diff --git a/Plugin/NearToFarField.cpp b/Plugin/NearToFarField.cpp
index ea7367badc259abfcb9dbb5b4e27874e44c7e6db..25b11068ee84ab338102272a1e8ef5fa6e548622 100644
--- a/Plugin/NearToFarField.cpp
+++ b/Plugin/NearToFarField.cpp
@@ -25,6 +25,10 @@ StringXNumber NearToFarFieldOptions_Number[] = {
{GMSH_FULLRC, "NegativeTime", NULL, 0.},
};
+StringXString NearToFarFieldOptions_String[] = {
+ {GMSH_FULLRC, "MatlabOutputFile", NULL, "farfield.m"},
+};
+
extern "C"
{
GMSH_Plugin *GMSH_RegisterNearToFarFieldPlugin()
@@ -45,7 +49,8 @@ std::string GMSH_NearToFarFieldPlugin::getHelp() const
"is normalized to 1. If `dB' is set, the far field is computed in dB. "
"If `NegativeTime' is set, E and H are assumed to have exp(-iwt) time "
"dependency; otherwise they are assume to have exp(+iwt) time "
- "dependency.\n\n"
+ "dependency. If `MatlabOutputFile' is given the raw far field data is "
+ "also exported in Matlab format.\n\n"
"Plugin(NearToFarField) creates one new view.";
}
@@ -54,11 +59,21 @@ int GMSH_NearToFarFieldPlugin::getNbOptions() const
return sizeof(NearToFarFieldOptions_Number) / sizeof(StringXNumber);
}
+int GMSH_NearToFarFieldPlugin::getNbOptionsStr() const
+{
+ return sizeof(NearToFarFieldOptions_String) / sizeof(StringXString);
+}
+
StringXNumber *GMSH_NearToFarFieldPlugin::getOption(int iopt)
{
return &NearToFarFieldOptions_Number[iopt];
}
+StringXString *GMSH_NearToFarFieldPlugin::getOptionStr(int iopt)
+{
+ return &NearToFarFieldOptions_String[iopt];
+}
+
// Compute field using e^{j\omega t} time dependency, following Jin in "Finite
// Element Analysis of Antennas and Arrays", p. 176. This is not the usual `far
// field', as it still contains the e^{ikr}/r factor.
@@ -217,6 +232,16 @@ double GMSH_NearToFarFieldPlugin::getFarFieldMonk(std::vector<element*> &allElem
return (norm(einf[0]) + norm(einf[1]) + norm(einf[2]));
}
+static void printVector(FILE *fp, const std::string &name,
+ std::vector<std::vector<double> > &vec)
+{
+ fprintf(fp, "%s = [", name.c_str());
+ for (unsigned int i = 0; i < vec.size(); i++)
+ for (unsigned int j = 0; j < vec[i].size(); j++)
+ fprintf(fp, "%.16g ", vec[i][j]);
+ fprintf(fp, "];\n");
+}
+
PView *GMSH_NearToFarFieldPlugin::execute(PView * v)
{
double _k0 = (double)NearToFarFieldOptions_Number[0].def;
@@ -232,6 +257,8 @@ PView *GMSH_NearToFarFieldPlugin::execute(PView * v)
bool _dB = (bool)NearToFarFieldOptions_Number[10].def;
int _negativeTime = (int)NearToFarFieldOptions_Number[11].def;
+ std::string _outFile = NearToFarFieldOptions_String[0].def;
+
PView *ve = getView(_eView, v);
if(!ve){
Msg::Error("NearToFarField plugin could not find EView %i", _eView);
@@ -257,12 +284,13 @@ PView *GMSH_NearToFarFieldPlugin::execute(PView * v)
return v;
}
- // center of the Far Field sphere
+ // center and radius of the visualization sphere
SBoundingBox3d bbox = eData->getBoundingBox();
double x0 = bbox.center().x();
double y0 = bbox.center().y();
double z0 = bbox.center().z();
double lc = norm(SVector3(bbox.max(), bbox.min()));
+ double r_sph = lc ? lc / 2. : 1;
if(x0 != hData->getBoundingBox().center().x() ||
y0 != hData->getBoundingBox().center().y() ||
@@ -321,87 +349,104 @@ PView *GMSH_NearToFarFieldPlugin::execute(PView * v)
return v;
}
- // View for far field that will contain the radiation pattern
+ // view for far field that will contain the radiation pattern
PView *vf = new PView();
PViewDataList *dataFar = getDataList(vf);
- std::vector<std::vector<double> > allPhi(_NbPhi + 1);
- std::vector<std::vector<double> > allThe(_NbPhi + 1);
- std::vector<std::vector<double> > farF(_NbPhi + 1);
+ std::vector<std::vector<double> > phi(_NbPhi + 1), theta(_NbPhi + 1);
+ std::vector<std::vector<double> > x(_NbPhi + 1), y(_NbPhi + 1), z(_NbPhi + 1);
+ std::vector<std::vector<double> > farField(_NbPhi + 1);
for (int i = 0; i <= _NbPhi; i++){
- allPhi[i].resize(_NbThe + 1);
- allThe[i].resize(_NbThe + 1);
- farF[i].resize(_NbThe + 1);
+ phi[i].resize(_NbThe + 1);
+ theta[i].resize(_NbThe + 1);
+ x[i].resize(_NbThe + 1);
+ y[i].resize(_NbThe + 1);
+ z[i].resize(_NbThe + 1);
+ farField[i].resize(_NbThe + 1);
}
- double dPhi = (_phiEnd - _phiStart) / _NbPhi ;
+ double dPhi = (_phiEnd - _phiStart) / _NbPhi ;
double dTheta = (_thetaEnd - _thetaStart) / _NbThe ;
double ffmax = 0.0 ;
Msg::ResetProgressMeter();
for (int i = 0; i <= _NbPhi; i++){
- double phi = _phiStart + i * dPhi ;
for (int j = 0; j <= _NbThe; j++){
- double theta = _thetaStart + j * dTheta ;
- allPhi[i][j] = phi ;
- allThe[i][j] = theta ;
+ phi[i][j] = _phiStart + i * dPhi ;
+ theta[i][j] = _thetaStart + j * dTheta ;
if(_negativeTime)
- farF[i][j] = getFarFieldMonk(allElems, js, ms, _k0, theta, phi);
+ farField[i][j] = getFarFieldMonk(allElems, js, ms, _k0,
+ theta[i][j], phi[i][j]);
else
- farF[i][j] = getFarFieldJin(allElems, js, ms, _k0, 10 * lc, theta, phi);
- ffmax = (ffmax < farF[i][j]) ? farF[i][j] : ffmax ;
+ farField[i][j] = getFarFieldJin(allElems, js, ms, _k0, 10 * lc,
+ theta[i][j], phi[i][j]);
+ ffmax = (ffmax < farField[i][j]) ? farField[i][j] : ffmax ;
}
Msg::ProgressMeter(i, _NbPhi, true, "Computing far field");
}
+ for(unsigned int i = 0; i < allElems.size(); i++)
+ delete allElems[i];
if(_normalize){
for (int i = 0; i <= _NbPhi; i++)
for (int j = 0; j <= _NbThe; j++)
if(ffmax != 0.0)
- farF[i][j] /= ffmax ;
+ farField[i][j] /= ffmax ;
else
Msg::Warning("Far field pattern not normalized, max value = %g", ffmax);
}
- for(unsigned int i = 0; i < allElems.size(); i++)
- delete allElems[i];
+ for (int i = 0; i <= _NbPhi; i++){
+ for (int j = 0; j <= _NbThe; j++){
+ x[i][j] = x0 + r_sph * farField[i][j] * sin(theta[i][j]) * cos(phi[i][j]);
+ y[i][j] = y0 + r_sph * farField[i][j] * sin(theta[i][j]) * sin(phi[i][j]);
+ z[i][j] = z0 + r_sph * farField[i][j] * cos(theta[i][j]);
+ }
+ }
- // construct sphere for visualization, centered at center of bb and with
- // radius relative to the bb size
- double r_sph = lc ? lc / 2. : 1; // radius of sphere for visu
+ if(_dB){
+ for (int i = 0; i <= _NbPhi; i++)
+ for (int j = 0; j <= _NbThe; j++)
+ farField[i][j] = 10 * log10(farField[i][j]);
+ }
+
+ if(_outFile.size()){
+ FILE *fp = fopen(_outFile.c_str(), "w");
+ if(fp){
+ printVector(fp, "phi", phi);
+ printVector(fp, "theta", theta);
+ printVector(fp, "farField", farField);
+ printVector(fp, "x", x);
+ printVector(fp, "y", y);
+ printVector(fp, "z", z);
+ fclose(fp);
+ }
+ else
+ Msg::Error("Could not open file '%s'", _outFile.c_str());
+ }
for (int i = 0; i < _NbPhi; i++){
for (int j = 0; j < _NbThe; j++){
- double P1[3] = { x0 + r_sph * farF[i ][j ] * sin(allThe[i ][j ]) * cos(allPhi[i ][j ]),
- y0 + r_sph * farF[i ][j ] * sin(allThe[i ][j ]) * sin(allPhi[i ][j ]),
- z0 + r_sph * farF[i ][j ] * cos(allThe[i ][j ]) } ;
- double P2[3] = { x0 + r_sph * farF[i+1][j ] * sin(allThe[i+1][j ]) * cos(allPhi[i+1][j ]),
- y0 + r_sph * farF[i+1][j ] * sin(allThe[i+1][j ]) * sin(allPhi[i+1][j ]),
- z0 + r_sph * farF[i+1][j ] * cos(allThe[i+1][j ]) } ;
- double P3[3] = { x0 + r_sph * farF[i+1][j+1] * sin(allThe[i+1][j+1]) * cos(allPhi[i+1][j+1]),
- y0 + r_sph * farF[i+1][j+1] * sin(allThe[i+1][j+1]) * sin(allPhi[i+1][j+1]),
- z0 + r_sph * farF[i+1][j+1] * cos(allThe[i+1][j+1]) } ;
- double P4[3] = { x0 + r_sph * farF[i ][j+1] * sin(allThe[i ][j+1]) * cos(allPhi[i ][j+1]),
- y0 + r_sph * farF[i ][j+1] * sin(allThe[i ][j+1]) * sin(allPhi[i ][j+1]),
- z0 + r_sph * farF[i ][j+1] * cos(allThe[i ][j+1]) } ;
-
- dataFar->SQ.push_back(P1[0]); dataFar->SQ.push_back(P2[0]);
- dataFar->SQ.push_back(P3[0]); dataFar->SQ.push_back(P4[0]);
- dataFar->SQ.push_back(P1[1]); dataFar->SQ.push_back(P2[1]);
- dataFar->SQ.push_back(P3[1]); dataFar->SQ.push_back(P4[1]);
- dataFar->SQ.push_back(P1[2]); dataFar->SQ.push_back(P2[2]);
- dataFar->SQ.push_back(P3[2]); dataFar->SQ.push_back(P4[2]);
- (dataFar->NbSQ)++;
- if(!_dB){
- dataFar->SQ.push_back(farF[i ][j ]);
- dataFar->SQ.push_back(farF[i+1][j ]);
- dataFar->SQ.push_back(farF[i+1][j+1]);
- dataFar->SQ.push_back(farF[i ][j+1]);
+ if(_NbPhi == 1 || _NbThe == 1){
+ dataFar->NbSP++;
+ dataFar->SP.push_back(x[i][j]); dataFar->SP.push_back(y[i][j]);
+ dataFar->SP.push_back(z[i][j]); dataFar->SP.push_back(farField[i][j]);
}
else{
- dataFar->SQ.push_back(10*log10(farF[i ][j]));
- dataFar->SQ.push_back(10*log10(farF[i+1][j ]));
- dataFar->SQ.push_back(10*log10(farF[i+1][j+1]));
- dataFar->SQ.push_back(10*log10(farF[i ][j+1]));
+ double P1[3] = {x[i][j], y[i][j], z[i][j]};
+ double P2[3] = {x[i+1][j], y[i+1][j], z[i+1][j]};
+ double P3[3] = {x[i+1][j+1], y[i+1][j+1], z[i+1][j+1]};
+ double P4[3] = {x[i][j+1], y[i][j+1], z[i][j+1]};
+ dataFar->NbSQ++;
+ dataFar->SQ.push_back(P1[0]); dataFar->SQ.push_back(P2[0]);
+ dataFar->SQ.push_back(P3[0]); dataFar->SQ.push_back(P4[0]);
+ dataFar->SQ.push_back(P1[1]); dataFar->SQ.push_back(P2[1]);
+ dataFar->SQ.push_back(P3[1]); dataFar->SQ.push_back(P4[1]);
+ dataFar->SQ.push_back(P1[2]); dataFar->SQ.push_back(P2[2]);
+ dataFar->SQ.push_back(P3[2]); dataFar->SQ.push_back(P4[2]);
+ dataFar->SQ.push_back(farField[i][j]);
+ dataFar->SQ.push_back(farField[i+1][j]);
+ dataFar->SQ.push_back(farField[i+1][j+1]);
+ dataFar->SQ.push_back(farField[i][j+1]);
}
}
}
diff --git a/Plugin/NearToFarField.h b/Plugin/NearToFarField.h
index 309608d0ad8194411f1ebd9044a105c7ab5b572f..d76056b92198cf22ef01ad466b45372d987a5faa 100644
--- a/Plugin/NearToFarField.h
+++ b/Plugin/NearToFarField.h
@@ -31,6 +31,8 @@ class GMSH_NearToFarFieldPlugin : public GMSH_PostPlugin
virtual std::string getAuthor() const { return "R. Sabariego, C. Geuzaine"; }
int getNbOptions() const;
StringXNumber* getOption(int iopt);
+ int getNbOptionsStr() const;
+ StringXString *getOptionStr(int iopt);
PView *execute(PView *);
double getFarFieldJin(std::vector<element*> &allElems,