195 lines
3.3 KiB
C++
195 lines
3.3 KiB
C++
//-------------------------------------------------------------------------------------------------------+
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// Copyright (C), 1998-2007, Beijing Tangent Software Co. Ltd.
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// = FileName : TGGeSector 扇形类
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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: TGGeSector 类定义
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// = Maintainers:
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//
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//-------------------------------------------------------------------------------------------------------+
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#include "StdAfx.h"
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#include "TGGeSector.h"
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#include "TchGlobalFunc.h"
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TGGeSector::TGGeSector()
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{
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m_dstartAngle = 0.0;
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m_dendAngle = 2.0*PI;
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}
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TGGeSector::TGGeSector(double dStAng, double dEndAng)
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{
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m_dstartAngle = dStAng;
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m_dendAngle = dEndAng;
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}
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TGGeSector::TGGeSector(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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}
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TGGeSector::TGGeSector(const TEntitySet & ent)
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{
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TEntitySet entTmp = ent;
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if (entTmp.Is(_T("ARC")))
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{
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entTmp.GetData(50, &m_dstartAngle);
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entTmp.GetData(51, &m_dendAngle);
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}
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else
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{
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m_dstartAngle = 0.0;
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m_dendAngle = PI * 2.0;
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}
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}
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TGGeSector::~TGGeSector()
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{
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}
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TGGeSector& TGGeSector::operator = (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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bool TGGeSector::operator == (const TGGeSector &src) const
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{
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return (RealEqual(m_dstartAngle, src.m_dstartAngle, _angSnap) &&
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RealEqual(m_dendAngle, src.m_dendAngle, _angSnap));
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}
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int TGGeSector::operator ! () const
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{
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return Bulge() < _angSnap;
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}
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double TGGeSector::Bulge() const
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{
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ads_real dBulge = m_dendAngle - m_dstartAngle;
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if (dBulge < -1E-6)
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{
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dBulge = 2.0 * PI + dBulge;
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}
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return dBulge;
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}
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void TGGeSector::SetAngles(double dStart, double dEnd)
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{
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m_dstartAngle = dStart;
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m_dendAngle = dEnd;
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}
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void TGGeSector::SetStarAngle(double dAngle)
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{
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m_dstartAngle = dAngle;
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}
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void TGGeSector::SetEndAngle(double dAngle)
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{
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m_dendAngle = dAngle;
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}
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double TGGeSector::GetStarAngle() const
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{
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return m_dstartAngle;
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}
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double TGGeSector::GetEndAngle() const
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{
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return m_dendAngle;
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}
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int TGGeSector::AngleFlag(double dAng) const
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{
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if (AngleRangeTo2PI(dAng - m_dstartAngle) < _angSnap)
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{
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return 1;
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}
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if (AngleRangeTo2PI(dAng - m_dendAngle) < _angSnap)
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{
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return 2;
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}
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int nTag = 0;
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if (m_dstartAngle < m_dendAngle)
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{
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if (dAng > m_dstartAngle && dAng < m_dendAngle)
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{
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nTag = 3;
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}
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else
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{
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nTag = 0;
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}
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}
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else
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{
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if (dAng > m_dstartAngle || dAng < m_dendAngle)
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{
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nTag = 3;
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}
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else
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{
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nTag = 0;
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}
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}
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return nTag;
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}
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double* TGGeSector::NearAngle(double dAng)
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{
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double dEAng = AngleRangeTo2PI(m_dendAngle - m_dstartAngle),
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dSrcAng = AngleRangeTo2PI(dAng - m_dstartAngle);
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if (dSrcAng < _angSnap)
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{
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return &(m_dstartAngle);
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}
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else if (RealEqual(dSrcAng, dEAng, _angSnap))
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{
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return &(m_dendAngle);
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}
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else if (dSrcAng < dEAng) //弧内
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{
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if (dEAng - dSrcAng < dSrcAng)
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{
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return &(m_dendAngle);
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}
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else
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{
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return &(m_dstartAngle);
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}
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}
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else //弧外
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{
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if (dSrcAng - dEAng < 2.0 * PI - dSrcAng)
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{
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return &(m_dendAngle);
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}
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else
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{
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return &(m_dstartAngle);
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}
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}
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}
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void TGGeSector::TransUCS(double dIncAngle)
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{
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m_dstartAngle = AngleRangeTo2PI(m_dstartAngle + dIncAngle);
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m_dendAngle = AngleRangeTo2PI(m_dendAngle + dIncAngle);
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}
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double TGGeSector::MidAngle() const
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{
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return AngleRangeTo2PI(m_dstartAngle + Bulge() / 2.0);
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}
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