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openems.cpp
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openems.cpp
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/*
* Copyright (C) 2010-2015 Thorsten Liebig ([email protected])
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "openems.h"
#include <iomanip>
#include <iostream>
#include <fstream>
#include "tools/array_ops.h"
#include "tools/useful.h"
#include "FDTD/operator_cylinder.h"
#include "FDTD/operator_cylindermultigrid.h"
#include "FDTD/engine_multithread.h"
#include "FDTD/operator_multithread.h"
#include "FDTD/extensions/operator_ext_excitation.h"
#include "FDTD/extensions/operator_ext_tfsf.h"
#include "FDTD/extensions/operator_ext_mur_abc.h"
#include "FDTD/extensions/operator_ext_upml.h"
#include "FDTD/extensions/operator_ext_lorentzmaterial.h"
#include "FDTD/extensions/operator_ext_lumpedRLC.h"
#include "FDTD/extensions/operator_ext_conductingsheet.h"
#include "FDTD/extensions/operator_ext_steadystate.h"
#include "FDTD/extensions/engine_ext_steadystate.h"
#include "FDTD/engine_interface_fdtd.h"
#include "FDTD/engine_interface_cylindrical_fdtd.h"
#include "Common/processvoltage.h"
#include "Common/processcurrent.h"
#include "Common/processfieldprobe.h"
#include "Common/processmodematch.h"
#include "Common/processfields_td.h"
#include "Common/processfields_fd.h"
#include "Common/processfields_sar.h"
#include <hdf5.h> // only for H5get_libversion()
#include <boost/version.hpp> // only for BOOST_LIB_VERSION
#include <vtkVersion.h>
//external libs
#include "tinyxml.h"
#include "ContinuousStructure.h"
#include "CSPropProbeBox.h"
#include "CSPrimBox.h"
#include "CSPropDumpBox.h"
using namespace std;
double CalcDiffTime(timeval t1, timeval t2)
{
double s_diff = t1.tv_sec - t2.tv_sec;
s_diff += (t1.tv_usec-t2.tv_usec)*1e-6;
return s_diff;
}
openEMS::openEMS()
{
setlocale(LC_NUMERIC, "en_US.UTF-8");
FDTD_Op=NULL;
FDTD_Eng=NULL;
Eng_Ext_SSD=NULL;
m_CSX=NULL;
PA=NULL;
CylinderCoords = false;
Enable_Dumps = true;
DebugMat = false;
DebugOp = false;
m_debugCSX = false;
m_debugBox = m_debugPEC = m_no_simulation = false;
m_DumpStats = false;
endCrit = 1e-6;
m_OverSampling = 4;
m_CellConstantMaterial=false;
m_engine = EngineType_Multithreaded; //default engine type
m_engine_numThreads = 0;
m_Abort = false;
m_Exc = 0;
m_TS_method=3;
m_TS=0;
m_TS_fac=1.0;
m_maxTime=0.0;
for (int n=0;n<6;++n)
{
m_BC_type[n] = 0;
m_PML_size[n] = 8;
m_Mur_v_ph[n] = 0;
}
}
openEMS::~openEMS()
{
Reset();
}
void openEMS::Reset()
{
if (PA) PA->DeleteAll();
delete PA;
PA=0;
delete FDTD_Eng;
FDTD_Eng=0;
delete FDTD_Op;
FDTD_Op=0;
delete m_CSX;
m_CSX=0;
delete m_Exc;
m_Exc=0;
}
void openEMS::showUsage()
{
cout << " Usage: openEMS <FDTD_XML_FILE> [<options>...]" << endl << endl;
cout << " <options>" << endl;
cout << "\t--disable-dumps\t\tDisable all field dumps for faster simulation" << endl;
cout << "\t--debug-material\tDump material distribution to a vtk file for debugging" << endl;
cout << "\t--debug-PEC\t\tDump metal distribution to a vtk file for debugging" << endl;
cout << "\t--debug-operator\tDump operator to vtk file for debugging" << endl;
cout << "\t--debug-boxes\t\tDump e.g. probe boxes to vtk file for debugging" << endl;
cout << "\t--debug-CSX\t\tWrite CSX geometry file to debugCSX.xml" << endl;
cout << "\t--engine=<type>\t\tChoose engine type" << endl;
cout << "\t\t--engine=fastest\t\tfastest available engine (default)" << endl;
cout << "\t\t--engine=basic\t\t\tbasic FDTD engine" << endl;
cout << "\t\t--engine=sse\t\t\tengine using sse vector extensions" << endl;
cout << "\t\t--engine=sse-compressed\t\tengine using compressed operator + sse vector extensions" << endl;
#ifdef MPI_SUPPORT
cout << "\t\t--engine=MPI\t\t\tengine using compressed operator + sse vector extensions + MPI parallel processing" << endl;
cout << "\t\t--engine=multithreaded\t\tengine using compressed operator + sse vector extensions + MPI + multithreading" << endl;
#else
cout << "\t\t--engine=multithreaded\t\tengine using compressed operator + sse vector extensions + multithreading" << endl;
#endif
cout << "\t--numThreads=<n>\tForce use n threads for multithreaded engine (needs: --engine=multithreaded)" << endl;
cout << "\t--no-simulation\t\tonly run preprocessing; do not simulate" << endl;
cout << "\t--dump-statistics\tdump simulation statistics to '" << __OPENEMS_RUN_STAT_FILE__ << "' and '" << __OPENEMS_STAT_FILE__ << "'" << endl;
cout << "\n\t Additional global arguments " << endl;
g_settings.ShowArguments(cout,"\t");
cout << endl;
}
//! \brief processes a command line argument
//! \return true if argument is known
//! \return false if argument is unknown
bool openEMS::parseCommandLineArgument( const char *argv )
{
if (!argv)
return false;
if (strcmp(argv,"--disable-dumps")==0)
{
cout << "openEMS - disabling all field dumps" << endl;
SetEnableDumps(false);
return true;
}
else if (strcmp(argv,"--debug-material")==0)
{
cout << "openEMS - dumping material to 'material_dump.vtk'" << endl;
DebugMaterial();
return true;
}
else if (strcmp(argv,"--debug-operator")==0)
{
cout << "openEMS - dumping operator to 'operator_dump.vtk'" << endl;
DebugOperator();
return true;
}
else if (strcmp(argv,"--debug-boxes")==0)
{
cout << "openEMS - dumping boxes to 'box_dump*.vtk'" << endl;
DebugBox();
return true;
}
else if (strcmp(argv,"--debug-PEC")==0)
{
cout << "openEMS - dumping PEC info to 'PEC_dump.vtk'" << endl;
DebugPEC();
return true;
}
else if (strcmp(argv,"--debug-CSX")==0)
{
cout << "openEMS - dumping CSX geometry to 'debugCSX.xml'" << endl;
DebugCSX();
return true;
}
else if (strcmp(argv,"--engine=basic")==0)
{
cout << "openEMS - enabled basic engine" << endl;
m_engine = EngineType_Basic;
return true;
}
else if (strcmp(argv,"--engine=sse")==0)
{
cout << "openEMS - enabled sse engine" << endl;
m_engine = EngineType_SSE;
return true;
}
else if (strcmp(argv,"--engine=sse-compressed")==0)
{
cout << "openEMS - enabled compressed sse engine" << endl;
m_engine = EngineType_SSE_Compressed;
return true;
}
else if (strcmp(argv,"--engine=multithreaded")==0)
{
cout << "openEMS - enabled multithreading" << endl;
m_engine = EngineType_Multithreaded;
return true;
}
else if (strncmp(argv,"--numThreads=",13)==0)
{
this->SetNumberOfThreads(atoi(argv+13));
cout << "openEMS - fixed number of threads: " << m_engine_numThreads << endl;
return true;
}
else if (strcmp(argv,"--engine=fastest")==0)
{
cout << "openEMS - enabled multithreading engine" << endl;
m_engine = EngineType_Multithreaded;
return true;
}
else if (strcmp(argv,"--no-simulation")==0)
{
cout << "openEMS - disabling simulation => preprocessing only" << endl;
m_no_simulation = true;
return true;
}
else if (strcmp(argv,"--dump-statistics")==0)
{
cout << "openEMS - dump simulation statistics to '" << __OPENEMS_RUN_STAT_FILE__ << "' and '" << __OPENEMS_STAT_FILE__ << "'" << endl;
m_DumpStats = true;
return true;
}
return false;
}
void openEMS::SetNumberOfThreads(int val)
{
if ((val<0) || (val>boost::thread::hardware_concurrency()))
val = boost::thread::hardware_concurrency();
m_engine_numThreads = val;
}
string openEMS::GetExtLibsInfo(string prefix)
{
stringstream str;
str << prefix << "Used external libraries:" << endl;
str << prefix << "\t" << ContinuousStructure::GetInfoLine(true) << endl;
// libhdf5
unsigned int major, minor, release;
if (H5get_libversion( &major, &minor, &release ) >= 0)
{
str << prefix << "\t" << "hdf5 -- Version: " << major << '.' << minor << '.' << release << endl;
str << prefix << "\t" << " compiled against: " H5_VERS_INFO << endl;
}
// tinyxml
str << prefix << "\t" << "tinyxml -- compiled against: " << TIXML_MAJOR_VERSION << '.' << TIXML_MINOR_VERSION << '.' << TIXML_PATCH_VERSION << endl;
// fparser
str << prefix << "\t" << "fparser" << endl;
// boost
str << prefix << "\t" << "boost -- compiled against: " << BOOST_LIB_VERSION << endl;
//vtk
str << prefix << "\t" << "vtk -- Version: " << vtkVersion::GetVTKMajorVersion() << "." << vtkVersion::GetVTKMinorVersion() << "." << vtkVersion::GetVTKBuildVersion() << endl;
str << prefix << "\t" << " compiled against: " << VTK_VERSION << endl;
return str.str();
}
void openEMS::WelcomeScreen()
{
#if defined(_LP64) || defined(_WIN64)
string bits = "64bit";
#else
string bits = "32bit";
#endif
cout << " ---------------------------------------------------------------------- " << endl;
cout << " | openEMS " << bits << " -- version " << GIT_VERSION << endl;
cout << " | (C) 2010-2023 Thorsten Liebig <[email protected]> GPL license" << endl;
cout << " ---------------------------------------------------------------------- " << endl;
cout << openEMS::GetExtLibsInfo("\t") << endl;
}
bool openEMS::SetupBoundaryConditions()
{
FDTD_Op->SetBoundaryCondition(m_BC_type); //operator only knows about PEC and PMC, everything else is defined by extensions (see below)
/**************************** create all operator/engine extensions here !!!! **********************************/
for (int n=0; n<6; ++n)
{
FDTD_Op->SetBCSize(n, 0);
if (m_BC_type[n]==2) //Mur-ABC
{
FDTD_Op->SetBCSize(n, 1);
Operator_Ext_Mur_ABC* op_ext_mur = new Operator_Ext_Mur_ABC(FDTD_Op);
op_ext_mur->SetDirection(n/2,n%2);
if (m_Mur_v_ph[n]>0)
op_ext_mur->SetPhaseVelocity(m_Mur_v_ph[n]);
FDTD_Op->AddExtension(op_ext_mur);
}
if (m_BC_type[n]==3)
FDTD_Op->SetBCSize(n, m_PML_size[n]);
}
//create the upml
Operator_Ext_UPML::Create_UPML(FDTD_Op, m_BC_type, m_PML_size, string());
return true;
}
Engine_Interface_FDTD* openEMS::NewEngineInterface(int multigridlevel)
{
Operator_CylinderMultiGrid* op_cyl_mg = dynamic_cast<Operator_CylinderMultiGrid*>(FDTD_Op);
while (op_cyl_mg && multigridlevel>0)
{
int mgl = op_cyl_mg->GetMultiGridLevel();
if (mgl==multigridlevel)
{
if (g_settings.GetVerboseLevel()>0)
cout << __func__ << ": Operator with requested multi-grid level found." << endl;
return new Engine_Interface_Cylindrical_FDTD(op_cyl_mg);
}
Operator_Cylinder* op_cyl_inner = op_cyl_mg->GetInnerOperator();
op_cyl_mg = dynamic_cast<Operator_CylinderMultiGrid*>(op_cyl_inner);
if (op_cyl_mg==NULL) //inner most operator reached
{
if (g_settings.GetVerboseLevel()>0)
cout << __func__ << ": Operator with highest multi-grid level chosen." << endl;
return new Engine_Interface_Cylindrical_FDTD(op_cyl_inner);
}
// try next level
}
Operator_Cylinder* op_cyl = dynamic_cast<Operator_Cylinder*>(FDTD_Op);
if (op_cyl)
return new Engine_Interface_Cylindrical_FDTD(op_cyl);
Operator_sse* op_sse = dynamic_cast<Operator_sse*>(FDTD_Op);
if (op_sse)
return new Engine_Interface_SSE_FDTD(op_sse);
return new Engine_Interface_FDTD(FDTD_Op);
}
void openEMS::SetVerboseLevel(int level)
{
g_settings.SetVerboseLevel(level);
}
bool openEMS::SetupProcessing()
{
//*************** setup processing ************//
if (g_settings.GetVerboseLevel()>0)
cout << "Setting up processing..." << endl;
unsigned int Nyquist = FDTD_Op->GetExcitationSignal()->GetNyquistNum();
PA = new ProcessingArray(Nyquist);
double start[3];
double stop[3];
bool l_MultiBox = false;
vector<CSProperties*> Probes = m_CSX->GetPropertyByType(CSProperties::PROBEBOX);
for (size_t i=0; i<Probes.size(); ++i)
{
CSPropProbeBox* pb = Probes.at(i)->ToProbeBox();
if (!pb)
continue;
//check whether one or more probe boxes are defined
l_MultiBox = (pb->GetQtyPrimitives()>1);
for (size_t nb=0; nb<pb->GetQtyPrimitives(); ++nb)
{
CSPrimitives* prim = pb->GetPrimitive(nb);
if (prim!=NULL)
{
double bnd[6] = {0,0,0,0,0,0};
prim->GetBoundBox(bnd,true);
start[0]= bnd[0];
start[1]=bnd[2];
start[2]=bnd[4];
stop[0] = bnd[1];
stop[1] =bnd[3];
stop[2] =bnd[5];
ProcessIntegral* proc = NULL;
if (pb->GetProbeType()==0)
{
CSPrimBox* box = prim->ToBox();
if (!(box) || box->GetDimension()!=1)
{
cerr << "openEMS::SetupProcessing: Error: Probe primitive type or dimension not suitable ... skipping probe " << pb->GetName() << endl;
continue;
}
// use the direction and coordinates of the box
for (int n=0;n<3;++n)
{
start[n] = box->GetCoord(2*n);
stop[n] = box->GetCoord(2*n+1);
}
ProcessVoltage* procVolt = new ProcessVoltage(NewEngineInterface());
proc=procVolt;
}
else if (pb->GetProbeType()==1)
{
ProcessCurrent* procCurr = new ProcessCurrent(NewEngineInterface());
proc=procCurr;
}
else if (pb->GetProbeType()==2)
proc = new ProcessFieldProbe(NewEngineInterface(),0);
else if (pb->GetProbeType()==3)
proc = new ProcessFieldProbe(NewEngineInterface(),1);
else if ((pb->GetProbeType()==10) || (pb->GetProbeType()==11))
{
ProcessModeMatch* pmm = new ProcessModeMatch(NewEngineInterface());
pmm->SetFieldType(pb->GetProbeType()-10);
pmm->SetModeFunction(0,pb->GetAttributeValue("ModeFunctionX"));
pmm->SetModeFunction(1,pb->GetAttributeValue("ModeFunctionY"));
pmm->SetModeFunction(2,pb->GetAttributeValue("ModeFunctionZ"));
proc = pmm;
}
else
{
cerr << "openEMS::SetupFDTD: Warning: Probe type " << pb->GetProbeType() << " of property '" << pb->GetName() << "' is unknown..." << endl;
continue;
}
if (CylinderCoords)
proc->SetMeshType(Processing::CYLINDRICAL_MESH);
if ((pb->GetProbeType()==1) || (pb->GetProbeType()==3))
{
proc->SetDualTime(true);
proc->SetDualMesh(true);
}
if (pb->GetProbeType()==11)
proc->SetDualTime(true);
proc->SetProcessInterval(Nyquist/m_OverSampling);
if (pb->GetStartTime()>0 || pb->GetStopTime()>0)
proc->SetProcessStartStopTime(pb->GetStartTime(), pb->GetStopTime());
proc->AddFrequency(pb->GetFDSamples());
proc->GetNormalDir(pb->GetNormalDir());
if (l_MultiBox==false)
proc->SetName(pb->GetName());
else
proc->SetName(pb->GetName(),nb);
proc->DefineStartStopCoord(start,stop);
if (g_settings.showProbeDiscretization())
proc->ShowSnappedCoords();
proc->SetWeight(pb->GetWeighting());
PA->AddProcessing(proc);
prim->SetPrimitiveUsed(true);
}
}
}
vector<CSProperties*> DumpProps = m_CSX->GetPropertyByType(CSProperties::DUMPBOX);
for (size_t i=0; i<DumpProps.size(); ++i)
{
ProcessFields* ProcField=NULL;
//check whether one or more probe boxes are defined
l_MultiBox = (DumpProps.at(i)->GetQtyPrimitives()>1);
for (size_t nb=0; nb<DumpProps.at(i)->GetQtyPrimitives(); ++nb)
{
CSPrimitives* prim = DumpProps.at(i)->GetPrimitive(nb);
if (prim!=NULL)
{
double bnd[6] = {0,0,0,0,0,0};
prim->GetBoundBox(bnd,true);
start[0]= bnd[0];
start[1]=bnd[2];
start[2]=bnd[4];
stop[0] = bnd[1];
stop[1] =bnd[3];
stop[2] =bnd[5];
CSPropDumpBox* db = DumpProps.at(i)->ToDumpBox();
if (db)
{
if ((db->GetDumpType()>=0) && (db->GetDumpType()<=5))
ProcField = new ProcessFieldsTD(NewEngineInterface(db->GetMultiGridLevel()));
else if ((db->GetDumpType()>=10) && (db->GetDumpType()<=15))
ProcField = new ProcessFieldsFD(NewEngineInterface(db->GetMultiGridLevel()));
else if ( ((db->GetDumpType()>=20) && (db->GetDumpType()<=22)) || (db->GetDumpType()==29) )
{
ProcessFieldsSAR* procSAR = new ProcessFieldsSAR(NewEngineInterface(db->GetMultiGridLevel()));
ProcField = procSAR;
string method = db->GetAttributeValue("SAR_Method");
if (!method.empty())
procSAR->SetSARAveragingMethod(method);
// use (center)-cell based conductivity only
procSAR->SetUseCellConductivity(true);
}
else
cerr << "openEMS::SetupFDTD: unknown dump box type... skipping!" << endl;
if (ProcField)
{
ProcField->SetEnable(Enable_Dumps);
ProcField->SetProcessInterval(Nyquist/m_OverSampling);
if (db->GetStopTime()>0 || db->GetStartTime()>0)
ProcField->SetProcessStartStopTime(db->GetStartTime(), db->GetStopTime());
if ((db->GetDumpType()==1) || (db->GetDumpType()==11))
{
ProcField->SetDualTime(true);
//make dualMesh the default mesh for h-field dumps, maybe overwritten by interpolation type (node-interpolation)
ProcField->SetDualMesh(true);
}
if (db->GetDumpType()>=10)
{
ProcField->AddFrequency(db->GetFDSamples());
ProcField->SetDumpType((ProcessFields::DumpType)(db->GetDumpType()-10));
}
else
ProcField->SetDumpType((ProcessFields::DumpType)db->GetDumpType());
if (db->GetDumpType()==20)
ProcField->SetDumpType(ProcessFields::SAR_LOCAL_DUMP);
if (db->GetDumpType()==21)
ProcField->SetDumpType(ProcessFields::SAR_1G_DUMP);
if (db->GetDumpType()==22)
ProcField->SetDumpType(ProcessFields::SAR_10G_DUMP);
if (db->GetDumpType()==29)
ProcField->SetDumpType(ProcessFields::SAR_RAW_DATA);
//SetupMaterialStorages() has previewed storage needs... refresh here to prevent cleanup!!!
if ( ProcField->NeedPermittivity() && Enable_Dumps)
FDTD_Op->SetMaterialStoreFlags(0,true);
if ( ProcField->NeedConductivity() && Enable_Dumps)
FDTD_Op->SetMaterialStoreFlags(1,true);
if ( ProcField->NeedPermeability() && Enable_Dumps)
FDTD_Op->SetMaterialStoreFlags(2,true);
ProcField->SetDumpMode((Engine_Interface_Base::InterpolationType)db->GetDumpMode());
ProcField->SetFileType((ProcessFields::FileType)db->GetFileType());
if (CylinderCoords)
ProcField->SetMeshType(Processing::CYLINDRICAL_MESH);
if (db->GetSubSampling())
for (int n=0; n<3; ++n)
ProcField->SetSubSampling(db->GetSubSampling(n),n);
if (db->GetOptResolution())
for (int n=0; n<3; ++n)
ProcField->SetOptResolution(db->GetOptResolution(n),n);
if (l_MultiBox==false)
ProcField->SetName(db->GetName());
else
ProcField->SetName(db->GetName(),nb);
ProcField->SetFileName(ProcField->GetName());
ProcField->DefineStartStopCoord(start,stop);
if (g_settings.showProbeDiscretization())
ProcField->ShowSnappedCoords();
PA->AddProcessing(ProcField);
prim->SetPrimitiveUsed(true);
}
}
}
}
}
return true;
}
bool openEMS::SetupMaterialStorages()
{
vector<CSProperties*> DumpProps = m_CSX->GetPropertyByType(CSProperties::DUMPBOX);
for (size_t i=0; i<DumpProps.size(); ++i)
{
CSPropDumpBox* db = DumpProps.at(i)->ToDumpBox();
if (!db)
continue;
if (db->GetQtyPrimitives()==0)
continue;
//check for current density dump types
if ( ((db->GetDumpType()==2) || (db->GetDumpType()==12) || // current density storage
(db->GetDumpType()==20) || (db->GetDumpType()==21) || (db->GetDumpType()==22)) && // SAR dump types
Enable_Dumps )
FDTD_Op->SetMaterialStoreFlags(1,true); //tell operator to store kappa material data
if ( ((db->GetDumpType()==4) || (db->GetDumpType()==14)) || Enable_Dumps) // electric flux density storage
FDTD_Op->SetMaterialStoreFlags(0,true); //tell operator to store epsR material data
if ( ((db->GetDumpType()==5) || (db->GetDumpType()==15)) || Enable_Dumps) // magnetic flux density storage
FDTD_Op->SetMaterialStoreFlags(2,true); //tell operator to store mueR material data
}
return true;
}
void openEMS::SetupCylinderMultiGrid(std::string val)
{
m_CC_MultiGrid.clear();
m_CC_MultiGrid = SplitString2Double(val,',');
}
bool openEMS::SetupOperator()
{
if (CylinderCoords)
{
if (m_CC_MultiGrid.size()>0)
{
FDTD_Op = Operator_CylinderMultiGrid::New(m_CC_MultiGrid, m_engine_numThreads);
if (FDTD_Op==NULL)
FDTD_Op = Operator_Cylinder::New(m_engine_numThreads);
}
else
FDTD_Op = Operator_Cylinder::New(m_engine_numThreads);
}
else if (m_engine == EngineType_SSE)
{
FDTD_Op = Operator_sse::New();
}
else if (m_engine == EngineType_SSE_Compressed)
{
FDTD_Op = Operator_SSE_Compressed::New();
}
else if (m_engine == EngineType_Multithreaded)
{
FDTD_Op = Operator_Multithread::New(m_engine_numThreads);
}
else
{
FDTD_Op = Operator::New();
}
return true;
}
void openEMS::Set_BC_Type(int idx, int type)
{
if ((idx<0) || (idx>5))
return;
m_BC_type[idx] = type;
}
int openEMS::Get_BC_Type(int idx)
{
if ((idx<0) || (idx>5))
return -1;
return m_BC_type[idx];
}
void openEMS::Set_BC_PML(int idx, unsigned int size)
{
if ((idx<0) || (idx>5))
return;
m_BC_type[idx] = 3;
m_PML_size[idx] = size;
}
int openEMS::Get_PML_Size(int idx)
{
if ((idx<0) || (idx>5))
return -1;
if (m_BC_type[idx]!=3)
return -1; // return -1 if BC was *not* a PML
return m_PML_size[idx];
}
void openEMS::Set_Mur_PhaseVel(int idx, double val)
{
if ((idx<0) || (idx>5))
return;
m_Mur_v_ph[idx] = val;
}
bool openEMS::ParseFDTDSetup(std::string file)
{
Reset();
if (g_settings.GetVerboseLevel()>0)
cout << "Read openEMS xml file: " << file << " ..." << endl;
TiXmlDocument doc(file);
if (!doc.LoadFile())
{
cerr << "openEMS: Error File-Loading failed!!! File: " << file << endl;
exit(-1);
}
if (g_settings.GetVerboseLevel()>0)
cout << "Read openEMS Settings..." << endl;
TiXmlElement* openEMSxml = doc.FirstChildElement("openEMS");
if (openEMSxml==NULL)
{
cerr << "Can't read openEMS ... " << endl;
exit(-1);
}
TiXmlElement* FDTD_Opts = openEMSxml->FirstChildElement("FDTD");
if (FDTD_Opts==NULL)
{
cerr << "Can't read openEMS FDTD Settings... " << endl;
exit(-1);
}
if (g_settings.GetVerboseLevel()>0)
cout << "Read Geometry..." << endl;
ContinuousStructure* csx = new ContinuousStructure();
string EC(csx->ReadFromXML(openEMSxml));
if (EC.empty()==false)
cerr << EC << endl;
this->SetCSX(csx);
return this->Parse_XML_FDTDSetup(FDTD_Opts);
}
bool openEMS::Parse_XML_FDTDSetup(TiXmlElement* FDTD_Opts)
{
double dhelp=0;
FDTD_Opts->QueryDoubleAttribute("NumberOfTimesteps",&dhelp);
if (dhelp<0)
this->SetNumberOfTimeSteps(0);
else
this->SetNumberOfTimeSteps((unsigned int)dhelp);
int ihelp = 0;
FDTD_Opts->QueryIntAttribute("CylinderCoords",&ihelp);
if (ihelp==1)
{
this->SetCylinderCoords(true);
const char* cchelp = FDTD_Opts->Attribute("MultiGrid");
if (cchelp!=NULL)
this->SetupCylinderMultiGrid(string(cchelp));
}
dhelp = 0;
FDTD_Opts->QueryDoubleAttribute("MaxTime",&dhelp);
if (dhelp>0)
this->SetMaxTime(dhelp);
dhelp = 0;
FDTD_Opts->QueryDoubleAttribute("endCriteria",&dhelp);
if (dhelp==0)
this->SetEndCriteria(1e-6);
else
this->SetEndCriteria(dhelp);
ihelp = 0;
FDTD_Opts->QueryIntAttribute("OverSampling",&ihelp);
if (ihelp>1)
this->SetOverSampling(ihelp);
// check for cell constant material averaging
if (FDTD_Opts->QueryIntAttribute("CellConstantMaterial",&ihelp)==TIXML_SUCCESS)
this->SetCellConstantMaterial(ihelp==1);
TiXmlElement* BC = FDTD_Opts->FirstChildElement("BoundaryCond");
if (BC==NULL)
{
cerr << "Can't read openEMS boundary cond Settings... " << endl;
exit(-3);
}
// const char* tmp = BC->Attribute("PML_Grading");
// string pml_gradFunc;
// if (tmp)
// pml_gradFunc = string(tmp);
string bound_names[] = {"xmin","xmax","ymin","ymax","zmin","zmax"};
string s_bc;
for (int n=0; n<6; ++n)
{
int EC = BC->QueryIntAttribute(bound_names[n].c_str(),&ihelp);
if (EC==TIXML_SUCCESS)
{
this->Set_BC_Type(n, ihelp);
continue;
}
if (EC==TIXML_WRONG_TYPE)
{
const char* tmp = BC->Attribute(bound_names[n].c_str());
if (tmp)
s_bc = string(tmp);
else
cerr << "openEMS::SetupBoundaryConditions: Warning, boundary condition for \"" << bound_names[n] << "\" unknown... set to PEC " << endl;
if (s_bc=="PEC")
this->Set_BC_Type(n, 0);
else if (s_bc=="PMC")
this->Set_BC_Type(n, 1);
else if (s_bc=="MUR")
this->Set_BC_Type(n, 2);
else if (strncmp(s_bc.c_str(),"PML_=",4)==0)
this->Set_BC_PML(n, atoi(s_bc.c_str()+4));
else
cerr << "openEMS::SetupBoundaryConditions: Warning, boundary condition for \"" << bound_names[n] << "\" unknown... set to PEC " << endl;
}
else
cerr << "openEMS::SetupBoundaryConditions: Warning, boundary condition for \"" << bound_names[n] << "\" not found... set to PEC " << endl;
}
//read general mur phase velocity
if (BC->QueryDoubleAttribute("MUR_PhaseVelocity",&dhelp) == TIXML_SUCCESS)
for (int n=0;n<6;++n)
this->Set_Mur_PhaseVel(n, dhelp);
string mur_v_ph_names[6] = {"MUR_PhaseVelocity_xmin", "MUR_PhaseVelocity_xmax", "MUR_PhaseVelocity_ymin", "MUR_PhaseVelocity_ymax", "MUR_PhaseVelocity_zmin", "MUR_PhaseVelocity_zmax"};
for (int n=0; n<6; ++n)
if (BC->QueryDoubleAttribute(mur_v_ph_names[n].c_str(),&dhelp) == TIXML_SUCCESS)
this->Set_Mur_PhaseVel(n, dhelp);
TiXmlElement* m_Excite_Elem = FDTD_Opts->FirstChildElement("Excitation");
if (!m_Excite_Elem)
{
cerr << "Excitation::setupExcitation: Error, can't read openEMS excitation settings... " << endl;
return false;
}
Excitation* exc = this->InitExcitation();
double f0=0, fc=0, f_max=0;
ihelp = -1;
m_Excite_Elem->QueryIntAttribute("Type",&ihelp);
switch (ihelp)
{
case Excitation::GaissianPulse:
m_Excite_Elem->QueryDoubleAttribute("f0",&f0);
m_Excite_Elem->QueryDoubleAttribute("fc",&fc);
exc->SetupGaussianPulse(f0, fc);
break;
case Excitation::Sinusoidal: // sinusoidal excite
m_Excite_Elem->QueryDoubleAttribute("f0",&f0);
exc->SetupSinusoidal(f0);
break;
case Excitation::DiracPulse:
FDTD_Opts->QueryDoubleAttribute("f_max",&f_max);
exc->SetupDiracPulse(f_max);
break;
case Excitation::Step:
FDTD_Opts->QueryDoubleAttribute("f_max",&f_max);
exc->SetupStepExcite(f_max);
break;
case Excitation::CustomExcite:
m_Excite_Elem->QueryDoubleAttribute("f0",&f0);
FDTD_Opts->QueryDoubleAttribute("f_max",&f_max);
exc->SetupCustomExcite(m_Excite_Elem->Attribute("Function"), f0, f_max);
break;
}
if (FDTD_Opts->QueryIntAttribute("TimeStepMethod",&ihelp)==TIXML_SUCCESS)
this->SetTimeStepMethod(ihelp);
if (FDTD_Opts->QueryDoubleAttribute("TimeStep",&dhelp)==TIXML_SUCCESS)
this->SetTimeStep(dhelp);
if (FDTD_Opts->QueryDoubleAttribute("TimeStepFactor",&dhelp)==TIXML_SUCCESS)
this->SetTimeStepFactor(dhelp);
return true;
}
void openEMS::SetGaussExcite(double f0, double fc)
{
this->InitExcitation();
m_Exc->SetupGaussianPulse(f0, fc);
}
void openEMS::SetSinusExcite(double f0)
{
this->InitExcitation();
m_Exc->SetupSinusoidal(f0);
}
void openEMS::SetDiracExcite(double f_max)
{
this->InitExcitation();
m_Exc->SetupDiracPulse(f_max);
}
void openEMS::SetStepExcite(double f_max)
{
this->InitExcitation();
m_Exc->SetupStepExcite(f_max);
}
Excitation* openEMS::InitExcitation()
{
delete m_Exc;
m_Exc = new Excitation();
return m_Exc;
}
void openEMS::SetCSX(ContinuousStructure* csx)
{
delete m_CSX;
m_CSX = csx;
}
int openEMS::SetupFDTD()
{
timeval startTime;
gettimeofday(&startTime,NULL);
if (m_CSX==NULL)
{
cerr << "openEMS::SetupFDTD: Error: CSXCAD is not set!" << endl;
return 3;
}
if (m_CSX==NULL)
{
cerr << "openEMS::SetupFDTD: Error: CSXCAD is not set!" << endl;
return 3;
}
std::string ec = m_CSX->Update();
if (!ec.empty())
cerr << ec << endl;
if (g_settings.GetVerboseLevel()>2)
m_CSX->ShowPropertyStatus(cerr);
if (CylinderCoords)
if (m_CSX->GetCoordInputType()!=CYLINDRICAL)
{
cerr << "openEMS::SetupFDTD: Warning: Coordinate system found in the CSX file is not a cylindrical. Forcing to cylindrical coordinate system!" << endl;
m_CSX->SetCoordInputType(CYLINDRICAL); //tell CSX to use cylinder-coords
}
if (m_debugCSX)
m_CSX->Write2XML("debugCSX.xml");
//*************** setup operator ************//
if (SetupOperator()==false)
return 2;
// default material averaging is quarter cell averaging
FDTD_Op->SetQuarterCellMaterialAvg();
if (m_CellConstantMaterial)
{
FDTD_Op->SetCellConstantMaterial();
if (g_settings.GetVerboseLevel()>0)
cout << "Enabling constant cell material assumption." << endl;
}
if (m_Exc==NULL)
{
cerr << "openEMS::SetupFDTD: Error, excitation is not defined! Abort!" << endl;
return 3;
}
FDTD_Op->SetExcitationSignal(m_Exc);
FDTD_Op->AddExtension(new Operator_Ext_Excitation(FDTD_Op));
if (!CylinderCoords)
FDTD_Op->AddExtension(new Operator_Ext_TFSF(FDTD_Op));
if (FDTD_Op->SetGeometryCSX(m_CSX)==false) return(2);
SetupBoundaryConditions();
FDTD_Op->SetTimeStepMethod(m_TS_method);
if (m_TS>0)
FDTD_Op->SetTimestep(m_TS);
if (m_TS_fac<1)
FDTD_Op->SetTimestepFactor(m_TS_fac);
// Is a steady state detection requested
Operator_Ext_SteadyState* Op_Ext_SSD = NULL;
if (m_Exc->GetSignalPeriod()>0)
{
cout << "Create a steady state detection using a period of " << m_Exc->GetSignalPeriod() << " s" << endl;
Op_Ext_SSD = new Operator_Ext_SteadyState(FDTD_Op, m_Exc->GetSignalPeriod());
unsigned int pos[3];
for (int p=0;p<3;++p)
pos[p] = FDTD_Op->GetNumberOfLines(p)/2;
Op_Ext_SSD->Add_E_Probe(pos, 0);
Op_Ext_SSD->Add_E_Probe(pos, 1);
Op_Ext_SSD->Add_E_Probe(pos, 2);
for (int n=0;n<3;++n)
{
for (int p=0;p<3;++p)
pos[p] = FDTD_Op->GetNumberOfLines(p)/2;
pos[n] *= 1/4;
Op_Ext_SSD->Add_E_Probe(pos, 0);
Op_Ext_SSD->Add_E_Probe(pos, 1);
Op_Ext_SSD->Add_E_Probe(pos, 2);
pos[n] *= 3/4;
Op_Ext_SSD->Add_E_Probe(pos, 0);
Op_Ext_SSD->Add_E_Probe(pos, 1);
Op_Ext_SSD->Add_E_Probe(pos, 2);
}
FDTD_Op->AddExtension(Op_Ext_SSD);
}
if ((m_CSX->GetQtyPropertyType(CSProperties::LORENTZMATERIAL)>0) || (m_CSX->GetQtyPropertyType(CSProperties::DEBYEMATERIAL)>0))
FDTD_Op->AddExtension(new Operator_Ext_LorentzMaterial(FDTD_Op));
if (m_CSX->GetQtyPropertyType(CSProperties::CONDUCTINGSHEET)>0)
FDTD_Op->AddExtension(new Operator_Ext_ConductingSheet(FDTD_Op, m_Exc->GetMaxFreq()));
if (m_CSX->GetQtyPropertyType(CSProperties::LUMPED_ELEMENT)>0)
FDTD_Op->AddExtension(new Operator_Ext_LumpedRLC(FDTD_Op));