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/*
* 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_CYLINDER_H
#define OPERATOR_CYLINDER_H
#define OPERATOR_CYLINDER_CLOSED_ALPHA_THRESHOLD 1e-6
#include "operator_multithread.h"
class Operator_Ext_Cylinder;
//! This class creates an operator for a cylindrical FDTD.
/*!
This class creates an operator for a cylindrical FDTD. No special engine is necessary,
all special cases e.g. a closed alpha mesh or an included r=0 case is treated by an operator/engine extension \sa operator_ext_cylinder.
*/
class Operator_Cylinder : public Operator_Multithread
{
friend class Operator_CylinderMultiGrid;
friend class Operator_Ext_Cylinder;
friend class Operator_Ext_LorentzMaterial;
public:
static Operator_Cylinder* New(unsigned int numThreads = 0);
virtual ~Operator_Cylinder();
virtual void ApplyMagneticBC(bool* dirs);
virtual unsigned int GetNumberOfLines(int ny, bool full=false) const;
//! Get the name for the given direction: 0 -> rho, 1 -> alpha, 2 -> z
virtual string GetDirName(int ny) const;
//! Get the coordinates for a given node index and component, according to the cylindrical yee-algorithm. Returns true if inside the FDTD domain.
virtual bool GetYeeCoords(int ny, unsigned int pos[3], double* coords, bool dualMesh) const;
//! Get the node width for a given direction \a n and a given mesh posisition \a pos
virtual double GetNodeWidth(int ny, const unsigned int pos[3], bool dualMesh = false) const;
//! Get the node width for a given direction \a n and a given mesh posisition \a pos
virtual double GetNodeWidth(int ny, const int pos[3], bool dualMesh = false) const;
//! Get the node area for a given direction \a n and a given mesh posisition \a pos
virtual double GetNodeArea(int n, const unsigned int* pos, bool dualMesh=false) const;
//! Get the node area for a given direction \a n and a given mesh posisition \a pos
virtual double GetNodeArea(int ny, const int pos[3], bool dualMesh = false) const;
//! Get the length of an FDTD edge, including radius corrected alpha-mesh width.
virtual double GetEdgeLength(int ny, const unsigned int pos[3], bool dualMesh = false) const;
//! Get the volume of an FDTD cell
virtual double GetCellVolume(const unsigned int pos[3], bool dualMesh = false) const;
//! Get the area around an edge for a given direction \a n and a given mesh posisition \a pos
/*!
This will return the area around an edge with a given direction, measured at the middle of the edge.
In a cartesian mesh this is equal to the NodeArea, may be different in other coordinate systems.
*/
virtual double GetEdgeArea(int ny, const unsigned int pos[3], bool dualMesh = false) const;
virtual double FitToAlphaRange(double a_coord, bool fullMesh=false) const;
//! Map a negative or out of range index in alpha direction back into the closed alpha mesh
virtual int MapAlphaIndex2Range(int pos) const;
virtual bool GetCellCenterMaterialAvgCoord(const int pos[3], double coord[3]) const;
virtual unsigned int SnapToMeshLine(int ny, double coord, bool &inside, bool dualMesh=false, bool fullMesh=false) const;
//! Snap a given box to the FDTD mesh
virtual int SnapBox2Mesh(const double* start, const double* stop, unsigned int* uiStart, unsigned int* uiStop, bool dualMesh=false, bool fullMesh=false, int SnapMethod=0, bool* bStartIn=NULL, bool* bStopIn=NULL) const;
virtual int SnapLine2Mesh(const double* start, const double* stop, unsigned int* uiStart, unsigned int* uiStop, bool dualMesh=false, bool fullMesh=false) const;
bool GetClosedAlpha() const {return CC_closedAlpha;}
bool GetR0Included() const {return CC_R0_included;}
virtual void AddExtension(Operator_Extension* op_ext);
virtual Engine* CreateEngine();
protected:
Operator_Cylinder();
virtual void Init();
virtual bool SetupCSXGrid(CSRectGrid* grid);
virtual Grid_Path FindPath(double start[], double stop[]);
virtual double GetRawDiscDelta(int ny, const int pos) const;
virtual double GetMaterial(int ny, const double coords[3], int MatType, vector<CSPrimitives*> vPrims, bool markAsUsed=true) const;
virtual int CalcECOperator( DebugFlags debugFlags = None );
virtual double CalcTimestep();
bool CC_closedAlpha;
bool CC_R0_included;
Operator_Ext_Cylinder* m_Cyl_Ext;
#ifdef MPI_SUPPORT
bool CC_MPI_Alpha;
#endif
};
#endif // OPERATOR_CYLINDER_H
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