openEMS/FDTD/operator.h

123 lines
3.5 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/>.
*/
#ifndef OPERATOR_H
#define OPERATOR_H
#include "ContinuousStructure.h"
#include "tools/AdrOp.h"
#include "tools/constants.h"
#define FDTD_FLOAT float
//! Abstract base-class for the FDTD-operator
class Operator
{
public:
Operator();
virtual ~Operator();
virtual bool SetGeometryCSX(ContinuousStructure* geo);
virtual int CalcECOperator();
//! 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
virtual unsigned int CalcSinusExcitation(double f0, int nTS);
//! Calculate a dirac impuls excitation \return number of Nyquist timesteps
virtual unsigned int CalcDiracPulsExcitation();
//! Calculate a step excitation \return number of Nyquist timesteps
virtual unsigned int CalcStepExcitation();
virtual void ApplyElectricBC(bool* dirs); //applied by default to all boundaries
virtual void ApplyMagneticBC(bool* dirs);
double GetTimestep() const {return dT;};
unsigned int GetNyquistNum(double fmax);
double GetNumberCells() const;
void ShowStat() const;
void DumpOperator2File(string filename);
void DumpMaterial2File(string filename);
virtual void Reset();
bool SnapToMesh(double* coord, unsigned int* uicoord, bool lower=false);
protected:
virtual void Init();
virtual void InitOperator();
struct Grid_Path
{
vector<unsigned int> posPath[3];
vector<unsigned short> dir;
};
struct Grid_Path FindPath(double start[], double stop[]);
ContinuousStructure* CSX;
//E-Field Excitation
//! Calc the electric field excitation.
virtual bool CalcEFieldExcitation();
virtual bool CalcPEC();
//Calc timestep only internal use
virtual double CalcTimestep();
double dT; //FDTD timestep!
unsigned int m_nyquistTS;
//EC elements, internal only!
bool Calc_EC();
bool Calc_ECPos(int n, unsigned int* pos, double* inEC);
bool Calc_EffMatPos(int n, unsigned int* pos, double* inMat);
double* EC_C[3];
double* EC_G[3];
double* EC_L[3];
double* EC_R[3];
// engine/post-proc needs access
public:
unsigned int numLines[3];
double* discLines[3];
double gridDelta;
AdrOp* MainOp;
AdrOp* DualOp;
//EC operator
FDTD_FLOAT**** vv; //calc new voltage from old voltage
FDTD_FLOAT**** vi; //calc new voltage from old current
FDTD_FLOAT**** ii; //calc new current from old current
FDTD_FLOAT**** iv; //calc new current from old voltage
//Excitation time-signal
unsigned int ExciteLength;
FDTD_FLOAT* ExciteSignal;
//E-Field Excitation
unsigned int E_Exc_Count;
unsigned int* E_Exc_index[3];
unsigned short* E_Exc_dir;
FDTD_FLOAT* E_Exc_amp; //represented as edge-voltages!!
unsigned int* E_Exc_delay;
};
#endif // OPERATOR_H