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Field dumps (E-field) TD, hard E-source

pull/1/head
Thorsten Liebig 2010-03-02 14:54:50 +01:00
parent 61f69dd240
commit ca44334da5
17 changed files with 295 additions and 50 deletions
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2
Analyse/PlotVoltage.m
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@ -11,6 +11,7 @@ L=numel(t);
subplot(2,1,1);
plot(t,u);
grid on;
dt=t(2)-t(1);
@ -18,4 +19,5 @@ f = (1:L)/L/dt;
fu = fft(u)/L;
subplot(2,1,2);
plot(f(1:L/2),abs(fu(1:L/2)));
grid on;

12
FDTD/cartoperator.cpp
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@ -432,14 +432,22 @@ bool CartOperator::CalcEFieldExcitation()
if (prop)
{
CSPropElectrode* elec = prop->ToElectrode();
if (elec->GetExcitType()==0)
if ((elec->GetExcitType()==0) || (elec->GetExcitType()==1)) //soft or hard E-Field excite!
{
vDelay.push_back((unsigned int)(elec->GetDelay()/dT));
for (int n=0;n<3;++n)
{
vIndex[n].push_back(pos[n]);
double delta=MainOp->GetIndexDelta(n,pos[n])*gridDelta;
vExcit[n].push_back(elec->GetWeightedExcitation(n,coord)*delta);
if (elec->GetActiveDir(n))
vExcit[n].push_back(elec->GetWeightedExcitation(n,coord)*delta);
else
vExcit[n].push_back(0);
if ((elec->GetExcitType()==1) && (elec->GetActiveDir(n))) //hard excite
{
vv[n][pos[0]][pos[1]][pos[2]] = 0;
vi[n][pos[0]][pos[1]][pos[2]] = 0;
}
}
}
}

3
FDTD/engine.cpp
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@ -62,7 +62,8 @@ bool Engine::IterateTS(unsigned int iterTS)
for (unsigned int n=0;n<Op->E_Ex_Count;++n)
{
exc_pos = (int)numTS - (int)Op->E_Ex_delay[n];
exc_pos*= (exc_pos>0 && exc_pos<Op->ExciteLength);
exc_pos*= (exc_pos>0 && exc_pos<(int)Op->ExciteLength);
// if (n==0) cerr << numTS << " => " << Op->ExciteSignal[exc_pos] << endl;
volt[0][Op->E_Ex_index[0][n]][Op->E_Ex_index[1][n]][Op->E_Ex_index[2][n]] += Op->E_Ex_amp[0][n]*Op->ExciteSignal[exc_pos];
volt[1][Op->E_Ex_index[0][n]][Op->E_Ex_index[1][n]][Op->E_Ex_index[2][n]] += Op->E_Ex_amp[1][n]*Op->ExciteSignal[exc_pos];
volt[2][Op->E_Ex_index[0][n]][Op->E_Ex_index[1][n]][Op->E_Ex_index[2][n]] += Op->E_Ex_amp[2][n]*Op->ExciteSignal[exc_pos];

1
FDTD/engine.h
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@ -6,6 +6,7 @@
class Engine
{
friend class ProcessVoltage;
friend class ProcessFieldsTD;
public:
Engine(Operator* op);
virtual ~Engine();

40
FDTD/operator.cpp
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@ -54,27 +54,33 @@ unsigned int Operator::GetNyquistNum(double fmax)
return floor(T0/2/dT);
}
bool Operator::SnapToMesh(double* dcoord, unsigned int* uicoord)
bool Operator::SnapToMesh(double* dcoord, unsigned int* uicoord, bool lower)
{
bool ok=true;
for (int n=0;n<3;++n)
{
if (dcoord[n]<discLines[n][0]) {ok=false;uicoord[n]=0;};
if (dcoord[n]>discLines[n][numLines[n]-1]) {ok=false;uicoord[n]=numLines[n]-1;};
for (unsigned int i=0;i<numLines[n]-1;++i)
{
if (dcoord[n]<=discLines[n][i])
uicoord[n]=0;
if (dcoord[n]<discLines[n][0]) {ok=false;uicoord[n]=0;}
else if (dcoord[n]==discLines[n][0]) {uicoord[n]=0;}
else if (dcoord[n]>discLines[n][numLines[n]-1]) {ok=false;uicoord[n]=numLines[n]-1; if (lower) uicoord[n]=numLines[n]-2;}
else if (dcoord[n]==discLines[n][numLines[n]-1]) {uicoord[n]=numLines[n]-1; if (lower) uicoord[n]=numLines[n]-2;}
else
for (unsigned int i=0;i<numLines[n]-1;++i)
{
if (fabs(dcoord[n]-discLines[n][i])<(fabs(dcoord[n]-discLines[n][i+1])))
uicoord[n]=i;
else
uicoord[n]=i+1;
i = numLines[n];
if (dcoord[n]<=discLines[n][i])
{
if (fabs(dcoord[n]-discLines[n][i])<(fabs(dcoord[n]-discLines[n][i+1])))
uicoord[n]=i;
else
uicoord[n]=i+1;
if (lower) uicoord[n]=i;
i = numLines[n];
}
}
}
}
// cerr << "Operator::SnapToMesh: " << discLines[0][uicoord[0]] << " " << discLines[1][uicoord[1]] << " " << discLines[2][uicoord[2]] << endl;
// cerr << "Operator::SnapToMesh: " << uicoord[0] << " " << uicoord[1] << " " << uicoord[2] << endl;
// cerr << "Operator::SnapToMesh Wish: " << dcoord[0] << " " << dcoord[1] << " " << dcoord[2] << endl;
// cerr << "Operator::SnapToMesh Found: " << discLines[0][uicoord[0]] << " " << discLines[1][uicoord[1]] << " " << discLines[2][uicoord[2]] << endl;
// cerr << "Operator::SnapToMesh Index: " << uicoord[0] << " " << uicoord[1] << " " << uicoord[2] << endl;
return ok;
}
@ -99,9 +105,9 @@ void Operator::ShowSize()
unsigned int FieldSize = 6*numLines[0]*numLines[1]*numLines[2]*sizeof(FDTD_FLOAT);
double MBdiff = 1024*1024;
cout << "FDTD Operator Size:" << endl;
cout << "Size of Operator in Byte : " << OpSize << " Byte (" << (double)OpSize/MBdiff << " MB) " << endl;
cout << "Size of Field-Data in Byte: " << FieldSize << " Byte (" << (double)FieldSize/MBdiff << " MB) " << endl;
cout << "---- Stat: FDTD Operator ----" << endl;
cout << "Size of Operator : " << OpSize << " Byte (" << (double)OpSize/MBdiff << " MB) " << endl;
cout << "Size of Field-Data: " << FieldSize << " Byte (" << (double)FieldSize/MBdiff << " MB) " << endl;
}
void Operator::CalcGaussianPulsExcitation(double f0, double fc)

4
FDTD/operator.h
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@ -11,6 +11,8 @@
class Operator
{
friend class Engine;
friend class ProcessFields;
friend class ProcessFieldsTD;
public:
Operator();
virtual ~Operator();
@ -34,7 +36,7 @@ public:
virtual void Reset();
bool SnapToMesh(double* coord, unsigned int* uicoord);
bool SnapToMesh(double* coord, unsigned int* uicoord, bool lower=false);
protected:
virtual void Init();

89
FDTD/processfields.cpp Normal file
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@ -0,0 +1,89 @@
#include "processfields.h"
ProcessFields::ProcessFields(Operator* op, Engine* eng) : Processing(op, eng)
{
DumpMode=0;
DumpType = 0;
for (int n=0;n<3;++n)
{
discDLines[n]=NULL;
}
}
ProcessFields::~ProcessFields()
{
for (int n=0;n<3;++n)
{
delete[] discDLines[n];
discDLines[n]=NULL;
}
}
void ProcessFields::DefineStartStopCoord(double* dstart, double* dstop)
{
if (Op->SnapToMesh(dstart,start,true)==false) cerr << "ProcessFields::DefineStartStopCoord: Snapping error in mesh, check start value!!" << endl;
if (Op->SnapToMesh(dstop,stop,true)==false) cerr << "ProcessFields::DefineStartStopCoord: Snapping error in mesh, check start value!!" << endl;
for (int n=0;n<3;++n)
{
// cerr << "start " << start[n] << "stop " << stop[n];
if (start[n]>stop[n])
{
unsigned int help = start[n];
start[n]=stop[n];
stop[n]=help;
}
++stop[n];
numDLines[n]=stop[n]-start[n];
// cerr << " number of lines " << numDLines[n] << endl;
delete[] discDLines[n];
discDLines[n] = new double[numDLines[n]];
for (unsigned int i=0;i<numDLines[n];++i)
{
discDLines[n][i] = 0.5*(Op->discLines[n][start[n]+i+1] + Op->discLines[n][start[n]+i]);
// cerr << n << " : " << discDLines[n][i] << endl;
}
}
}
bool ProcessFields::DumpFieldArray2VTK(ofstream &file, string name, FDTD_FLOAT**** array, double** discLines, unsigned int* numLines)
{
file << "# vtk DataFile Version 2.0" << endl;
file << "Rectilinear Grid openEMS_ProcessFields" << endl;
file << "ASCII" << endl;
file << "DATASET RECTILINEAR_GRID " << endl;
file << "DIMENSIONS " << numLines[0] << " " << numLines[1] << " " << numLines[2] << endl;
file << "X_COORDINATES " << numLines[0] << " float" << endl;
for (unsigned int i=0;i<numLines[0];++i)
file << discLines[0][i] << " ";
file << endl;
file << "Y_COORDINATES " << numLines[1] << " float" << endl;
for (unsigned int i=0;i<numLines[1];++i)
file << discLines[1][i] << " ";
file << endl;
file << "Z_COORDINATES " << numLines[2] << " float" << endl;
for (unsigned int i=0;i<numLines[2];++i)
file << discLines[2][i] << " ";
file << endl << endl;
file << "POINT_DATA " << numLines[0]*numLines[1]*numLines[2] << endl;
file << "VECTORS " << name << " float " << endl;
unsigned int pos[3];
for (pos[2]=0;pos[2]<numLines[2];++pos[2])
{
for (pos[1]=0;pos[1]<numLines[1];++pos[1])
{
for (pos[0]=0;pos[0]<numLines[0];++pos[0])
{
//in x
file << array[0][pos[0]][pos[1]][pos[2]] << " ";
//in y
file << array[1][pos[0]][pos[1]][pos[2]] << " ";
//in z
file << array[2][pos[0]][pos[1]][pos[2]] << endl;
}
}
}
}

37
FDTD/processfields.h Normal file
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@ -0,0 +1,37 @@
#ifndef PROCESSFIELDS_H
#define PROCESSFIELDS_H
#include "processing.h"
#include "../tools/array_ops.h"
class ProcessFields : public Processing
{
public:
virtual ~ProcessFields();
virtual void DefineStartStopCoord(double* dstart, double* dstop);
//! Used file pattern e.g. pattern="tmp/efield_" --> "tmp/efield_000045.vtk" for timestep 45 or "tmp/efield_2.40000e9.vtk" for 2.4GHz E-field dump.
void SetFilePattern(string fp) {filePattern=fp;}
//! This methode will dump all fields in the center of a main cell (dual-node) using 4 E-field and 2 H-fields per direction. (default)
void SetDumpMode2Cell() {DumpMode=0;}
//! Set dump type: 0 for E-fields, 1 for H-fields, 2 for D-fields, 3 for B-fields, 4 for J-fields, etc...
void SetDumpType(int type) {DumpType=type;}
// virtual void Process();
protected:
ProcessFields(Operator* op, Engine* eng);
bool DumpFieldArray2VTK(ofstream &file, string name, FDTD_FLOAT**** array, double** discLines, unsigned int* numLines);
int DumpMode;
int DumpType;
string filePattern;
unsigned int numDLines[3];
double* discDLines[3];
};
#endif // PROCESSFIELDS_H

61
FDTD/processfields_td.cpp Normal file
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@ -0,0 +1,61 @@
#include "processfields_td.h"
#include <iomanip>
#include <sstream>
#include <string>
ProcessFieldsTD::ProcessFieldsTD(Operator* op, Engine* eng) : ProcessFields(op, eng)
{
pad_length = 8;
}
ProcessFieldsTD::~ProcessFieldsTD()
{
}
void ProcessFieldsTD::Process()
{
stringstream ss;
ss << std::setw( pad_length ) << std::setfill( '0' ) << Eng->numTS;
string filename = filePattern + ss.str() + ".vtk";
ofstream file(filename.c_str());
if (file.is_open()==false) { cerr << "ProcessFieldsTD::Process: can't open file '" << filename << "' for writing... abort! " << endl; return;};
if (DumpType==0)
{
//create array
FDTD_FLOAT**** E_T = Create_N_3DArray(numDLines);
unsigned int pos[3] = {start[0],start[1],start[2]};
unsigned int OpPos[3];
double delta;
// cerr << "processing e-fields... " << endl;
for (pos[0]=0;pos[0]<numDLines[0];++pos[0])
{
OpPos[0]=start[0]+pos[0];
for (pos[1]=0;pos[1]<numDLines[1];++pos[1])
{
OpPos[1]=start[1]+pos[1];
for (pos[2]=0;pos[2]<numDLines[2];++pos[2])
{
OpPos[2]=start[2]+pos[2];
//in x
delta = Op->discLines[0][OpPos[0]+1] - Op->discLines[0][OpPos[0]];
E_T[0][pos[0]][pos[1]][pos[2]] = Eng->volt[0][OpPos[0]][OpPos[1]][OpPos[2]] + Eng->volt[0][OpPos[0]][OpPos[1]+1][OpPos[2]] + Eng->volt[0][OpPos[0]][OpPos[1]][OpPos[2]+1] + Eng->volt[0][OpPos[0]][OpPos[1]+1][OpPos[2]+1];
E_T[0][pos[0]][pos[1]][pos[2]] /= delta;
//in y
delta = Op->discLines[1][OpPos[1]+1] - Op->discLines[1][OpPos[1]];
E_T[1][pos[0]][pos[1]][pos[2]] = Eng->volt[1][OpPos[0]][OpPos[1]][OpPos[2]] + Eng->volt[1][OpPos[0]+1][OpPos[1]][OpPos[2]] + Eng->volt[1][OpPos[0]][OpPos[1]][OpPos[2]+1] + Eng->volt[1][OpPos[0]+1][OpPos[1]][OpPos[2]+1];
E_T[1][pos[0]][pos[1]][pos[2]] /= delta;
//in z
delta = Op->discLines[2][OpPos[2]+1] - Op->discLines[2][OpPos[2]];
E_T[2][pos[0]][pos[1]][pos[2]] = Eng->volt[2][OpPos[0]][OpPos[1]][OpPos[2]] + Eng->volt[2][OpPos[0]][OpPos[1]+1][OpPos[2]] + Eng->volt[2][OpPos[0]+1][OpPos[1]][OpPos[2]] + Eng->volt[2][OpPos[0]+1][OpPos[1]+1][OpPos[2]];
E_T[2][pos[0]][pos[1]][pos[2]] /= delta;
}
}
}
DumpFieldArray2VTK(file,string("E-Field"),E_T,discDLines,numDLines);
Delete_N_3DArray(E_T,numDLines);
E_T = NULL;
}
file.close();
}

21
FDTD/processfields_td.h Normal file
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@ -0,0 +1,21 @@
#ifndef PROCESSFIELDS_TD_H
#define PROCESSFIELDS_TD_H
#include "processfields.h"
class ProcessFieldsTD : public ProcessFields
{
public:
ProcessFieldsTD(Operator* op, Engine* eng);
virtual ~ProcessFieldsTD();
virtual void Process();
//! Set the length of the filename timestep pad filled with zeros (default is 8)
void SetPadLength(int val) {pad_length=val;};
protected:
int pad_length;
};
#endif // PROCESSFIELDS_TD_H

15
FDTD/processing.cpp
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@ -8,17 +8,12 @@ Processing::Processing(Operator* op, Engine* eng)
Processing::~Processing()
{
file.close();
}
void Processing::OpenFile(string outfile)
void Processing::DefineStartStopCoord(double* dstart, double* dstop)
{
if (file.is_open()) file.close();
file.open(outfile.c_str());
if (file.is_open()==false)
{
cerr << "Can't open file: " << outfile << endl;
return;
}
if (Op->SnapToMesh(dstart,start)==false) cerr << "Processing::DefineStartStopCoord: Snapping error in mesh, check start value!!" << endl;
if (Op->SnapToMesh(dstop,stop)==false) cerr << "Processing::DefineStartStopCoord: Snapping error in mesh, check start value!!" << endl;
}

8
FDTD/processing.h
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@ -9,17 +9,19 @@
class Processing
{
public:
Processing(Operator* op, Engine* eng);
virtual ~Processing();
virtual void OpenFile(string outfile);
virtual void DefineStartStopCoord(double* dstart, double* dstop);
virtual void Process() {};
protected:
Processing(Operator* op, Engine* eng);
Operator* Op;
Engine* Eng;
ofstream file;
unsigned int start[3];
unsigned int stop[3];
};
#endif // PROCESSING_H

13
FDTD/processvoltage.cpp
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@ -6,12 +6,19 @@ ProcessVoltage::ProcessVoltage(Operator* op, Engine* eng) : Processing(op, eng)
ProcessVoltage::~ProcessVoltage()
{
file.close();
}
void ProcessVoltage::DefineStartStopCoord(double* dstart, double* dstop)
void ProcessVoltage::OpenFile(string outfile)
{
if (Op->SnapToMesh(dstart,start)==false) cerr << "ProcessVoltage::DefineStartStopCoord: Snapping error in mesh, check start value!!" << endl;
if (Op->SnapToMesh(dstop,stop)==false) cerr << "ProcessVoltage::DefineStartStopCoord: Snapping error in mesh, check start value!!" << endl;
if (file.is_open()) file.close();
file.open(outfile.c_str());
if (file.is_open()==false)
{
cerr << "Can't open file: " << outfile << endl;
return;
}
}
void ProcessVoltage::Process()

6
FDTD/processvoltage.h
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@ -3,19 +3,19 @@
#include "processing.h"
//! Process voltage along a line from start to stop coordinates. ATM integration along the axis e.g.: in x, then y then z direction (Future: diagonal integration)
class ProcessVoltage : public Processing
{
public:
ProcessVoltage(Operator* op, Engine* eng);
virtual ~ProcessVoltage();
void DefineStartStopCoord(double* dstart, double* dstop);
virtual void OpenFile(string outfile);
virtual void Process();
protected:
unsigned int start[3];
unsigned int stop[3];
ofstream file;
vector<FDTD_FLOAT> voltages;
};

21
main.cpp
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@ -6,6 +6,7 @@
#include "FDTD/cartoperator.h"
#include "FDTD/engine.h"
#include "FDTD/processvoltage.h"
#include "FDTD/processfields_td.h"
#include "ContinuousStructure.h"
@ -35,8 +36,6 @@ int main(int argc, char *argv[])
cop.ShowSize();
// cop.DumpOperator2File("tmp/Operator");
cerr << "Nyquist number of timesteps: " << cop.GetNyquistNum(fmax) << endl;
unsigned int NrIter = cop.GetNyquistNum(fmax)/3;
@ -50,18 +49,26 @@ int main(int argc, char *argv[])
//*************** setup processing ************//
ProcessVoltage PV(&cop,&eng);
PV.OpenFile("tmp/u1");
double start[]={-500,-150,0};
double stop[]={-500,150,0};
double start[]={-0,-75,0};
double stop[]={-0,75,0};
PV.DefineStartStopCoord(start,stop);
unsigned int maxIter = 5000;
ProcessFieldsTD PETD(&cop,&eng);
start[0]=-1000;start[1]=0;start[2]=-1000;
stop[0]=1000;stop[1]=0;stop[2]=1000;
PETD.SetFilePattern("tmp/Et_");
PETD.DefineStartStopCoord(start,stop);
PV.Process();
// NrIter=200;
PETD.Process();
//*************** simulate ************//
for (unsigned int i=0;i<maxIter;i+=NrIter)
{
eng.IterateTS(NrIter);
PV.Process();
PETD.Process();
}
//*************** postproc ************//
@ -89,7 +96,9 @@ void BuildDipol(ContinuousStructure &CSX)
CSPropElectrode* elec = new CSPropElectrode(CSX.GetParameterSet());
elec->SetExcitation(1,1);
elec->SetExcitType(0);
elec->SetExcitType(1);
elec->SetActiveDir(0,0);//disable x
elec->SetActiveDir(0,2);//disable z
// elec->SetDelay(2.0e-9);
CSX.AddProperty(elec);

8
openEMS.pro
View File

@ -22,7 +22,9 @@ SOURCES += main.cpp \
FDTD/operator.cpp \
tools/array_ops.cpp \
FDTD/processvoltage.cpp \
FDTD/processing.cpp
FDTD/processing.cpp \
FDTD/processfields.cpp \
FDTD/processfields_td.cpp
HEADERS += FDTD/cartoperator.h \
tools/ErrorMsg.h \
tools/AdrOp.h \
@ -31,4 +33,6 @@ HEADERS += FDTD/cartoperator.h \
FDTD/operator.h \
tools/array_ops.h \
FDTD/processvoltage.h \
FDTD/processing.h
FDTD/processing.h \
FDTD/processfields.h \
FDTD/processfields_td.h

4
tools/array_ops.cpp
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@ -3,7 +3,7 @@
FDTD_FLOAT*** Create3DArray(unsigned int* numLines)
{
FDTD_FLOAT*** array;
FDTD_FLOAT*** array=NULL;
unsigned int pos[3];
array = new FDTD_FLOAT**[numLines[0]];
for (pos[0]=0;pos[0]<numLines[0];++pos[0])
@ -38,7 +38,7 @@ void Delete3DArray(FDTD_FLOAT*** array, unsigned int* numLines)
FDTD_FLOAT**** Create_N_3DArray(unsigned int* numLines)
{
FDTD_FLOAT**** array;
FDTD_FLOAT**** array=NULL;
array = new FDTD_FLOAT***[3];
for (int n=0;n<3;++n)
{