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nf2ff: add boundary mirroring 

Signed-off-by: Thorsten Liebig <Thorsten.Liebig@gmx.de>
pull/13/head
Thorsten Liebig 2014-10-09 21:20:31 +02:00
parent 22d526f0ee
commit 9ef6510d3e
7 changed files with 205 additions and 21 deletions
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14
matlab/CalcNF2FF.m
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@ -30,6 +30,11 @@ function nf2ff = CalcNF2FF(nf2ff, Sim_Path, freq, theta, phi, varargin)
% 'Mue_r': specify the relative magnetic permeability for the nf2ff
% 'MPI' : set true if MPI was used
%
% 'Mirror': Add mirroring in a given direction (dir), with a given
% mirror type (PEC or PMC) and a mirror position in the given
% direction.
% Example: 'Mirror', {0, 'PMC', +100}
%
% See also: CreateNF2FFBox, ReadNF2FF
%
% openEMS matlab interface
@ -56,6 +61,15 @@ for n=1:2:numel(varargin)-1
mode = varargin{n+1};
elseif (strcmp(varargin{n},'MPI'))
MPI = varargin{n+1};
elseif (strcmp(varargin{n},'Mirror'))
if isfield(nf2ff_xml,'Mirror')
pos = length(nf2ff_xml.Mirror)+1;
else
pos = 1;
end
nf2ff_xml.Mirror{pos}.ATTRIBUTE.Dir=varargin{n+1}{1};
nf2ff_xml.Mirror{pos}.ATTRIBUTE.Type=varargin{n+1}{2};
nf2ff_xml.Mirror{pos}.ATTRIBUTE.Pos=varargin{n+1}{3};
else
nf2ff_xml.ATTRIBUTE.(varargin{n})=varargin{n+1};
end

4
nf2ff/main.cpp
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@ -1,5 +1,5 @@
/*
* Copyright (C) 2012 Thorsten Liebig (Thorsten.Liebig@gmx.de)
* Copyright (C) 2012-2014 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
@ -25,7 +25,7 @@ int main(int argc, char *argv[])
{
cout << " ---------------------------------------------------------------------- " << endl;
cout << " | nf2ff, near-field to far-field transformation for openEMS " << endl;
cout << " | (C) 2012 Thorsten Liebig <thorsten.liebig@gmx.de> GPL license" << endl;
cout << " | (C) 2012-2014 Thorsten Liebig <thorsten.liebig@gmx.de> GPL license" << endl;
cout << " ---------------------------------------------------------------------- " << endl;
if (argc<=1)

30
nf2ff/nf2ff.cpp
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@ -1,5 +1,5 @@
/*
* Copyright (C) 2012 Thorsten Liebig (Thorsten.Liebig@gmx.de)
* Copyright (C) 2012-2014 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
@ -121,7 +121,14 @@ void nf2ff::SetPermeability(vector<float> permeability)
}
for (size_t fn=0;fn<m_nf2ff.size();++fn)
m_nf2ff.at(fn)->SetPermeability(permeability.at(fn));
}
void nf2ff::SetMirror(int type, int dir, float pos)
{
if (m_Verbose>0)
cerr << "Enable mirror of type: "<< type << " in direction: " << dir << " at: " << pos << endl;
for (size_t fn=0;fn<m_nf2ff.size();++fn)
m_nf2ff.at(fn)->SetMirror(type, dir, pos);
}
bool nf2ff::AnalyseXMLNode(TiXmlElement* ti_nf2ff)
@ -224,7 +231,26 @@ bool nf2ff::AnalyseXMLNode(TiXmlElement* ti_nf2ff)
if (ti_nf2ff->QueryFloatAttribute("Radius",&radius) == TIXML_SUCCESS)
l_nf2ff->SetRadius(radius);
TiXmlElement* ti_Planes = ti_nf2ff->FirstChildElement();
// read mirrors
TiXmlElement* ti_Mirros = ti_nf2ff->FirstChildElement("Mirror");
int dir=-1;
string type;
float pos=0.0;
while (ti_Mirros!=NULL)
{
type = string(ti_Mirros->Attribute("Type"));
if (ti_Mirros->QueryIntAttribute("Dir",&dir) != TIXML_SUCCESS)
dir = -1;
if (ti_Mirros->QueryFloatAttribute("Pos",&pos) != TIXML_SUCCESS)
dir = -1;
if ((dir>=0) && (strcmp(type.c_str(),"PEC")==0))
l_nf2ff->SetMirror(MIRROR_PEC, dir, pos);
else if ((dir>=0) && (strcmp(type.c_str(),"PMC")==0))
l_nf2ff->SetMirror(MIRROR_PMC, dir, pos);
ti_Mirros = ti_Mirros->NextSiblingElement("Mirror");
}
TiXmlElement* ti_Planes = ti_nf2ff->FirstChildElement("Planes");
string E_name;
string H_name;
while (ti_Planes!=NULL)

4
nf2ff/nf2ff.h
View File

@ -1,5 +1,5 @@
/*
* Copyright (C) 2012 Thorsten Liebig (Thorsten.Liebig@gmx.de)
* Copyright (C) 2012-2014 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
@ -40,6 +40,8 @@ public:
void SetRadius(float radius);
void SetPermittivity(vector<float> permittivity);
void SetPermeability(vector<float> permeability);
void SetMirror(int type, int dir, float pos);
double GetTotalRadPower(size_t f_idx) const {return m_nf2ff.at(f_idx)->GetTotalRadPower();}
double GetMaxDirectivity(size_t f_idx) const {return m_nf2ff.at(f_idx)->GetMaxDirectivity();}

134
nf2ff/nf2ff_calc.cpp
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@ -1,5 +1,5 @@
/*
* Copyright (C) 2012 Thorsten Liebig (Thorsten.Liebig@gmx.de)
* Copyright (C) 2012-2014 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
@ -200,6 +200,12 @@ nf2ff_calc::nf2ff_calc(float freq, vector<float> theta, vector<float> phi, vecto
m_maxDir = 0;
m_radius = 1;
for (int n=0;n<3;++n)
{
m_MirrorType[n] = MIRROR_OFF;
m_MirrorPos[n] = 0.0;
}
m_Barrier = NULL;
m_numThreads = boost::thread::hardware_concurrency();
}
@ -227,9 +233,8 @@ nf2ff_calc::~nf2ff_calc()
m_Barrier = NULL;
}
bool nf2ff_calc::AddPlane(float **lines, unsigned int* numLines, complex<float>**** E_field, complex<float>**** H_field, int MeshType)
int nf2ff_calc::GetNormalDir(unsigned int* numLines)
{
//find normal direction
int ny = -1;
int nP,nPP;
for (int n=0;n<3;++n)
@ -239,13 +244,116 @@ bool nf2ff_calc::AddPlane(float **lines, unsigned int* numLines, complex<float>*
if ((numLines[n]==1) && (numLines[nP]>2) && (numLines[nPP]>2))
ny=n;
}
nP = (ny+1)%3;
nPP = (ny+2)%3;
return ny;
}
void nf2ff_calc::SetMirror(int type, int dir, float pos)
{
if ((dir<0) || (dir>3))
{
cerr << "nf2ff_calc::SetMirror: Error, invalid direction!" << endl;
return;
}
if ((type!=MIRROR_PEC) && (type!=MIRROR_PMC))
{
cerr << "nf2ff_calc::SetMirror: Error, invalid type!" << endl;
return;
}
m_MirrorType[dir] = type;
m_MirrorPos[dir] = pos;
}
bool nf2ff_calc::AddMirrorPlane(int n, float **lines, unsigned int* numLines, complex<float>**** E_field, complex<float>**** H_field, int MeshType)
{
float E_factor[3] = {1,1,1};
float H_factor[3] = {1,1,1};
int nP = (n+1)%3;
int nPP = (n+2)%3;
// mirror in ny direction
for (unsigned int i=0;i<numLines[n];++i)
lines[n][i] = 2.0*m_MirrorPos[n] - lines[n][i];
if (m_MirrorType[n]==MIRROR_PEC)
{
H_factor[n] =-1.0;
E_factor[nP] =-1.0;
E_factor[nPP]=-1.0;
}
else if (m_MirrorType[n]==MIRROR_PMC)
{
E_factor[n] = -1.0;
H_factor[nP] = -1.0;
H_factor[nPP]= -1.0;
}
for (int d=0;d<3;++d)
for (unsigned int i=0;i<numLines[0];++i)
for (unsigned int j=0;j<numLines[1];++j)
for (unsigned int k=0;k<numLines[2];++k)
{
E_field[d][i][j][k] *= E_factor[d];
H_field[d][i][j][k] *= H_factor[d];
}
return this->AddSinglePlane(lines, numLines, E_field, H_field, MeshType);
}
bool nf2ff_calc::AddPlane(float **lines, unsigned int* numLines, complex<float>**** E_field, complex<float>**** H_field, int MeshType)
{
this->AddSinglePlane(lines, numLines, E_field, H_field, MeshType);
for (int n=0;n<3;++n)
{
int nP = (n+1)%3;
int nPP = (n+2)%3;
// check if a single mirror plane is on
if ((m_MirrorType[n]!=MIRROR_OFF) && (m_MirrorType[nP]==MIRROR_OFF) && (m_MirrorType[nPP]==MIRROR_OFF))
{
cerr << "single plane in " << n << endl;
this->AddMirrorPlane(n, lines, numLines, E_field, H_field, MeshType);
break;
}
//check if two planes are on
else if ((m_MirrorType[n]==MIRROR_OFF) && (m_MirrorType[nP]!=MIRROR_OFF) && (m_MirrorType[nPP]!=MIRROR_OFF))
{
cerr << "two planes in " << nP << " and " << nPP << endl;
this->AddMirrorPlane(nP, lines, numLines, E_field, H_field, MeshType);
this->AddMirrorPlane(nPP, lines, numLines, E_field, H_field, MeshType);
this->AddMirrorPlane(nP, lines, numLines, E_field, H_field, MeshType);
break;
}
}
// check if all planes are on
if ((m_MirrorType[0]!=MIRROR_OFF) && (m_MirrorType[1]!=MIRROR_OFF) && (m_MirrorType[2]!=MIRROR_OFF))
{
cerr << "all three planes on " << endl;
this->AddMirrorPlane(0, lines, numLines, E_field, H_field, MeshType);
this->AddMirrorPlane(1, lines, numLines, E_field, H_field, MeshType);
this->AddMirrorPlane(0, lines, numLines, E_field, H_field, MeshType);
this->AddMirrorPlane(2, lines, numLines, E_field, H_field, MeshType);
this->AddMirrorPlane(0, lines, numLines, E_field, H_field, MeshType);
this->AddMirrorPlane(1, lines, numLines, E_field, H_field, MeshType);
this->AddMirrorPlane(0, lines, numLines, E_field, H_field, MeshType);
}
//cleanup E- & H-Fields
Delete_N_3DArray(E_field,numLines);
Delete_N_3DArray(H_field,numLines);
return true;
}
bool nf2ff_calc::AddSinglePlane(float **lines, unsigned int* numLines, complex<float>**** E_field, complex<float>**** H_field, int MeshType)
{
//find normal direction
int ny = this->GetNormalDir(numLines);
if (ny<0)
{
cerr << "nf2ff_calc::AddPlane: Error can't determine normal direction..." << endl;
return false;
}
int nP = (ny+1)%3;
int nPP = (ny+2)%3;
complex<float>**** Js = Create_N_3DArray<complex<float> >(numLines);
complex<float>**** Ms = Create_N_3DArray<complex<float> >(numLines);
@ -259,15 +367,15 @@ bool nf2ff_calc::AddPlane(float **lines, unsigned int* numLines, complex<float>*
float edge_length_P[numLines[nP]];
for (unsigned int n=1;n<numLines[nP]-1;++n)
edge_length_P[n]=0.5*(lines[nP][n+1]-lines[nP][n-1]);
edge_length_P[0]=0.5*(lines[nP][1]-lines[nP][0]);
edge_length_P[numLines[nP]-1]=0.5*(lines[nP][numLines[nP]-1]-lines[nP][numLines[nP]-2]);
edge_length_P[n]=0.5*fabs(lines[nP][n+1]-lines[nP][n-1]);
edge_length_P[0]=0.5*fabs(lines[nP][1]-lines[nP][0]);
edge_length_P[numLines[nP]-1]=0.5*fabs(lines[nP][numLines[nP]-1]-lines[nP][numLines[nP]-2]);
float edge_length_PP[numLines[nPP]];
for (unsigned int n=1;n<numLines[nPP]-1;++n)
edge_length_PP[n]=0.5*(lines[nPP][n+1]-lines[nPP][n-1]);
edge_length_PP[0]=0.5*(lines[nPP][1]-lines[nPP][0]);
edge_length_PP[numLines[nPP]-1]=0.5*(lines[nPP][numLines[nPP]-1]-lines[nPP][numLines[nPP]-2]);
edge_length_PP[n]=0.5*fabs(lines[nPP][n+1]-lines[nPP][n-1]);
edge_length_PP[0]=0.5*fabs(lines[nPP][1]-lines[nPP][0]);
edge_length_PP[numLines[nPP]-1]=0.5*fabs(lines[nPP][numLines[nPP]-1]-lines[nPP][numLines[nPP]-2]);
//check for cylindrical mesh
if (MeshType==1)
@ -342,10 +450,6 @@ bool nf2ff_calc::AddPlane(float **lines, unsigned int* numLines, complex<float>*
m_Barrier->wait(); //combine all thread local Nt,Np,Lt and Lp
//cleanup E- & H-Fields
Delete_N_3DArray(E_field,numLines);
Delete_N_3DArray(H_field,numLines);
complex<float>** Nt = Create2DArray<complex<float> >(numAngles);
complex<float>** Np = Create2DArray<complex<float> >(numAngles);
complex<float>** Lt = Create2DArray<complex<float> >(numAngles);

17
nf2ff/nf2ff_calc.h
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@ -1,5 +1,5 @@
/*
* Copyright (C) 2012 Thorsten Liebig (Thorsten.Liebig@gmx.de)
* Copyright (C) 2012-2014 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
@ -29,6 +29,10 @@ using namespace std;
class nf2ff_calc;
#define MIRROR_OFF 0
#define MIRROR_PEC 1
#define MIRROR_PMC 2
// data structure to exchange data between thread-controller and worker-threads
typedef struct
{
@ -89,6 +93,8 @@ public:
unsigned int GetNumThreads() const {return m_numThreads;}
void SetNumThreads(unsigned int n) {m_numThreads=n;}
void SetMirror(int type, int dir, float pos);
bool AddPlane(float **lines, unsigned int* numLines, complex<float>**** E_field, complex<float>**** H_field, int MeshType=0);
protected:
@ -113,6 +119,15 @@ protected:
float* m_theta;
float* m_phi;
//mirror settings
bool m_EnableMirror;
int m_MirrorType[3];
float m_MirrorPos[3];
int GetNormalDir(unsigned int* numLines);
bool AddSinglePlane(float **lines, unsigned int* numLines, complex<float>**** E_field, complex<float>**** H_field, int MeshType=0);
bool AddMirrorPlane(int n, float **lines, unsigned int* numLines, complex<float>**** E_field, complex<float>**** H_field, int MeshType=0);
//boost multi-threading
unsigned int m_numThreads;
boost::thread_group m_thread_group;

23
tools/array_ops.h
View File

@ -114,6 +114,19 @@ T*** Create3DArray(const unsigned int* numLines)
return array;
}
template <typename T>
T*** Copy3DArray(T*** array_in, T*** array_out, const unsigned int* numLines)
{
if (array_out==NULL)
array_out = Create3DArray<T>(numLines);
unsigned int pos[3];
for (pos[0]=0; pos[0]<numLines[0]; ++pos[0])
for (pos[1]=0; pos[1]<numLines[1]; ++pos[1])
for (pos[2]=0; pos[2]<numLines[2]; ++pos[2])
array_out[pos[0]][pos[1]][pos[2]] = array_in[pos[0]][pos[1]][pos[2]];
return array_out;
}
template <typename T>
T**** Create_N_3DArray(const unsigned int* numLines)
{
@ -126,6 +139,16 @@ T**** Create_N_3DArray(const unsigned int* numLines)
return array;
}
template <typename T>
T**** Copy_N_3DArray(T**** array_in, T**** array_out, const unsigned int* numLines)
{
if (array_out==NULL)
array_out = Create_N_3DArray<T>(numLines);
for (int n=0; n<3; ++n)
array_out[n]=Copy3DArray<T>( array_in[n], array_out[n], numLines);
return array_out;
}
template <typename T>
void Delete3DArray(T*** array, const unsigned int* numLines)
{