88 lines
2.3 KiB
C++
88 lines
2.3 KiB
C++
//-----------------------------------------------------------------------------+
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// Copyright (C), 1998-2007, SH Software Co. Ltd.
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// = FileName : XDirectionCurve类
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// = Version : ver2.0
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// = Author : zjq
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// = CreateDate : 2002-09-09
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// = Description: XDirectionCurve类声明
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// = Maintainers:
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//
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//-----------------------------------------------------------------------------+
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#ifndef _XDIRECTIONCURVE_H_
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#define _XDIRECTIONCURVE_H_
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#ifndef _XCURVESEGMENT_H_
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#include "XCurveSegment.h"
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#endif
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#ifndef _XARC_H_
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#include "XArc.h"
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#endif
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#ifndef _XPOLY2D_H_
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#include "XPoly2D.h"
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#endif
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#ifndef _XPOINT_H_
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#include "XPoint.h"
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#endif
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#ifndef _XPointDir2d_H_
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#include "XPointDir2d.h"
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#endif
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class GEOAPI XDirectionCurve : public XCurveSegment
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{
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public:
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XDirectionCurve(int flg = LS_FINITE);
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XDirectionCurve(const XArc &ar, int bMinus = 0);
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XDirectionCurve(const XDirectionCurve &src);
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XDirectionCurve(const XPoint &spt, const XPoint &ept, ads_real dAng = 0.0, int flg = LS_FINITE);
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virtual ~XDirectionCurve();
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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 XPoint &src) const;
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virtual int OnWhichSide1(const XPoint &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, XPointDir2d &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(XPoly2D &poly) const;
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virtual void SetPoints(const XPoint &ptStart, const XPoint &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(XPoint &tmpt) const;
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virtual ads_real Direction(const XPoint &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 XPoint &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 XPoint &pt) const;
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// dist left<0 / right>0
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virtual XCurveSegment GetCurve() const;
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virtual XDirectionCurve Offset(ads_real dist, int flg) const;
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virtual bool IsDirectionCurve();
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XArc GetArc() const;
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};
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#endif
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