138 lines
3.1 KiB
C++
138 lines
3.1 KiB
C++
//-------------------------------------------------------------------------------------------------------+
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// Copyright (C), 1998-2007, Beijing Tangent Software Co. Ltd.
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// = FileName : TPGeCircle2D 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: TPGeCircle2D 声明
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// = Maintainers:
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//
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//-------------------------------------------------------------------------------------------------------+
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#ifndef _TPGECIRCLE2D_H_
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#define _TPGECIRCLE2D_H_
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#ifndef _TPGECURVE2D_H_
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#include "TPGeCurve2D.h"
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#endif
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#ifndef _TPGECIRCLE_H_
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#include "TPGeCircle.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 _TPGELINE2D_H_
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#include "TPGeLine2D.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 _TGMATRIX_H_
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#include "TGMatrix.h"
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#endif
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#ifndef _TGOBJECT_H_
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#include "TGObject.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 _TPGEEXTEND2D_H_
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#include "TPGeExtend2D.h"
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#endif
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class GEOAPI TPGeCircle2D : public TPGeCurve2D,public TPGeCircle
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{
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DECLARE_RUN_TIME_CLASS(TPGeCircle2D)
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public:
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TPGeCircle2D(bool bUnclock = true);
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TPGeCircle2D(const TGPoint& pt,double r,bool bUnclock = true);
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TPGeCircle2D(const TPGeCircle& circle,bool bUnclock = true);
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TPGeCircle2D(const TGPoint& pt0,const TGPoint& pt1,const TGPoint& pt2);
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TPGeCircle2D(const TGPoint& pt0,const TGPoint& pt1,double angle);
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virtual ~TPGeCircle2D();
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//正向圆参数为正向弧度，反向圆参数为反向弧度
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virtual void Pa2Pt(double pa,TGPoint& pt) const;
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//返回区间[0,2PI)
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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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virtual bool IsClosed() const;
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virtual bool IsFinite(bool bStart) const;
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virtual bool IsClockwise() const;
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virtual double Integration(double pa0,double pa1) const;
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virtual double Area() const;
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virtual double Length() const;
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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 double GetMLinePrec() const;
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virtual void Split(const TTable<double> & paTable,TGObjectList& res) 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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//重载 TGObject2D
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virtual void SetElev(double elev);
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virtual double GetElev() const;
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//重载 TGObject
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virtual bool IsValid() const;
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virtual void TransformBy(const TGMatrix& matrix);
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virtual TGObject * Clone() const;
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virtual bool Intersect(const TGObject& obj,TGObjectList& res) const;
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virtual bool IsInclude(const TGObject& obj) const;
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virtual GRelation HitTest(const TGPoint& pt) const;
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virtual bool GetExtend2D(TPGeExtend2D& ext) const;
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//参数点按圆曲线方向排列
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void Init(const TGPoint& pt0,const TGPoint& pt1,const TGPoint& pt2);
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//angle决定朝向
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void Init(const TGPoint& pt0,const TGPoint& pt1,double angle);
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bool IsSameCircle(const TPGeCircle2D& cir,bool bSameDirection = false) const;
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static void SetMLinePreci(double preci);
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public:
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//默认为0.005
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static double g_fMLinePreci;
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};
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#endif
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