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// Geometric Tools, LLC
// Copyright (c) 1998-2014
// 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: 5.0.1 (2010/10/01)
#include "Wm5MathematicsPCH.h"
#include "Wm5ConvexHull1.h"
#include "Wm5Memory.h"
namespace Wm5
{
//----------------------------------------------------------------------------
template <typename Real>
ConvexHull1<Real>::ConvexHull1 (int numVertices, Real* vertices,
Real epsilon, bool owner, Query::Type queryType)
:
ConvexHull<Real>(numVertices, epsilon, owner, queryType),
mVertices(vertices)
{
assertion(mVertices != 0, "Must provide vertices\n");
std::vector<SortedVertex> sortedArray(mNumVertices);
int i;
for (i = 0; i < mNumVertices; ++i)
{
sortedArray[i].Value = mVertices[i];
sortedArray[i].Index = i;
}
std::sort(sortedArray.begin(), sortedArray.end());
Real range = sortedArray[mNumVertices-1].Value - sortedArray[0].Value;
if (range >= mEpsilon)
{
mDimension = 1;
mNumSimplices = 2;
mIndices = new1<int>(2);
mIndices[0] = sortedArray[0].Index;
mIndices[1] = sortedArray[mNumVertices-1].Index;
}
}
//----------------------------------------------------------------------------
template <typename Real>
ConvexHull1<Real>::~ConvexHull1 ()
{
if (mOwner)
{
delete1(mVertices);
}
}
//----------------------------------------------------------------------------
template <typename Real>
const Real* ConvexHull1<Real>::GetVertices () const
{
return mVertices;
}
//----------------------------------------------------------------------------
template <typename Real>
ConvexHull1<Real>::ConvexHull1 (const char* filename, int mode)
:
ConvexHull<Real>(0, (Real)0, false, Query::QT_REAL),
mVertices(0)
{
bool loaded = Load(filename, mode);
assertion(loaded, "Failed to load file\n");
WM5_UNUSED(loaded);
}
//----------------------------------------------------------------------------
template <typename Real>
bool ConvexHull1<Real>::Load (const char* filename, int mode)
{
FileIO inFile(filename, mode);
if (!inFile)
{
return false;
}
ConvexHull<Real>::Load(inFile);
if (mOwner)
{
delete1(mVertices);
}
mOwner = true;
mVertices = new1<Real>(mNumVertices);
inFile.Read(sizeof(Real), mNumVertices, mVertices);
inFile.Close();
return true;
}
//----------------------------------------------------------------------------
template <typename Real>
bool ConvexHull1<Real>::Save (const char* filename, int mode) const
{
FileIO outFile(filename, mode);
if (!outFile)
{
return false;
}
ConvexHull<Real>::Save(outFile);
outFile.Write(sizeof(Real), mNumVertices, mVertices);
outFile.Close();
return true;
}
//----------------------------------------------------------------------------
//----------------------------------------------------------------------------
// Explicit instantiation.
//----------------------------------------------------------------------------
template WM5_MATHEMATICS_ITEM
class ConvexHull1<float>;
template WM5_MATHEMATICS_ITEM
class ConvexHull1<double>;
//----------------------------------------------------------------------------
}
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