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new excitation: Custom excite and some excitation related code-cleanup

pull/1/head
Thorsten Liebig 2010-04-07 16:31:23 +02:00
parent fc600f53ba
commit 9ae8ac12ab
6 changed files with 89 additions and 70 deletions
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30
FDTD/operator.cpp
View File

@ -19,6 +19,7 @@
#include "operator.h"
#include "processfields.h"
#include "tools/array_ops.h"
#include "fparser.hh"
Operator::Operator()
{
@ -289,6 +290,35 @@ unsigned int Operator::CalcStepExcitation()
return 1;
}
unsigned int Operator::CalcCustomExcitation(double f0, int nTS, string signal)
{
if (dT==0) return 0;
if (nTS<=0) return 0;
ExciteLength = (unsigned int)(nTS);
// cerr << "Operator::CalcSinusExcitation: Length of the excite signal: " << ExciteLength << " timesteps" << endl;
delete[] ExciteSignal;
ExciteSignal = new FDTD_FLOAT[ExciteLength+1];
ExciteSignal[0]=0.0;
FunctionParser fParse;
fParse.AddConstant("pi", 3.14159265358979323846);
fParse.AddConstant("e", 2.71828182845904523536);
fParse.Parse(signal,"t");
if (fParse.GetParseErrorType()!=FunctionParser::FP_NO_ERROR)
{
cerr << "Operator::CalcCustomExcitation: Function Parser error: " << fParse.ErrorMsg() << endl;
exit(1);
}
double vars[1];
for (unsigned int n=1;n<ExciteLength+1;++n)
{
vars[0] = (n-1)*GetTimestep();
ExciteSignal[n] = fParse.Eval(vars);
// cerr << ExciteSignal[n] << endl;
}
return CalcNyquistNum(f0);
}
unsigned int Operator::CalcSinusExcitation(double f0, int nTS)
{
if (dT==0) return 0;

2
FDTD/operator.h
View File

@ -35,6 +35,8 @@ public:
virtual int CalcECOperator();
//! Calculate a custom signal \return number of Nyquist timesteps defined by f0
virtual unsigned int CalcCustomExcitation(double f0, int nTS, string signal);
//! Calculate an excitation with center of f0 and the half bandwidth fc \return number of Nyquist timesteps
virtual unsigned int CalcGaussianPulsExcitation(double f0, double fc);
//! Calculate a sinusoidal excitation with frequency f0 and a duration of nTS number of timesteps \return number of Nyquist timesteps

5
matlab/SetCustomExcite.m Normal file
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@ -0,0 +1,5 @@
function FDTD = SetCustomExcite(FDTD,f0,funcStr);
FDTD.Excitation.ATTRIBUTE.Type=10;
FDTD.Excitation.ATTRIBUTE.f0=f0;
FDTD.Excitation.ATTRIBUTE.Function=funcStr;

1
openEMS.pro
View File

@ -8,6 +8,7 @@ CONFIG -= app_bundle
TEMPLATE = app
OBJECTS_DIR = obj
INCLUDEPATH += ../CSXCAD \
../fparser \
../tinyxml
LIBS += -L../CSXCAD \
-lCSXCAD \

119
openems.cpp
View File

@ -108,13 +108,55 @@ bool openEMS::parseCommandLineArgument( const char *argv )
return false;
}
void openEMS::SetupExcitation(TiXmlElement* Excite)
{
if (Excite==NULL)
{
cerr << "Can't read openEMS Excitation Settings... " << endl;
exit(-2);
}
int Excit_Type=0;
double f0=0;
double fc=0;
Excite->QueryIntAttribute("Type",&Excit_Type);
unsigned int Nyquist = 0;
switch (Excit_Type)
{
case 0:
Excite->QueryDoubleAttribute("f0",&f0);
Excite->QueryDoubleAttribute("fc",&fc);
Nyquist = FDTD_Op->CalcGaussianPulsExcitation(f0,fc);
break;
case 1:
Excite->QueryDoubleAttribute("f0",&f0);
Nyquist = FDTD_Op->CalcSinusExcitation(f0,NrTS);
break;
case 2:
Nyquist = FDTD_Op->CalcDiracPulsExcitation();
break;
case 3:
Nyquist = FDTD_Op->CalcStepExcitation();
break;
case 10:
Excite->QueryDoubleAttribute("f0",&f0);
Nyquist = FDTD_Op->CalcCustomExcitation(f0,NrTS,Excite->Attribute("Function"));
break;
}
if (!Nyquist)
{
cerr << "openEMS: excitation setup failed!!" << endl;
exit(2);
}
FDTD_Op->SetNyquistNum(Nyquist);
}
int openEMS::SetupFDTD(const char* file)
{
if (file==NULL) return -1;
Reset();
double f0=0;
double fc=0;
int Excit_Type=0;
int bounds[6];
time_t startTime=time(NULL);
@ -135,6 +177,7 @@ int openEMS::SetupFDTD(const char* file)
}
TiXmlElement* FDTD_Opts = openEMSxml->FirstChildElement("FDTD");
if (FDTD_Opts==NULL)
{
cerr << "Can't read openEMS FDTD Settings... " << endl;
@ -146,6 +189,7 @@ int openEMS::SetupFDTD(const char* file)
NrTS=0;
else
NrTS = help;
FDTD_Opts->QueryDoubleAttribute("endCriteria",&endCrit);
if (endCrit==0)
endCrit=1e-6;
@ -154,29 +198,6 @@ int openEMS::SetupFDTD(const char* file)
if (m_OverSampling<2)
m_OverSampling=2;
TiXmlElement* Excite = FDTD_Opts->FirstChildElement("Excitation");
if (Excite==NULL)
{
cerr << "Can't read openEMS Excitation Settings... " << endl;
exit(-2);
}
Excite->QueryIntAttribute("Type",&Excit_Type);
if (Excit_Type==0)
{
Excite->QueryDoubleAttribute("f0",&f0);
Excite->QueryDoubleAttribute("fc",&fc);
}
else if (Excit_Type==1)
{
Excite->QueryDoubleAttribute("f0",&f0);
fc = 0;
}
else if (Excit_Type==2)
{
Excite->QueryDoubleAttribute("f0",&f0);
fc = 0;
}
TiXmlElement* BC = FDTD_Opts->FirstChildElement("BoundaryCond");
if (BC==NULL)
{
@ -209,50 +230,8 @@ int openEMS::SetupFDTD(const char* file)
if (FDTD_Op->SetGeometryCSX(&CSX)==false) return(-1);
FDTD_Op->CalcECOperator();
unsigned int Nyquist = 0;
if (Excit_Type==0)
{
Nyquist = FDTD_Op->CalcGaussianPulsExcitation(f0,fc);
if (!Nyquist)
{
cerr << "openEMS: excitation setup failed!!" << endl;
exit(2);
}
}
else if (Excit_Type==1)
{
Nyquist = FDTD_Op->CalcSinusExcitation(f0,NrTS);
if (!Nyquist)
{
cerr << "openEMS: excitation setup failed!!" << endl;
exit(2);
}
}
else if (Excit_Type==2)
{
Nyquist = FDTD_Op->CalcDiracPulsExcitation();
if (!Nyquist)
{
cerr << "openEMS: excitation setup failed!!" << endl;
exit(2);
}
}
else if (Excit_Type==3)
{
Nyquist = FDTD_Op->CalcStepExcitation();
if (!Nyquist)
{
cerr << "openEMS: excitation setup failed!!" << endl;
exit(2);
}
}
else
{
cerr << "openEMS: Excitation type is unknown" << endl;
exit(-1);
}
FDTD_Op->SetNyquistNum(Nyquist);
SetupExcitation(FDTD_Opts->FirstChildElement("Excitation"));
if (DebugMat)
{
@ -281,11 +260,11 @@ int openEMS::SetupFDTD(const char* file)
break;
}
time_t currTime = time(NULL);
//*************** setup processing ************//
cout << "Setting up processing..." << endl;
unsigned int Nyquist = FDTD_Op->GetNyquistNum();
PA = new ProcessingArray(Nyquist);
double start[3];

2
openems.h
View File

@ -21,6 +21,7 @@
class Operator;
class Engine;
class ProcessingArray;
class TiXmlElement;
class openEMS
{
@ -43,6 +44,7 @@ public:
void DebugOperator() {DebugOp=true;}
protected:
void SetupExcitation(TiXmlElement* Excite);
//! Number of Timesteps
unsigned int NrTS;
bool Enable_Dumps;