144 lines
3.9 KiB
C++
144 lines
3.9 KiB
C++
// SPDX-License-Identifier: LGPL-2.1-or-later
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// Wild Magic Source Code
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// David Eberly
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// http://www.geometrictools.com
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// Copyright (c) 1998-2007
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//
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// This library is free software; you can redistribute it and/or modify it
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// under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation; either version 2.1 of the License, or (at
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// your option) any later version. The license is available for reading at
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// either of the locations:
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// http://www.gnu.org/copyleft/lgpl.html
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// http://www.geometrictools.com/License/WildMagicLicense.pdf
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// The license applies to versions 0 through 4 of Wild Magic.
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//
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// Version: 4.0.0 (2006/06/28)
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namespace Wm4
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{
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//----------------------------------------------------------------------------
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template <class Real>
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LinComp<Real>::LinComp ()
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{
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m_iType = CT_EMPTY;
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m_fMin = Math<Real>::MAX_REAL;
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m_fMax = -Math<Real>::MAX_REAL;
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}
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//----------------------------------------------------------------------------
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template <class Real>
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LinComp<Real>::~LinComp ()
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{
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}
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//----------------------------------------------------------------------------
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template <class Real>
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LinComp<Real>& LinComp<Real>::operator= (const LinComp& rkComponent)
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{
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m_iType = rkComponent.m_iType;
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m_fMin = rkComponent.m_fMin;
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m_fMax = rkComponent.m_fMax;
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return *this;
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}
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//----------------------------------------------------------------------------
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template <class Real>
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int LinComp<Real>::GetType () const
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{
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return m_iType;
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}
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//----------------------------------------------------------------------------
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template <class Real>
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Real LinComp<Real>::GetMin () const
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{
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return m_fMin;
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}
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//----------------------------------------------------------------------------
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template <class Real>
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Real LinComp<Real>::GetMax () const
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{
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return m_fMax;
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}
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//----------------------------------------------------------------------------
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template <class Real>
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bool LinComp<Real>::Contains (Real fParam) const
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{
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return m_fMin <= fParam && fParam <= m_fMax;
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}
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//----------------------------------------------------------------------------
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template <class Real>
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void LinComp<Real>::SetInterval (Real fMin, Real fMax)
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{
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m_iType = GetTypeFromInterval(fMin,fMax);
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m_fMin = fMin;
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m_fMax = fMax;
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}
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//----------------------------------------------------------------------------
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template <class Real>
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int LinComp<Real>::GetTypeFromInterval (Real fMin, Real fMax)
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{
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if (fMin < fMax)
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{
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if (fMax == Math<Real>::MAX_REAL)
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{
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if (fMin == -Math<Real>::MAX_REAL)
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{
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return CT_LINE;
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}
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else
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{
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return CT_RAY;
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}
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}
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else
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{
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if (fMin == -Math<Real>::MAX_REAL)
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{
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return CT_RAY;
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}
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else
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{
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return CT_SEGMENT;
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}
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}
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}
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else if (fMin == fMax)
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{
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if (fMin != -Math<Real>::MAX_REAL && fMax != Math<Real>::MAX_REAL)
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{
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return CT_POINT;
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}
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}
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return CT_EMPTY;
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}
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//----------------------------------------------------------------------------
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template <class Real>
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bool LinComp<Real>::IsCanonical () const
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{
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if (m_iType == CT_RAY)
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{
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return m_fMin == (Real)0.0 && m_fMax == Math<Real>::MAX_REAL;
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}
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if (m_iType == CT_SEGMENT)
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{
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return m_fMin == -m_fMax;
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}
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if (m_iType == CT_POINT)
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{
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return m_fMin == (Real)0.0;
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}
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if (m_iType == CT_EMPTY)
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{
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return m_fMin == Math<Real>::MAX_REAL
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&& m_fMax == -Math<Real>::MAX_REAL;
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}
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// m_iType == CT_LINE
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return true;
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}
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//----------------------------------------------------------------------------
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} //namespace Wm4
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