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SIMPoisson.C
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// $Id$
//==============================================================================
//!
//! \file SIMPoisson.C
//!
//! \date May 25 2010
//!
//! \author Einar Christensen / SINTEF
//!
//! \brief Driver for NURBS-based FEM analysis of the Poisson equation.
//!
//==============================================================================
#include "PoissonSource.h"
#include "SIMPoisson.h"
#include "PoissonSolutions.h"
#include "AlgEqSystem.h"
#include "AnaSol.h"
#include "DataExporter.h"
#include "ExprFunctions.h"
#include "IFEM.h"
#include "LogStream.h"
#include "Property.h"
#include "SAM.h"
#include "SIM1D.h"
#include "SIM2D.h"
#include "SIM3D.h"
#include "SIMenums.h"
#include "SIMoptions.h"
#include "SystemMatrix.h"
#include "Utilities.h"
#ifdef HAS_LRSPLINE
#include "ASMu2D.h"
#include "Profiler.h"
#else
#include "ASMbase.h"
#endif
#include <cctype>
#include <cmath>
#include <cstdlib>
#include <cstring>
#include <ext/alloc_traits.h>
#include <fstream>
#include <iostream>
#include <map>
#include <strings.h>
#include "tinyxml2.h"
#include <utility>
namespace {
//! \brief Function returning the negated gradient of a scalar function.
class NegatedGradientFunc : public VecFunc
{
public:
//! \brief The constructor initializes the scalar function to use.
NegatedGradientFunc(const RealFunc& f) : func(f) {}
protected:
//! Evaluates function in a point.
Vec3 evaluate(const Vec3& X) const
{
Vec3 result = func.gradient(X);
result *= -1.0;
return result;
}
private:
const RealFunc& func; //!< Const reference to scalar function
};
//! \brief Analytical solution class for Poisson.
//! \details In particular override the primary to secondary solution derivation
//! as the secondary solution is inflow oriented.
class PoissonAnaSol : public AnaSol
{
public:
//! \brief Constructor initializing expression functions by parsing XML tags.
//! \param[in] elem Pointer to XML-element to extract data from
//! \param[in] scalarSol If \e true, the primary solution is a scalar field
explicit PoissonAnaSol(const tinyxml2::XMLElement* elem) :
AnaSol(elem, true)
{}
//! \brief Make sure we have a secondary solution.
//! \details If none is given, we use derivation (automatic or finite difference)
//! to obtain one.
void setupSecondarySolutions() override
{
if (!scalSol.empty() && scalSecSol.empty())
scalSecSol.push_back(new NegatedGradientFunc(*scalSol.front()));
}
};
}
template<class Dim>
SIMPoisson<Dim>::SIMPoisson (bool checkRHS, bool ds)
: SIMMultiPatchModelGen<Dim>(1,checkRHS),
prob(Dim::dimension),
robinBC(Dim::dimension, prob),
solution(&mySolVec)
{
Dim::myProblem = &prob;
aCode[0] = aCode[1] = 0;
vizRHS = false;
dualS = ds;
}
template<class Dim>
SIMPoisson<Dim>::~SIMPoisson ()
{
Dim::myProblem = nullptr; // Because it is not dynamically allocated
Dim::myInts.clear();
// To prevent the SIMbase destructor try to delete already deleted functions
if (aCode[0] > 0) Dim::myScalars.erase(aCode[0]);
if (aCode[1] > 0) Dim::myVectors.erase(aCode[1]);
}
template<class Dim>
void SIMPoisson<Dim>::clearProperties ()
{
// To prevent SIMbase::clearProperties deleting the analytical solution
if (aCode[0] > 0) Dim::myScalars.erase(aCode[0]);
if (aCode[1] > 0) Dim::myVectors.erase(aCode[1]);
aCode[0] = aCode[1] = 0;
mVec.clear();
prob.setSource(nullptr);
prob.setTraction((RealFunc*)nullptr);
prob.setTraction((VecFunc*)nullptr);
prob.clearGalerkinProjections();
prob.addExtrFunction(nullptr);
this->Dim::clearProperties();
}
template<class Dim>
size_t SIMPoisson<Dim>::getNoRHS () const
{
return dualS ? 2 : 1 + prob.getNoGalerkin();
}
template<class Dim>
bool SIMPoisson<Dim>::haveDualSol () const
{
return dualS && Dim::dualField;
}
template<class Dim>
void SIMPoisson<Dim>::registerFields (DataExporter& exporter)
{
if (Dim::opt.eig > 0) {
exporter.registerField("eigenmodes", "eigenmodes",
DataExporter::SIM, DataExporter::EIGENMODES);
exporter.setFieldValue("eigenmodes", this, &modes);
}
else {
int results = DataExporter::PRIMARY;
if (!Dim::opt.pSolOnly)
results |= DataExporter::SECONDARY;
if (Dim::opt.saveNorms)
results |= DataExporter::NORMS;
exporter.registerField("u", "solution", DataExporter::SIM, results);
exporter.setFieldValue("u", this, solution,
Dim::opt.project.empty() ? nullptr : &myProj,
Dim::opt.saveNorms ? &myNorm : nullptr);
}
}
template<class Dim>
void SIMPoisson<Dim>::setASCIIfile (const char* filename)
{
const char* end = strrchr(filename,'.');
if (end)
asciiFile.assign(filename,end);
else
asciiFile.assign(filename);
}
template<class Dim>
bool SIMPoisson<Dim>::saveModel (char* fileName, int& geoBlk, int& nBlock)
{
if (!asciiFile.empty())
{
// Write (possibly refined) model to g2-file
std::ofstream osg(asciiFile+".g2");
osg.precision(18);
IFEM::cout <<"\nWriting updated g2-file "<< asciiFile+".g2" << std::endl;
this->dumpGeometry(osg);
}
if (Dim::opt.format < 0)
return true; // No VTF-output
// Write geometry
if (!this->writeGlvG(geoBlk,fileName))
return false;
// Write boundary tractions, if any
if (!this->writeGlvT(1,geoBlk,nBlock))
return false;
// Write Dirichlet boundary conditions
return this->writeGlvBC(nBlock);
}
template<class Dim>
bool SIMPoisson<Dim>::solveStep (TimeStep&)
{
if (!this->setMode(Dim::opt.eig == 0 ? SIM::STATIC : SIM::VIBRATION))
return false;
if (!this->initSystem(Dim::opt.solver, 1, Dim::opt.eig == 0 ? 1 : 0))
return false;
this->setQuadratureRule(Dim::opt.nGauss[0],true);
if (!this->assembleSystem())
return false;
if (Dim::opt.eig > 0) // Eigenvalue analysis (free vibration)
return this->systemModes(modes);
else if (vizRHS)
this->extractLoadVec(myLoad);
if (!this->solveSystem(mySolVec,1))
return false;
if (!Dim::opt.project.empty())
{
this->setMode(SIM::RECOVERY);
// Project the secondary solution onto the splines basis
size_t j = 0;
for (const SIMoptions::ProjectionMap::value_type& pit : Dim::opt.project)
if (!this->project(myProj[j++],mySolVec,pit.first))
return false;
IFEM::cout << std::endl;
}
// Evaluate solution norms
Vectors gNorm;
this->setMode(SIM::NORMS);
this->setQuadratureRule(Dim::opt.nGauss[1]);
if (!this->solutionNorms(mySolVec,myProj,myNorm,gNorm))
return false;
// Print global norm summary to console
this->printNorms(gNorm);
if (this->hasResultPoints())
{
// Print point-wise result quantities
this->setMode(SIM::RECOVERY);
this->dumpResults(mySolVec,0.0,IFEM::cout,true);
if (!myProj.empty())
this->dumpVector(myProj.front(),nullptr,IFEM::cout);
}
return true;
}
template<class Dim>
bool SIMPoisson<Dim>::saveStep (TimeStep&, int& nBlock)
{
if (!asciiFile.empty())
{
// Write solution (control point values) to ASCII files
std::ofstream osd(asciiFile+".sol");
osd.precision(18);
IFEM::cout <<"\nWriting primary solution (temperature field) to file "
<< asciiFile+".sol" << std::endl;
utl::LogStream log(osd);
this->dumpPrimSol(mySolVec,log,false);
std::ofstream oss(asciiFile+".sec");
oss.precision(18);
IFEM::cout <<"\nWriting all solutions (heat flux etc) to file "
<< asciiFile+".sec" << std::endl;
utl::LogStream log2(oss);
this->dumpSolution(mySolVec,log2);
}
if (Dim::opt.format < 0)
return true;
// Write load vector to VTF-file
if (!this->writeGlvV(myLoad,"Load vector",1,nBlock))
return false;
// Write solution fields to VTF-file
if (!this->writeGlvS(mySolVec,1,nBlock))
return false;
size_t pos = 0;
for (const Kappa& f : mVec)
if (f.func && !this->writeGlvF(*f.func, ("kappa" + std::to_string(++pos)).c_str(), 1, nBlock))
return false;
// Write projected solution fields to VTF-file
size_t i = 0;
int iBlk = 100, iGrad = -1;
std::string grdName;
std::vector<std::string> prefix(Dim::opt.project.size());
for (const SIMoptions::ProjectionMap::value_type& pit : Dim::opt.project)
if (i >= myProj.size())
break;
else if (!this->writeGlvP(myProj[i],1,nBlock,iBlk,pit.second.c_str()))
return false;
else
{
iBlk += 10;
prefix[i++] = pit.second.c_str();
if (iGrad < 0 || pit.first == SIMoptions::GLOBAL)
{
iGrad = i-1;
grdName = pit.second + " q";
}
}
// Write the projected solution gradient vector (heat flux) to VTF-file
if (iGrad >= 0)
if (!this->writeGlvV(myProj[iGrad],grdName.c_str(),1,nBlock,110,Dim::nsd))
return false;
// Write eigenmodes
bool isFreq = Dim::opt.eig==3 || Dim::opt.eig==4 || Dim::opt.eig==6;
for (i = 0; i < modes.size(); i++)
if (!this->writeGlvM(modes[i],isFreq,nBlock))
return false;
// Write element norms
if (!this->writeGlvN(myNorm,1,nBlock,prefix))
return false;
return this->writeGlvStep(1,0.0,1);
}
template<class Dim>
bool SIMPoisson<Dim>::solveSystem (Vector& solution, int printSol,
double* rCond, const char* compName,
size_t idxRHS)
{
if (!this->Dim::solveSystem(solution,printSol,rCond,compName,idxRHS))
return false;
else if (idxRHS > 0 || !this->haveReactions() || prob.extEner != 'R')
return true;
// Assemble the reaction forces. Strictly, we only need to assemble those
// elements that have nodes on the Dirichlet boundaries, but...
return this->assembleForces({solution},0.0,&myReact);
}
template<class Dim>
void SIMPoisson<Dim>::printNormGroup (const Vector& gNorm, const Vector& fNorm,
const std::string& name) const
{
IFEM::cout <<"\n>>> Error estimates based on "<< name <<" <<<";
if (name == "Pure residuals")
IFEM::cout <<"\nResidual norm |u|_res = |f+nabla^2 u|: "<< gNorm(2);
else {
const char* uRef = this->haveAnaSol() ? "|u|) " : "|u^r|)";
double Rel = 100.0/(this->haveAnaSol() ? fNorm(3) : gNorm(1));
IFEM::cout <<"\nEnergy norm |u^r| = a(u^r,u^r)^0.5 : "<< gNorm(1)
<<"\nError norm a(e,e)^0.5, e=u^r-u^h : "<< gNorm(2)
<<"\n- relative error (% of "<< uRef <<" : "<< gNorm(2)*Rel
<<"\nResidual error (r(u^r) + J(u^r))^0.5 : "<< gNorm(3)
<<"\n- relative error (% of "<< uRef <<" : "<< gNorm(3)*Rel;
}
if (this->haveAnaSol())
{
if (gNorm.size() > 3 && name != "Pure residuals") {
double Rel = 100.0 / fNorm(3);
IFEM::cout <<"\nExact error a(e,e)^0.5, e=u-u^r : "<< gNorm(4)
<<"\n- relative error (% of |u|) : "<< gNorm(4)*Rel;
}
if (fNorm.size() > 3 && gNorm.size() > 3)
IFEM::cout <<"\nEffectivity index, theta^* : "
<< gNorm(2)/fNorm(4)
<<"\nEffectivity index, theta^EX : "
<< (gNorm(2)+gNorm(4))/fNorm(4)
<<"\nEffectivity index, theta^RES : "
<< (gNorm(2)+gNorm(3))/fNorm(4);
}
IFEM::cout << std::endl;
}
template<class Dim>
bool SIMPoisson<Dim>::preprocessBeforeAsmInit (int& nnod)
{
if (constrainIntegratedSolution) {
++nnod;
for (int p = 1; p <= this->getNoPatches(); ++p) {
int lp = this->getLocalPatchIndex(p);
if (lp > 0)
this->getPatch(lp)->addGlobalLagrangeMultipliers({nnod}, 1);
}
}
return true;
}
template<class Dim>
void SIMPoisson<Dim>::preprocessA ()
{
if (Dim::dualField)
prob.setDualRHS(Dim::dualField);
myProj.resize(Dim::opt.project.size());
if (sourceFromAnaSol) {
int code = -1; // Reserve negative code(s) for the source term function
while (this->myScalars.find(code) != this->myScalars.end())
--code;
this->myScalars[code] = new PoissonAnaSolSource(*Dim::mySol, prob);
prob.setSource(this->myScalars[code]);
}
if (!Dim::mySol) return;
Dim::myInts.insert(std::make_pair(0,Dim::myProblem));
// Define analytical boundary condition fields
PropertyVec::iterator p;
for (p = Dim::myProps.begin(); p != Dim::myProps.end(); ++p)
if (p->pcode == Property::DIRICHLET_ANASOL)
{
if (!Dim::mySol->getScalarSol())
p->pcode = Property::UNDEFINED;
else if (aCode[0] == abs(p->pindx))
p->pcode = Property::DIRICHLET_INHOM;
else if (aCode[0] == 0)
{
aCode[0] = abs(p->pindx);
Dim::myScalars[aCode[0]] = Dim::mySol->getScalarSol();
p->pcode = Property::DIRICHLET_INHOM;
}
else
p->pcode = Property::UNDEFINED;
}
else if (p->pcode == Property::NEUMANN_ANASOL)
{
if (!Dim::mySol->getScalarSecSol())
p->pcode = Property::UNDEFINED;
else if (aCode[1] == p->pindx)
p->pcode = Property::NEUMANN;
else if (aCode[1] == 0)
{
aCode[1] = p->pindx;
Dim::myVectors[aCode[1]] = Dim::mySol->getScalarSecSol();
p->pcode = Property::NEUMANN;
}
else
p->pcode = Property::UNDEFINED;
} else if (p->pcode == Property::ROBIN)
if (Dim::myInts.find(p->pindx) == Dim::myInts.end())
Dim::myInts.insert(std::make_pair(p->pindx,&robinBC));
}
template<class Dim>
bool SIMPoisson<Dim>::preprocessB ()
{
// Check if the model has constraints.
// If not, we can calculate external energy also without reaction forces.
if (this->getNoConstraints() == 0 && !prob.extEner)
prob.extEner = 'y';
return true;
}
template<class Dim>
bool SIMPoisson<Dim>::parse (char* keyWord, std::istream& is)
{
if (this->parseDimSpecific(keyWord,is))
return true;
else if (!strncasecmp(keyWord,"ISOTROPIC",9))
{
char* cline = 0;
int nmat = atoi(keyWord+10);
std::cout <<"\nNumber of isotropic materials: "<< nmat << std::endl;
for (int i = 0; i < nmat && (cline = utl::readLine(is)); i++)
{
int code = atoi(strtok(cline," "));
double kappa = atof(strtok(nullptr," "));
if (code == 0)
prob.setMaterial(kappa);
else
this->setPropertyType(code,Property::MATERIAL,mVec.size());
mVec.push_back(Kappa{kappa, nullptr});
std::cout <<"\tMaterial code "<< code <<": "<< kappa << std::endl;
}
}
else
return this->Dim::parse(keyWord,is);
return true;
}
template<class Dim>
bool SIMPoisson<Dim>::parse (const tinyxml2::XMLElement* elem)
{
if (!strcasecmp(elem->Value(),"postprocessing"))
prob.parse(elem->FirstChildElement("projection"));
if (strcasecmp(elem->Value(),"poisson"))
return this->Dim::parse(elem);
bool result = true;
const tinyxml2::XMLElement* child = elem->FirstChildElement();
for (; child; child = child->NextSiblingElement())
if (this->parseDimSpecific(child))
continue;
else if (!strcasecmp(child->Value(),"isotropic")) {
int code = this->parseMaterialSet(child,mVec.size());
Kappa kappa{1000.0, nullptr};
utl::getAttribute(child,"kappa",kappa.constant);
if (code == 0)
prob.setMaterial(kappa.constant);
mVec.push_back(kappa);
std::cout <<"\tMaterial code "<< code <<": "<< kappa.constant << std::endl;
}
else if (!strcasecmp(child->Value(),"propertymaterial")) {
int code = this->parseMaterialSet(child,mVec.size());
tprops.parse(child);
if (tprops.hasProperty("kappa")) {
Kappa kappa;
kappa.func.reset(new PropertyFunc("kappa", tprops));
mVec.push_back(kappa);
if (code == 0)
prob.setMaterial(mVec.back().func.get());
std::cout <<"\tMaterial code "<< code <<": property"<< std::endl;
}
}
else if (!strcasecmp(child->Value(),"constrain_integrated_solution")) {
this->constrainIntegratedSolution = true;
prob.constrainIntgSol(true);
const char* val = utl::getValue(child,"constrain_integrated_solution");
IFEM::cout << "\tConstraining integrated solution";
if (val) {
// Scale by NoProcs because contribution is added once for each process
integrated_solution = atof(val) / Dim::adm.getNoProcs();
IFEM::cout << " to " << val;
}
IFEM::cout << std::endl;
}
else if (!strcasecmp(child->Value(),"reactions"))
prob.extEner = 'R';
else if (!strcasecmp(child->Value(),"dualfield"))
prob.addExtrFunction(this->parseDualTag(child));
else if (!prob.parse(child))
result &= this->Dim::parse(child);
return result;
}
template<class Dim>
bool SIMPoisson<Dim>::initMaterial (size_t propInd)
{
if (propInd >= mVec.size()) return false;
if (mVec[propInd].func)
prob.setMaterial(mVec[propInd].func.get());
else
prob.setMaterial(mVec[propInd].constant);
return true;
}
template<class Dim>
bool SIMPoisson<Dim>::initNeumann (size_t propInd)
{
typename Dim::SclFuncMap::const_iterator sit = Dim::myScalars.find(propInd);
typename Dim::VecFuncMap::const_iterator vit = Dim::myVectors.find(propInd);
if (sit != Dim::myScalars.end()) {
prob.setTraction(sit->second);
robinBC.setFlux(sit->second);
} else if (vit != Dim::myVectors.end()) {
prob.setTraction(vit->second);
robinBC.setAlpha(vit->second);
} else
return false;
return true;
}
template<class Dim>
bool SIMPoisson<Dim>::
assembleDiscreteTerms(const IntegrandBase* p, const TimeDomain&)
{
if (!constrainIntegratedSolution || p != &prob)
return true;
else if (!Dim::mySam || !Dim::myEqSys)
return false;
SystemVector* v = Dim::myEqSys->getVector(0);
if (!v) return false;
int node = Dim::mySam->getNoNodes();
int eq = Dim::mySam->getEquation(node,1);
v->getPtr()[eq-1] = integrated_solution;
return true;
}
//! \brief Template specialization - 1D specific input parsing.
template<>
bool SIMPoisson<SIM1D>::parseDimSpecific (char* keyWord, std::istream& is)
{
char* cline;
if (!strncasecmp(keyWord,"SOURCE",6))
{
int code = -1; // Reserve negative code(s) for the source term function
while (myScalars.find(code) != myScalars.end()) --code;
cline = strtok(keyWord+6," ");
if (!strncasecmp(cline,"LINE",4))
{
double L = atof(strtok(nullptr," "));
std::cout <<"\nHeat source function: Line L="<< L << std::endl;
myScalars[code] = new PoissonLineSource(L);
}
else if (!strncasecmp(cline,"EXPRESSION",10))
{
cline = strtok(nullptr," ");
std::cout <<"\nHeat source function: "<< cline << std::endl;
myScalars[code] = new EvalFunction(cline);
}
else
{
std::cerr <<" ** SIMPoisson1D::parse: Invalid source function "
<< cline <<" (ignored)"<< std::endl;
return true;
}
prob.setSource(myScalars[code]);
}
else if (!strncasecmp(keyWord,"ANASOL",6))
{
int code = -1;
cline = strtok(keyWord+6," ");
if (!strncasecmp(cline,"LINE",4))
{
double L = atof(strtok(nullptr," "));
std::cout <<"\nAnalytical solution: Line L="<< L << std::endl;
if (!mySol)
mySol = new AnaSol(nullptr,new PoissonLine(L));
}
else if (!strncasecmp(cline,"EXPRESSION",10))
{
std::cout <<"\nAnalytical solution: Expression"<< std::endl;
int lines = (cline = strtok(nullptr," ")) ? atoi(cline) : 0;
code = (cline = strtok(nullptr," ")) ? atoi(cline) : 0;
if (!mySol)
mySol = new AnaSol(is,lines);
}
else
{
std::cerr <<" ** SIMPoisson1D::parse: Invalid analytical solution "
<< cline <<" (ignored)"<< std::endl;
return true;
}
// Define the analytical boundary traction field
if (code == -1)
code = (cline = strtok(nullptr," ")) ? atoi(cline) : 0;
if (code > 0 && mySol->getScalarSecSol())
{
this->setPropertyType(code,Property::NEUMANN);
myVectors[code] = mySol->getScalarSecSol();
aCode[1] = code;
}
}
else
return false;
return true;
}
//! \brief Template specialization - 1D specific input parsing.
template<>
bool SIMPoisson<SIM1D>::parseDimSpecific (const tinyxml2::XMLElement* child)
{
if (!strcasecmp(child->Value(),"source")) {
int code = -1; // Reserve negative code(s) for the source term function
while (myScalars.find(code) != myScalars.end()) --code;
std::string type;
utl::getAttribute(child,"type",type,true);
if (type == "line") {
double L = 0.0;
utl::getAttribute(child,"L",L);
std::cout <<"\tHeat source function: Line L="<< L << std::endl;
myScalars[code] = new PoissonLineSource(L);
}
else if (type == "expression" && child->FirstChild()) {
std::cout <<"\tHeat source function: "
<< child->FirstChild()->Value() << std::endl;
myScalars[code] = new EvalFunction(child->FirstChild()->Value());
}
else if (type == "anasol") {
sourceFromAnaSol = true;
IFEM::cout << "\n\tSource function: derived from analytical solution\n";
}
else
{
std::cerr <<" ** SIMPoisson1D::parse: Invalid source function "
<< type <<" (ignored)"<< std::endl;
return false;
}
prob.setSource(myScalars[code]);
}
else if (!strcasecmp(child->Value(),"anasol")) {
std::string type;
utl::getAttribute(child,"type",type,true);
if (type == "line") {
double L = 0.0;
utl::getAttribute(child,"L",L);
std::cout <<"\tAnalytical solution: Line L="<< L << std::endl;
if (!mySol)
mySol = new AnaSol(nullptr,new PoissonLine(L));
}
else if (type == "expression" || type == "fields") {
type[0] = toupper(type[0]);
std::cout <<"\tAnalytical solution: "<< type << std::endl;
if (!mySol)
mySol = new PoissonAnaSol(child);
}
else
std::cerr <<" ** SIMPoisson1D::parse: Invalid analytical solution "
<< type <<" (ignored)"<< std::endl;
// Define the analytical boundary traction field
int code;
if (utl::getAttribute(child,"code",code))
if (code > 0 && mySol && mySol->getScalarSecSol())
{
this->setPropertyType(code,Property::NEUMANN);
myVectors[code] = mySol->getScalarSecSol();
aCode[1] = code;
}
}
else
return false;
return true;
}
//! \brief Template specialization - 2D specific input parsing.
template<>
bool SIMPoisson<SIM2D>::parseDimSpecific (char* keyWord, std::istream& is)
{
char* cline;
// Test code, move to SIM2D maybe?)
if (!strncasecmp(keyWord,"LRREFINE",8))
{
#ifdef HAS_LRSPLINE
ASMu2D* patch = dynamic_cast<ASMu2D*>(myModel.front());
if (patch)
{
cline = strtok(keyWord+8," ");
if (!strncasecmp(cline,"UNIFORM",7))
{
PROFILE("LR refinement");
int nRef = atoi(strtok(nullptr," "));
std::cout <<"\nLR refinement UNIFORM : "<< nRef << std::endl;
patch->uniformRefine(nRef);
}
else if (!strncasecmp(cline,"CORNER",6))
{
PROFILE("LR refinement");
int nRef = atoi(strtok(nullptr," "));
std::cout <<"\nLR refinement CORNER : "<< nRef << std::endl;
patch->cornerRefine(nRef);
}
else if (!strncasecmp(cline,"DIAGONAL",8))
{
PROFILE("LR refinement");
int nRef = atoi(strtok(nullptr," "));
std::cout <<"\nLR refinement DIAGONAL : "<< nRef << std::endl;
patch->diagonalRefine(nRef);
}
}
#endif
}
else if (!strncasecmp(keyWord,"SOURCE",6))
{
int code = -1; // Reserve negative code(s) for the source term function
while (myScalars.find(code) != myScalars.end()) --code;
cline = strtok(keyWord+6," ");
if (!strncasecmp(cline,"SQUARE",6))
{
double L = atof(strtok(nullptr," "));
std::cout <<"\nHeat source function: Square L="<< L << std::endl;
myScalars[code] = new Square2DHeat(L);
}
else if (!strncasecmp(cline,"SINUSSQUARE",11))
{
std::cout <<"\nHeat source function: SquareSinus"<< std::endl;
myScalars[code] = new SquareSinusSource();
}
else if (!strncasecmp(cline,"INTERIORLAYER",13))
{
std::cout <<"\nHeat source function: InteriorLayer"<< std::endl;
myScalars[code] = new PoissonInteriorLayerSource();
}
else if (!strncasecmp(cline,"EXPRESSION",10))
{
cline = strtok(nullptr," ");
std::cout <<"\nHeat source function: "<< cline << std::endl;
myScalars[code] = new EvalFunction(cline);
}
else
{
std::cerr <<" ** SIMPoisson2D::parse: Invalid source function "
<< cline <<" (ignored)"<< std::endl;
return true;
}
prob.setSource(myScalars[code]);
}
else if (!strncasecmp(keyWord,"ANASOL",6))
{
int code = -1;
cline = strtok(keyWord+6," ");
if (!strncasecmp(cline,"SQUARE",6))
{
double L = atof(strtok(nullptr," "));
std::cout <<"\nAnalytical solution: Square L="<< L << std::endl;
if (!mySol)
mySol = new AnaSol(nullptr,new Square2D(L));
}
else if (!strncasecmp(cline,"LSHAPE",6))
{
std::cout <<"\nAnalytical solution: Lshape"<< std::endl;
if (!mySol)
mySol = new AnaSol(nullptr,new LshapePoisson());
}
else if (!strncasecmp(cline,"SINUSSQUARE",11))
{
std::cout <<"\nAnalytical solution: SquareSinus"<< std::endl;
if (!mySol)
mySol = new AnaSol(nullptr,new SquareSinus());
}
else if (!strncasecmp(cline,"INTERIORLAYER",13))
{
std::cout <<"\nAnalytical solution: InteriorLayer"<< std::endl;
if (!mySol)
mySol = new AnaSol(new PoissonInteriorLayerSol(),
new PoissonInteriorLayer());
// Define the Dirichlet boundary condition from the analytical solution
code = (cline = strtok(nullptr," ")) ? atoi(cline) : 0;
if (code < 1)
{
std::cerr <<" *** SIMPoisson2D::parse: Specify code > 0 for the"
<<" inhomogenous DIRICHLET boundary on InteriorLayer\n";
return false;
}
this->setPropertyType(code,Property::DIRICHLET_INHOM);
myScalars[code] = mySol->getScalarSol();
aCode[0] = code;
code = 0; // Avoid definition of Neumann property
}
else if (!strncasecmp(cline,"EXPRESSION",10))
{
std::cout <<"\nAnalytical solution: Expression"<< std::endl;
int lines = (cline = strtok(nullptr," ")) ? atoi(cline) : 0;
code = (cline = strtok(nullptr," ")) ? atoi(cline) : 0;
if (!mySol)
mySol = new AnaSol(is,lines);
}
else
{
std::cerr <<" ** SIMPoisson2D::parse: Invalid analytical solution "
<< cline <<" (ignored)"<< std::endl;
return true;
}
// Define the analytical boundary traction field
if (code == -1)
code = (cline = strtok(nullptr," ")) ? atoi(cline) : 0;
if (code > 0 && mySol->getScalarSecSol())
{
this->setPropertyType(code,Property::NEUMANN);
myVectors[code] = mySol->getScalarSecSol();
aCode[1] = code;
}
}
else
return false;
return true;
}
//! \brief Template specialization - 2D specific input parsing.
template<>
bool SIMPoisson<SIM2D>::parseDimSpecific (const tinyxml2::XMLElement* child)
{
if (!strcasecmp(child->Value(),"source")) {
int code = -1; // Reserve negative code(s) for the source term function
while (myScalars.find(code) != myScalars.end()) --code;
std::string type;
utl::getAttribute(child,"type",type,true);
if (type == "square") {
double L = 0.0;
utl::getAttribute(child,"L",L);
std::cout <<"\tHeat source function: Square L="<< L << std::endl;
myScalars[code] = new Square2DHeat(L);
}
else if (type == "sinussquare") {
std::cout <<"\tHeat source function: SquareSinus"<< std::endl;
myScalars[code] = new SquareSinusSource();
}
else if (type == "interiorlayer") {
double s = 60;
utl::getAttribute(child,"slope",s);
std::cout <<"\tHeat source function: InteriorLayer, slope="<< s
<< std::endl;
myScalars[code] = new PoissonInteriorLayerSource(s);
}
else if (type == "expression" && child->FirstChild()) {
std::cout <<"\tHeat source function: "
<< child->FirstChild()->Value() << std::endl;
myScalars[code] = new EvalFunction(child->FirstChild()->Value());
}
else if (type == "anasol") {
sourceFromAnaSol = true;
IFEM::cout << "\n\tSource function: derived from analytical solution\n";
}
else
{
std::cerr <<" ** SIMPoisson2D::parse: Invalid source function "
<< type <<" (ignored)"<< std::endl;
return true;
}
prob.setSource(myScalars[code]);
}
else if (!strcasecmp(child->Value(),"anasol")) {
int code = 0;
std::string type;
utl::getAttribute(child,"type",type,true);
if (type == "square") {
double L = 0.0;
utl::getAttribute(child,"L",L);
std::cout <<"\tAnalytical solution: Square L="<< L << std::endl;
if (!mySol)
mySol = new AnaSol(nullptr,new Square2D(L));
}
else if (type == "lshape") {
std::cout <<"\tAnalytical solution: Lshape"<< std::endl;
if (!mySol)
mySol = new AnaSol(nullptr,new LshapePoisson());
}
else if (type == "sinussquare") {
std::cout <<"\tAnalytical solution: SquareSinus"<< std::endl;
if (!mySol)
mySol = new AnaSol(nullptr,new SquareSinus());