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/////////////////////////////////////////////////////////////
// //
// Copyright (c) 2003-2011 by The University of Queensland //
// Earth Systems Science Computational Centre (ESSCC) //
// http://www.uq.edu.au/esscc //
// //
// Primary Business: Brisbane, Queensland, Australia //
// Licensed under the Open Software License version 3.0 //
// http://www.opensource.org/licenses/osl-3.0.php //
// //
/////////////////////////////////////////////////////////////
#include "Foundation/StringUtil.h"
#include <limits>
namespace esys
{
namespace lsm
{
template <typename TmplParticle, typename TmplConnection>
DistConnections<TmplParticle,TmplConnection>::DistConnections(
double maxDist,
Tag defaultTag,
const BoundingBox &bBox,
const BoolVector &circDimensions
)
: m_connectionPoolPtr(new ConnectionPool(4096)),
m_connectionSet(),
m_nTablePtr(),
m_minRadius(std::numeric_limits<double>::max()),
m_maxRadius(-std::numeric_limits<double>::max()),
m_maxDist(maxDist),
m_minPt(bBox.getMinPt()),
m_maxPt(bBox.getMaxPt()),
m_defaultTag(defaultTag)
{
const double gridSize =
(
max(
bBox.getSizes()[0],
max(
bBox.getSizes()[1],
bBox.getSizes()[2]
)
)
)/5.0;
m_nTablePtr =
NTablePtr(
new NTable(
bBox,
gridSize,
circDimensions,
2*gridSize
)
);
}
template <typename TmplParticle, typename TmplConnection>
DistConnections<TmplParticle,TmplConnection>::~DistConnections()
{
}
template <typename TmplParticle, typename TmplConnection>
int DistConnections<TmplParticle,TmplConnection>::getNumParticles() const
{
return m_nTablePtr->size();
}
template <typename TmplParticle, typename TmplConnection>
int DistConnections<TmplParticle,TmplConnection>::getNumConnections() const
{
return m_connectionSet.size();
}
template <typename TmplParticle, typename TmplConnection>
double DistConnections<TmplParticle,TmplConnection>::getMinRadius() const
{
return m_minRadius;
}
template <typename TmplParticle, typename TmplConnection>
double DistConnections<TmplParticle,TmplConnection>::getMaxRadius() const
{
return m_maxRadius;
}
template <typename TmplParticle, typename TmplConnection>
typename DistConnections<TmplParticle,TmplConnection>::ParticleConstIterator
DistConnections<TmplParticle,TmplConnection>::getParticleIterator() const
{
return m_nTablePtr->getIterator();
}
template <typename TmplParticle, typename TmplConnection>
void
DistConnections<TmplParticle,TmplConnection>::createConnection(
const Particle &p1,
const Particle &p2,
Tag tag
)
{
m_connectionSet.insert(
m_connectionPoolPtr->construct(p1.getId(), p2.getId(), tag)
);
}
template <typename TmplParticle>
class CmpParticleId
{
public:
bool operator()(const TmplParticle &p1, const TmplParticle &p2) const
{
return (p1.getId() < p2.getId());
}
bool operator()(const TmplParticle *p1, const TmplParticle *p2) const
{
return (p1->getId() < p2->getId());
}
};
template <typename TmplParticle, typename TmplConnection>
template <typename TmplParticleIterator>
void
DistConnections<TmplParticle,TmplConnection>::create(
TmplParticleIterator it,
Tag tag
)
{
typedef std::set<Particle *, CmpParticleId<Particle> > ParticleSet;
ParticleSet pSet;
while (it.hasNext())
{
Particle &p = it.next();
insert(p);
pSet.insert(&p);
}
m_nTablePtr->resize(getParticleBBox(), 4.1*getMinRadius(), 2.1*getMaxRadius());
for (
typename ParticleSet::const_iterator pIt = pSet.begin();
pIt != pSet.end();
pIt++
)
{
typename NTable::ParticleVector nVector =
m_nTablePtr->getNeighbourVector(
(*pIt)->getPos(),
(*pIt)->getRad() + m_maxDist
);
for (
typename NTable::ParticleVector::const_iterator nIt = nVector.begin();
nIt != nVector.end();
nIt++
)
{
Particle *p1 = (*pIt);
Particle *p2 = (*nIt);
if (
(
(pSet.find(p1) != pSet.end())
&&
(pSet.find(p2) != pSet.end())
&&
(p1->getId() < p2->getId())
)
||
(
((pSet.find(p1)==pSet.end()) && (pSet.find(p2)!= pSet.end()))
||
((pSet.find(p1)!=pSet.end()) && (pSet.find(p2)== pSet.end()))
)
)
{
p1 =
((*pIt)->getId() < (*nIt)->getId())
?
(*pIt)
:
(*nIt);
p2 =
((*pIt)->getId() < (*nIt)->getId())
?
(*nIt)
:
(*pIt);
const double radiusSum =
m_maxDist + p1->getRad() + p2->getRad();
const double radiusSumSqrd = radiusSum*radiusSum;
if (
(p1->getPos() - p2->getPos()).norm2()
<=
(radiusSumSqrd)
)
{
#if 0
console.Debug()
<< "creating connection: \n"
<< StringUtil::toString(*p1)
<< "->"
<< StringUtil::toString(*p2) << "\n";
#endif
createConnection(*p1, *p2, tag);
}
}
}
}
}
template <typename TmplParticle, typename TmplConnection>
template <typename TmplParticleIterator>
void
DistConnections<TmplParticle,TmplConnection>::create(
TmplParticleIterator it
)
{
create(it, getDefaultTag());
}
template <typename TmplParticle, typename TmplConnection>
void
DistConnections<TmplParticle,TmplConnection>::insert(Particle &p)
{
if (p.getRad() < m_minRadius)
{
m_minRadius = p.getRad();
}
if (p.getRad() > m_maxRadius)
{
m_maxRadius = p.getRad();
}
m_nTablePtr->insert(p);
for (int i = 0; i < 3; i++)
{
if (!(m_nTablePtr->getPeriodicDimensions()[i]))
{
if (p.getPos()[i]-p.getRad() < m_minPt[i])
{
m_minPt[i] = p.getPos()[i]-p.getRad();
}
if (p.getPos()[i]+p.getRad() > m_maxPt[i])
{
m_maxPt[i] = p.getPos()[i]+p.getRad();
}
}
}
}
template <typename TmplParticle, typename TmplConnection>
typename DistConnections<TmplParticle,TmplConnection>::Tag
DistConnections<TmplParticle,TmplConnection>::getDefaultTag() const
{
return m_defaultTag;
}
template <typename TmplParticle, typename TmplConnection>
void
DistConnections<TmplParticle,TmplConnection>::setDefaultTag(Tag defaultTag)
{
m_defaultTag = defaultTag;
}
template <typename TmplParticle, typename TmplConnection>
BoundingBox
DistConnections<TmplParticle,TmplConnection>::getParticleBBox() const
{
return BoundingBox(m_minPt, m_maxPt);
}
}
}
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