openEMS/FDTD/processcurrent.cpp

99 lines
3.2 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 "processcurrent.h"
#include <iomanip>
ProcessCurrent::ProcessCurrent(Operator* op, Engine* eng) : Processing(op, eng)
{
}
ProcessCurrent::~ProcessCurrent()
{
}
void ProcessCurrent::OpenFile(string outfile)
{
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 ProcessCurrent::DefineStartStopCoord(double* dstart, double* dstop)
{
if (Op->SnapToMesh(dstart,start,true,m_start_inside)==false) cerr << "ProcessCurrent::DefineStartStopCoord: Warning: Snapped line outside field domain!!" << endl;
if (Op->SnapToMesh(dstop,stop,true,m_stop_inside)==false) cerr << "ProcessCurrent::DefineStartStopCoord: Warning: Snapped line outside field domain!!" << endl;
}
int ProcessCurrent::Process()
{
FDTD_FLOAT**** curr = Eng->GetCurrents();
if (Enabled==false) return -1;
if (CheckTimestep()==false) return GetNextInterval();
FDTD_FLOAT current=0;
for (int n=0;n<3;++n)
{
if (start[n]>stop[n])
{
unsigned int help=start[n];
start[n]=stop[n];
stop[n]=help;
bool b_help=m_start_inside[n];
m_start_inside[n] = m_stop_inside[n];
m_stop_inside[n] = b_help;
}
if (m_stop_inside[n]==false) // integrate up to the wall, Operator::SnapToMesh would give numLines[n]-2
stop[n]=Op->GetNumberOfLines(n)-1;
}
//x-current
if (m_start_inside[1] && m_start_inside[2])
for (unsigned int i=start[0];i<stop[0];++i)
current+=curr[0][i][start[1]][start[2]];
//y-current
if (m_stop_inside[0] && m_start_inside[2])
for (unsigned int i=start[1];i<stop[1];++i)
current+=curr[1][stop[0]][i][start[2]];
//z-current
if (m_stop_inside[0] && m_stop_inside[1])
for (unsigned int i=start[2];i<stop[2];++i)
current+=curr[2][stop[0]][stop[1]][i];
//x-current
if (m_stop_inside[1] && m_stop_inside[2])
for (unsigned int i=start[0];i<stop[0];++i)
current-=curr[0][i][stop[1]][stop[2]];
//y-current
if (m_start_inside[0] && m_stop_inside[2])
for (unsigned int i=start[1];i<stop[1];++i)
current-=curr[1][start[0]][i][stop[2]];
//z-current
if (m_start_inside[0] && m_start_inside[1])
for (unsigned int i=start[2];i<stop[2];++i)
current-=curr[2][start[0]][start[1]][i];
// cerr << "ts: " << Eng->numTS << " i: " << current << endl;
v_current.push_back(current);
//current is sampled half a timestep later then the voltages
file << setprecision(m_precision) << (0.5 + (double)Eng->GetNumberOfTimesteps())*Op->GetTimestep() << "\t" << current << endl;
return GetNextInterval();
}