openEMS/FDTD/processintegral.cpp

99 lines
2.3 KiB
C++

/*
* Copyright (C) 2010 Thorsten Liebig (Thorsten.Liebig@gmx.de)
*
* 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 "processintegral.h"
#include <iomanip>
ProcessIntegral::ProcessIntegral(Operator* op, Engine* eng) : Processing(op, eng)
{
m_TimeShift = 0.0;
m_Results=NULL;
}
ProcessIntegral::~ProcessIntegral()
{
delete[] m_Results;
m_Results = NULL;
ProcessIntegral::FlushData();
}
void ProcessIntegral::InitProcess()
{
m_filename = m_Name;
OpenFile(m_filename);
FD_Values.clear();
for (size_t n=0;n<m_FD_Samples.size();++n)
FD_Values.push_back(0);
}
void ProcessIntegral::FlushData()
{
if (m_FD_Samples.size())
Dump_FD_Data(FD_Values,1.0/(double)m_FD_SampleCount,m_filename + "_FD");
}
int ProcessIntegral::Process()
{
if (Enabled==false) return -1;
if (CheckTimestep()==false) return GetNextInterval();
CalcMultipleIntegrals();
int NrInt = GetNumberOfIntegrals();
double integral = m_Results[0] * m_weight;
double time = (double)Eng->GetNumberOfTimesteps()*Op->GetTimestep() + m_TimeShift;
if (ProcessInterval)
{
if (Eng->GetNumberOfTimesteps()%ProcessInterval==0)
{
TD_Values.push_back(integral);
file << setprecision(m_precision) << time;
for (int n=0;n<NrInt;++n)
file << "\t" << m_Results[n] * m_weight;
file << endl;
}
}
if (m_FD_Interval)
{
if (Eng->GetNumberOfTimesteps()%m_FD_Interval==0)
{
double T = time;
for (size_t n=0;n<m_FD_Samples.size();++n)
{
FD_Values.at(n) += (double)integral * std::exp( -2.0 * _I * M_PI * m_FD_Samples.at(n) * T );
}
++m_FD_SampleCount;
if (m_Flush)
FlushData();
m_Flush = false;
}
}
return GetNextInterval();
}
double* ProcessIntegral::CalcMultipleIntegrals()
{
if (m_Results==NULL)
m_Results = new double[1];
m_Results[0] = CalcIntegral();
return m_Results;
}