEGLINESEG2D_H_
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#include "TPGeGLineSeg2D.h"
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#endif
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class GEOAPI TGPLine2D : public TGMLine2D
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{
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DECLARE_RUN_TIME_CLASS(TGPLine2D)
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public:
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//contruct
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TGPLine2D(long vertexNum=0,bool bClosed=false);
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TGPLine2D(const TArray<TGPoint>& vertexs,bool bClosed=false);
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TGPLine2D(const TTable<TGPoint>& vertexs,bool bClosed=false);
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TGPLine2D(const TArray<TGPoint>& vertexs,const TArray<double>& angles,bool bClosed=false);
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TGPLine2D(const TTable<TGPoint>& vertexs,const TTable<double>& angles,bool bClosed=false);
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TGPLine2D(const TGMLine2D& mLine);
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TGPLine2D(const TPGeCircle2D& cir);
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TGPLine2D(const TPGeArc2D& arc);
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virtual ~TGPLine2D();
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//override TGMLine2D
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virtual void SetVertexNum(long num,bool bCopy=false);
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//消除相邻重合点,如使之有效返回true
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virtual bool RemoveDupPoint();
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virtual bool OffsetSeg(long i,double offset);
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//override TPGeCurve2D
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//参数区间为各段参数区间之和,即[0,GetSegNum()],弧段参数规范到[0,1]
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virtual void Pa2Pt(double pa,TGPoint& pt) const;
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virtual void Pt2Pa(const TGPoint& pt,double& pa) const;
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virtual void Reverse();
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virtual void GetTangent(double pa,TPGeLine2D& line) const;
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//只有相邻段有且只有一点交(封闭且段数为2时，有两点交)
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virtual bool IsSelfCross() const;
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virtual double Integration(double pa0,double pa1) const;
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//如果paDist>0,paDist为弧度间隔,不是曲线参数间隔!
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virtual TGMLine2D* MLinearize(double paDist=0) const;
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virtual TGMLine2D* PLinearize(double paDist=0) const;
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virtual TPGeCurve2D* GetSubCurve(double pa0,double pa1) const;
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virtual bool Offset(double offset);
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//override TGObject
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//节点数大于1，无相邻重合点，所有包络角在(-PI2,PI2)区间
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virtual bool IsValid() const;
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//分解为TPGeGLineSeg2D或TPGeArc2D
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virtual bool Explode(TGObjectList& res) const;
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virtual TGObject * Clone() const;
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virtual GRelation HitTest(const TGPoint& pt) const;
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virtual bool IsInclude(const TGObject& obj) const;
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virtual bool GetExtend2D(TPGeExtend2D& ext) const;
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//edit
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double& operator ()(long i);
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void SetClosed(bool bClosed=true,double angle=0);
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//query
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double GetBulge(long i) const;
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bool IsArc(long i) const;
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void GetSegment(long i,TPGeArc2D& seg) const;
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void GetSegment(long i,TPGeLine2D& seg) const;
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//外部释放
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TPGeCurve2D* GetSegment(long i) const;
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bool IsArcExist() const;
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//operate
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void QuickCut(const TPGeGLine2D& line,TGObjectList& left,TGObjectList& right,TGObjectList& mid) const;
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void QuickCut(const TPGeGLineRay2D& line,TGObjectList& left,TGObjectList& right,TGObjectList& mid) const;
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void QuickCut(const TPGeGLineSeg2D& seg,TGObjectList& left,TGObjectList& right,TGObjectList& mid) const;
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protected:
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//包络角(-PI2,PI2)
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TArray<double> bulges;
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};
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inline void TGPLine2D::GetSegment(long i,TPGeArc2D& seg) const
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{
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seg.Init(points.GetAt(i),points.GetAt((i+1)%points.GetLength()),GetBulge(i));
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}
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inline TPGeCurve2D* TGPLine2D::GetSegment(long i) const
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{
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if(IsArc(i))
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{
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return new TPGeArc2D(points.GetAt(i),points.GetAt((i+1)%points.GetLength()),GetBulge(i));
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}
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else
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{
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return new TPGeGLineSeg2D(points.GetAt(i),points.GetAt((i+1)%points.GetLength()));
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}
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}
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#endif |