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FreeCAD / src /Mod /Mesh /App /WildMagic4 /Wm4ConvexHull1.cpp
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// SPDX-License-Identifier: BSL-1.0
// Geometric Tools, LLC
// Copyright (c) 1998-2010
// Distributed under the Boost Software License, Version 1.0.
// http://www.boost.org/LICENSE_1_0.txt
// http://www.geometrictools.com/License/Boost/LICENSE_1_0.txt
//
// File Version: 4.10.0 (2009/11/18)
#include "Wm4FoundationPCH.h"
#include "Wm4ConvexHull1.h"
namespace Wm4
{
//----------------------------------------------------------------------------
template <class Real>
ConvexHull1<Real>::ConvexHull1 (int iVertexQuantity, Real* afVertex,
Real fEpsilon, bool bOwner, Query::Type eQueryType)
:
ConvexHull<Real>(iVertexQuantity,fEpsilon,bOwner,eQueryType)
{
assert(afVertex);
m_afVertex = afVertex;
std::vector<SortedVertex> kArray(m_iVertexQuantity);
int i;
for (i = 0; i < m_iVertexQuantity; i++)
{
kArray[i].Value = m_afVertex[i];
kArray[i].Index = i;
}
std::sort(kArray.begin(),kArray.end());
Real fRange = kArray[m_iVertexQuantity-1].Value - kArray[0].Value;
if (fRange >= m_fEpsilon)
{
m_iDimension = 1;
m_iSimplexQuantity = 2;
m_aiIndex = WM4_NEW int[2];
m_aiIndex[0] = kArray[0].Index;
m_aiIndex[1] = kArray[m_iVertexQuantity-1].Index;
}
}
//----------------------------------------------------------------------------
template <class Real>
ConvexHull1<Real>::~ConvexHull1 ()
{
if (m_bOwner)
{
WM4_DELETE[] m_afVertex;
}
}
//----------------------------------------------------------------------------
template <class Real>
const Real* ConvexHull1<Real>::GetVertices () const
{
return m_afVertex;
}
//----------------------------------------------------------------------------
template <class Real>
ConvexHull1<Real>::ConvexHull1 (const char* acFilename)
:
ConvexHull<Real>(0,(Real)0.0,false,Query::QT_REAL)
{
m_afVertex = nullptr;
bool bLoaded = Load(acFilename);
assert(bLoaded);
(void)bLoaded; // avoid warning in Release build
}
//----------------------------------------------------------------------------
template <class Real>
bool ConvexHull1<Real>::Load (const char* acFilename)
{
FILE* pkIFile = System::Fopen(acFilename,"rb");
if (!pkIFile)
{
return false;
}
ConvexHull<Real>::Load(pkIFile);
if (m_bOwner)
{
WM4_DELETE[] m_afVertex;
}
m_bOwner = true;
m_afVertex = WM4_NEW Real[m_iVertexQuantity];
size_t uiSize = sizeof(Real);
if (uiSize == 4)
{
System::Read4le(pkIFile,m_iVertexQuantity,m_afVertex);
}
else // uiSize == 8
{
System::Read8le(pkIFile,m_iVertexQuantity,m_afVertex);
}
System::Fclose(pkIFile);
return true;
}
//----------------------------------------------------------------------------
template <class Real>
bool ConvexHull1<Real>::Save (const char* acFilename) const
{
FILE* pkOFile = System::Fopen(acFilename,"wb");
if (!pkOFile)
{
return false;
}
ConvexHull<Real>::Save(pkOFile);
size_t uiSize = sizeof(Real);
if (uiSize == 4)
{
System::Write4le(pkOFile,m_iVertexQuantity,m_afVertex);
}
else // uiSize == 8
{
System::Write8le(pkOFile,m_iVertexQuantity,m_afVertex);
}
System::Fclose(pkOFile);
return true;
}
//----------------------------------------------------------------------------
//----------------------------------------------------------------------------
// explicit instantiation
//----------------------------------------------------------------------------
template WM4_FOUNDATION_ITEM
class ConvexHull1<float>;
template WM4_FOUNDATION_ITEM
class ConvexHull1<double>;
//----------------------------------------------------------------------------
}