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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 //
// //
/////////////////////////////////////////////////////////////
#ifndef ESYS_LSMPARTICLEFITTER_H
#define ESYS_LSMPARTICLEFITTER_H
#include "Geometry/RandomBlockGenerator.h"
#include "Geometry/Sphere3d.h"
#include "Geometry/Sphere2d.h"
namespace esys
{
namespace lsm
{
class ParticleFitter
{
public:
typedef RandomBlockGenerator::ParticleVector ParticleVector;
ParticleFitter(RandomBlockGenerator &blockGenerator)
: m_pGenerator(&blockGenerator),
m_successfulFitCount(0),
m_getFitCount(0),
m_failedFitCount(0)
{
}
virtual ~ParticleFitter() {}
virtual SimpleParticle getFitParticle(
const SimpleParticle &particle,
const ParticleVector &neighbours,
const Plane &plane
) = 0;
static const SimpleParticle INVALID;
void incrGetFit()
{
m_getFitCount++;
}
void incrFailedFit()
{
m_failedFitCount++;
}
void incrSuccessfulFit()
{
m_successfulFitCount++;
}
virtual std::string getName() const = 0;
void write(std::ostream &oStream) const
{
oStream
<< (getName() + ": ")
<< "fit count = " << m_getFitCount
<< ", success = " << m_successfulFitCount
<< ", fail = " << m_failedFitCount;
}
std::string toString() const
{
std::stringstream sStream;
write(sStream);
return sStream.str();
}
virtual bool particleFits(const SimpleParticle &particle) const
{
return getGenerator().particleFits(particle);
}
protected:
RandomBlockGenerator &getGenerator()
{
return *m_pGenerator;
}
const RandomBlockGenerator &getGenerator() const
{
return *m_pGenerator;
}
private:
RandomBlockGenerator *m_pGenerator;
int m_successfulFitCount;
int m_getFitCount;
int m_failedFitCount;
};
inline std::ostream &operator<<(std::ostream &oStream, const ParticleFitter &fitter)
{
fitter.write(oStream);
return oStream;
}
class MoveToSurfaceFitter : public ParticleFitter
{
public:
MoveToSurfaceFitter(RandomBlockGenerator &blockGenerator)
: ParticleFitter(blockGenerator)
{
}
virtual std::string getName() const
{
return "Mv to Surface";
}
SimpleParticle moveToSurface(
const SimpleParticle &stationary,
const SimpleParticle &movable
)
{
SimpleParticle moved = movable;
const Vec3 centreDiff = movable.getPos() - stationary.getPos();
const double centreDist = centreDiff.norm();
if (centreDist > 0.0) {
const Vec3 newCentrePos =
stationary.getPos()
+
(centreDiff/(centreDist))*(stationary.getRad() + movable.getRad());
moved.moveTo(newCentrePos);
}
return moved;
}
virtual SimpleParticle getFitParticle(
const SimpleParticle &particle,
const ParticleVector &neighbours,
const Plane &plane
)
{
incrGetFit();
SimpleParticle newParticle = particle;
if (neighbours.size() > 0) {
if (
(particle.getPos() - neighbours[0]->getPos()).norm()
<
(particle.getRad() + neighbours[0]->getRad())
) {
newParticle = moveToSurface(*(neighbours[0]), particle);
}
}
if (newParticle.isValid() && !particleFits(newParticle)) {
newParticle = INVALID;
incrFailedFit();
} else if (newParticle.isValid()) {
incrSuccessfulFit();
}
return newParticle;
}
};
class ThreeDParticleFitter : public ParticleFitter
{
public:
ThreeDParticleFitter(RandomBlockGenerator &blockGenerator)
: ParticleFitter(blockGenerator)
{
}
virtual std::string getName() const
{
return " 3D Fitter";
}
SimpleParticle findAFit(
const SimpleParticle& Po,
const ParticleVector &particleVector
)
{
SimpleParticle fittedParticle = SimpleParticle::INVALID;
Vec3 M;
double r;
int id=Po.getID();
if (particleVector.size() > 3) {
const bool foundFit =
Sphere3D::FillIn(
particleVector[0]->getPos(),
particleVector[1]->getPos(),
particleVector[2]->getPos(),
particleVector[3]->getPos(),
particleVector[0]->getRad(),
particleVector[1]->getRad(),
particleVector[2]->getRad(),
particleVector[3]->getRad(),
M,
r
);
if (foundFit) {
fittedParticle = SimpleParticle(M, r, id);
}
} else {
throw std::runtime_error("findAFit: particleVector argument has fewer than 4 elements.");
}
return fittedParticle;
}
virtual SimpleParticle getFitParticle(
const SimpleParticle &particle,
const ParticleVector &neighbours,
const Plane &plane
)
{
incrGetFit();
SimpleParticle newParticle = INVALID;
if(neighbours.size() > 3){ // at least 4 neighbors
const SimpleParticle &Pi = *(neighbours[0]);
const double ndist=(particle.getPos()-Pi.getPos()).norm();
if (ndist > 0.0) {
newParticle = particle;
if (ndist < Pi.getRad()){ // if Po inside Pi -> move Po to the surface of Pi
newParticle.moveTo(
Pi.getPos()+((particle.getPos()-Pi.getPos())*(Pi.getRad()/ndist))
);
}
const double dist_p = plane.sep(newParticle.getPos());
const double dist_3 = (newParticle.getPos()-neighbours[3]->getPos()).norm()-neighbours[3]->getRad();
if (dist_p > dist_3) { // 4th particle closer than plane -> fit 4 particles
newParticle = findAFit(newParticle, neighbours);
}
else {
newParticle = INVALID;
}
}
}
if (newParticle.isValid() && !particleFits(newParticle)) {
newParticle = INVALID;
incrFailedFit();
} else if (newParticle.isValid()) {
incrSuccessfulFit();
}
return newParticle;
}
};
class TwoDParticleFitter : public ParticleFitter
{
public:
TwoDParticleFitter(RandomBlockGenerator &blockGenerator)
: ParticleFitter(blockGenerator)
{
}
virtual std::string getName() const
{
return " 2D Fitter";
}
SimpleParticle findAFit(
const SimpleParticle& Po,
const ParticleVector &particleVector
)
{
SimpleParticle fittedParticle = SimpleParticle::INVALID;
Vec3 M;
double r;
int id=Po.getID();
if (particleVector.size() > 2) {
const bool foundFit =
Sphere2D::FillIn(
particleVector[0]->getPos(),
particleVector[1]->getPos(),
particleVector[2]->getPos(),
particleVector[0]->getRad(),
particleVector[1]->getRad(),
particleVector[2]->getRad(),
M,
r
);
if (foundFit) {
fittedParticle = SimpleParticle(M, r, id);
}
} else {
throw std::runtime_error("findAFit: particleVector argument has fewer than 3 elements.");
}
return fittedParticle;
}
virtual SimpleParticle getFitParticle(
const SimpleParticle &particle,
const ParticleVector &neighbours,
const Plane &plane
)
{
incrGetFit();
SimpleParticle newParticle = INVALID;
if(neighbours.size() > 2){ // at least 3 neighbors
const SimpleParticle &Pi = *(neighbours[0]);
const double ndist=(particle.getPos()-Pi.getPos()).norm();
if (ndist > 0.0) {
newParticle = particle;
if (ndist < Pi.getRad()){ // if Po inside Pi -> move Po to the surface of Pi
newParticle.moveTo(
Pi.getPos()+((particle.getPos()-Pi.getPos())*(Pi.getRad()/ndist))
);
}
const double dist_p = plane.sep(newParticle.getPos());
const double dist_2 = (newParticle.getPos()-neighbours[2]->getPos()).norm()-neighbours[2]->getRad();
if (dist_p > dist_2) { // 4th particle closer than plane -> fit 4 particles
newParticle = findAFit(newParticle, neighbours);
}
else {
newParticle = INVALID;
}
}
}
if (newParticle.isValid() && !particleFits(newParticle)) {
newParticle = INVALID;
incrFailedFit();
} else if (newParticle.isValid()) {
incrSuccessfulFit();
}
return newParticle;
}
};
class TwoDPlaneParticleFitter : public ParticleFitter
{
public:
TwoDPlaneParticleFitter(RandomBlockGenerator &blockGenerator)
: ParticleFitter(blockGenerator)
{
}
virtual std::string getName() const
{
return " 2D Plane";
}
SimpleParticle findAFit(
const SimpleParticle& particle,
const ParticleVector &particleVector,
const Plane& plane
)
{
SimpleParticle fittedParticle = SimpleParticle::INVALID;
Vec3 M;
double r;
const int id = particle.getID();
if (particleVector.size() > 1) {
const bool foundFit =
Sphere2D::FillInWP(
particleVector[0]->getPos(),
particleVector[1]->getPos(),
plane.GetO(),
plane.GetW(),
particleVector[0]->getRad(),
particleVector[1]->getRad(),
M,
r
);
if (foundFit) {
fittedParticle = SimpleParticle(M, r, id);
}
} else {
throw std::runtime_error("findAFit: particleVector vector contains less than 2 particles.");
}
return fittedParticle;
}
virtual SimpleParticle getFitParticle(
const SimpleParticle &particle,
const ParticleVector &neighbours,
const Plane &plane
)
{
incrGetFit();
SimpleParticle newParticle = INVALID;
if (neighbours.size() >= 2) { // 2 neighbors -> try 2 particles + plane
const SimpleParticle &Pi = *(neighbours[0]);
const double ndist=(particle.getPos()-Pi.getPos()).norm();
if (
(ndist > 0.0)
&&
(
(neighbours.size() == 2)
||
(
plane.sep(particle.getPos())
<
(particle.getPos()-neighbours[2]->getPos()).norm()-neighbours[2]->getRad()
)
)
) {
newParticle = particle;
if (ndist < Pi.getRad()) { // if Po inside Pi -> move Po to the surface of Pi
newParticle.moveTo(
Pi.getPos() + ((particle.getPos() - Pi.getPos()) * (Pi.getRad()/ndist))
);
}
newParticle = findAFit(newParticle, neighbours, plane);
}
}
if (newParticle.isValid() && !particleFits(newParticle)) {
newParticle = INVALID;
incrFailedFit();
} else if (newParticle.isValid()) {
incrSuccessfulFit();
}
return newParticle;
}
};
class ThreeDPlaneParticleFitter : public ParticleFitter
{
public:
ThreeDPlaneParticleFitter(RandomBlockGenerator &blockGenerator)
: ParticleFitter(blockGenerator)
{
}
virtual std::string getName() const
{
return " 3D Plane";
}
SimpleParticle findAFit(
const SimpleParticle& particle,
const ParticleVector &particleVector,
const Plane& plane
)
{
SimpleParticle fittedParticle = SimpleParticle::INVALID;
Vec3 M;
double r;
const int id = particle.getID();
if (particleVector.size() > 2) {
const bool foundFit =
Sphere3D::FillInWP(
particleVector[0]->getPos(),
particleVector[1]->getPos(),
particleVector[2]->getPos(),
plane.GetO(),
plane.GetW(),
particleVector[0]->getRad(),
particleVector[1]->getRad(),
particleVector[2]->getRad(),
M,
r
);
if (foundFit) {
fittedParticle = SimpleParticle(M, r, id);
}
} else {
throw std::runtime_error("findAFit: particleVector vector contains less than 3 particles.");
}
return fittedParticle;
}
virtual SimpleParticle getFitParticle(
const SimpleParticle &particle,
const ParticleVector &neighbours,
const Plane &plane
)
{
incrGetFit();
SimpleParticle newParticle = INVALID;
if (neighbours.size() >= 3) { // 3 neighbors -> try 3 particles + plane
const SimpleParticle &Pi = *(neighbours[0]);
const double ndist=(particle.getPos()-Pi.getPos()).norm();
if (
(ndist > 0.0)
&&
(
(neighbours.size() == 3)
||
(
plane.sep(particle.getPos())
<
(particle.getPos()-neighbours[3]->getPos()).norm()-neighbours[3]->getRad()
)
)
) {
newParticle = particle;
if (ndist < Pi.getRad()) { // if Po inside Pi -> move Po to the surface of Pi
newParticle.moveTo(
Pi.getPos() + ((particle.getPos() - Pi.getPos()) * (Pi.getRad()/ndist))
);
}
newParticle = findAFit(newParticle, neighbours, plane);
}
}
if (newParticle.isValid() && !particleFits(newParticle)) {
newParticle = INVALID;
incrFailedFit();
} else if (newParticle.isValid()) {
incrSuccessfulFit();
}
return newParticle;
}
};
};
};
#endif
|
