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Nektar::Utilities::OutputFld Class Reference

Converter from fld to vtk. More...

#include <OutputFld.h>

Inheritance diagram for Nektar::Utilities::OutputFld:
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Collaboration diagram for Nektar::Utilities::OutputFld:
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Public Member Functions

 OutputFld (FieldSharedPtr f)
 
virtual ~OutputFld ()
 
virtual void Process (po::variables_map &vm)
 Write fld to output file. More...
 
virtual std::string GetModuleName ()
 
- Public Member Functions inherited from Nektar::Utilities::OutputModule
 OutputModule (FieldSharedPtr p_f)
 
void OpenStream ()
 Open a file for output. More...
 
 OutputModule (MeshSharedPtr p_m)
 
void OpenStream ()
 
- Public Member Functions inherited from Nektar::Utilities::Module
 Module (FieldSharedPtr p_f)
 
void RegisterConfig (string key, string value)
 Register a configuration option with a module. More...
 
void PrintConfig ()
 Print out all configuration options for a module. More...
 
void SetDefaults ()
 Sets default configuration options for those which have not been set. More...
 
bool GetRequireEquiSpaced (void)
 
void SetRequireEquiSpaced (bool pVal)
 
void EvaluateTriFieldAtEquiSpacedPts (LocalRegions::ExpansionSharedPtr &exp, const Array< OneD, const NekDouble > &infield, Array< OneD, NekDouble > &outfield)
 
 Module (MeshSharedPtr p_m)
 
virtual void Process ()=0
 
void RegisterConfig (std::string key, std::string value)
 
void PrintConfig ()
 
void SetDefaults ()
 
MeshSharedPtr GetMesh ()
 
virtual void ProcessVertices ()
 Extract element vertices. More...
 
virtual void ProcessEdges (bool ReprocessEdges=true)
 Extract element edges. More...
 
virtual void ProcessFaces (bool ReprocessFaces=true)
 Extract element faces. More...
 
virtual void ProcessElements ()
 Generate element IDs. More...
 
virtual void ProcessComposites ()
 Generate composites. More...
 
virtual void ClearElementLinks ()
 

Static Public Member Functions

static boost::shared_ptr< Module > create (FieldSharedPtr f)
 Creates an instance of this class. More...
 

Static Public Attributes

static ModuleKey m_className []
 

Additional Inherited Members

- Protected Member Functions inherited from Nektar::Utilities::Module
 Module ()
 
void ReorderPrisms (PerMap &perFaces)
 Reorder node IDs so that prisms and tetrahedra are aligned correctly. More...
 
void PrismLines (int prism, PerMap &perFaces, std::set< int > &prismsDone, std::vector< ElementSharedPtr > &line)
 
- Protected Attributes inherited from Nektar::Utilities::OutputModule
ofstream m_fldFile
 Output stream. More...
 
std::ofstream m_mshFile
 Output stream. More...
 
- Protected Attributes inherited from Nektar::Utilities::Module
FieldSharedPtr m_f
 Field object. More...
 
map< string, ConfigOption > m_config
 List of configuration values. More...
 
bool m_requireEquiSpaced
 
MeshSharedPtr m_mesh
 Mesh object. More...
 
std::map< std::string,
ConfigOption > 		m_config
 List of configuration values. More...
 

Detailed Description

Converter from fld to vtk.

Definition at line 48 of file OutputFld.h.

Constructor & Destructor Documentation

Nektar::Utilities::OutputFld::OutputFld ( FieldSharedPtr  f)

Definition at line 57 of file OutputFld.cpp.

57  : OutputModule(f)
58 {
59 }
Nektar::Utilities::OutputFld::~OutputFld ( )
virtual

Definition at line 61 of file OutputFld.cpp.

62 {
63 }

Member Function Documentation

static boost::shared_ptr<Module> Nektar::Utilities::OutputFld::create ( FieldSharedPtr  f)
inlinestatic

Creates an instance of this class.

Definition at line 52 of file OutputFld.h.

References Nektar::MemoryManager< DataType >::AllocateSharedPtr().

52  {
53  return MemoryManager<OutputFld>::AllocateSharedPtr(f);
54  }
Nektar::MemoryManager::AllocateSharedPtr
static boost::shared_ptr< DataType > AllocateSharedPtr()
Allocate a shared pointer from the memory pool.
Definition: NekMemoryManager.hpp:235
virtual std::string Nektar::Utilities::OutputFld::GetModuleName ( )
inlinevirtual

Implements Nektar::Utilities::Module.

Definition at line 63 of file OutputFld.h.

64  {
65  return "OutputFld";
66  }
void Nektar::Utilities::OutputFld::Process ( po::variables_map &  vm)
virtual

Write fld to output file.

Implements Nektar::Utilities::Module.

Definition at line 65 of file OutputFld.cpp.

References ASSERTL0, Nektar::SpatialDomains::BoundaryConditions::GetBoundaryRegions(), Nektar::Utilities::Module::m_config, Nektar::Utilities::Module::m_f, Nektar::LibUtilities::ReduceSum, and Vmath::Vcopy().

66 {
67  // Extract the output filename and extension
68  string filename = m_config["outfile"].as<string>();
69 
70  if (m_f->m_writeBndFld)
71  {
72  ModuleKey module;
73 
74  if (m_f->m_verbose)
75  {
76  if(m_f->m_comm->TreatAsRankZero())
77  {
78  cout << "OutputFld: Writing boundary file(s): ";
79  for(int i = 0; i < m_f->m_bndRegionsToWrite.size(); ++i)
80  {
81  cout << m_f->m_bndRegionsToWrite[i];
82  if(i < m_f->m_bndRegionsToWrite.size()-1)
83  {
84  cout << ",";
85  }
86  }
87  cout << endl;
88  }
89  }
90 
91  // Extract data to boundaryconditions
92  if (m_f->m_fldToBnd) {
93  for (int i = 0; i < m_f->m_exp.size(); ++i)
94  {
95  m_f->m_exp[i]->FillBndCondFromField();
96  }
97  }
98 
99 
100  int nfields = m_f->m_exp.size();
101  Array<OneD, Array<OneD, const MultiRegions::ExpListSharedPtr> >
102  BndExp(nfields);
103  for (int i = 0; i < nfields; ++i)
104  {
105  BndExp[i] = m_f->m_exp[i]->GetBndCondExpansions();
106  }
107 
108  // get hold of partition boundary regions so we can match it to desired
109  // region extraction
110  SpatialDomains::BoundaryConditions bcs(m_f->m_session,
111  m_f->m_exp[0]->GetGraph());
112  const SpatialDomains::BoundaryRegionCollection bregions =
113  bcs.GetBoundaryRegions();
114  SpatialDomains::BoundaryRegionCollection::const_iterator breg_it;
115  map<int,int> BndRegionMap;
116  int cnt =0;
117  for(breg_it = bregions.begin(); breg_it != bregions.end();
118  ++breg_it, ++cnt)
119  {
120  BndRegionMap[breg_it->first] = cnt;
121  }
122 
123  // find ending of output file and insert _b1, _b2
124  int dot = filename.find_last_of('.') + 1;
125  string ext = filename.substr(dot, filename.length() - dot);
126  string name = filename.substr(0, dot-1);
127 
128  for(int i = 0; i < m_f->m_bndRegionsToWrite.size(); ++i)
129  {
130  string outname = name + "_b"
131  + boost::lexical_cast<string>(m_f->m_bndRegionsToWrite[i])
132  + "." + ext;
133 
134  std::vector<LibUtilities::FieldDefinitionsSharedPtr> FieldDef;
135  std::vector<std::vector<NekDouble> > FieldData;
136 
137  if(BndRegionMap.count(m_f->m_bndRegionsToWrite[i]) == 1)
138  {
139  int Border = BndRegionMap[m_f->m_bndRegionsToWrite[i]];
140 
141  FieldDef = BndExp[0][Border]->GetFieldDefinitions();
142  FieldData.resize(FieldDef.size());
143 
144  for (int j = 0; j < nfields; ++j)
145  {
146  for (int k = 0; k < FieldDef.size(); ++k)
147  {
148  BndExp[j][Border]->AppendFieldData(FieldDef[k],
149  FieldData[k]);
150 
151  if (m_f->m_fielddef.size() > 0)
152  {
153  FieldDef[k]->m_fields.push_back(
154  m_f->m_fielddef[0]->m_fields[j]);
155  }
156  else
157  {
158  FieldDef[k]->m_fields.push_back(
159  m_f->m_session->GetVariable(j));
160  }
161  }
162  }
163 
164  if(m_f->m_addNormals)
165  {
166  int normdim = m_f->m_graph->GetMeshDimension();
167  string normstr[3] = {"Norm_x","Norm_y","Norm_z"};
168 
169  // Add normal information
170  StdRegions::StdExpansionSharedPtr elmt;
171  Array<OneD, int> BoundarytoElmtID, BoundarytoTraceID;
172 
173  m_f->m_exp[0]->GetBoundaryToElmtMap(BoundarytoElmtID,
174  BoundarytoTraceID);
175 
176  // determine offset of this Bnd Expansion Border
177  int cnt = 0;
178  for(int n = 0; n < Border; ++n)
179  {
180  cnt += BndExp[0][n]->GetExpSize();
181  }
182 
183  Array<OneD, NekDouble> tmp_array;
184  Array<OneD, Array<OneD, NekDouble> > NormPhys(normdim);
185 
186  for(int j = 0; j < normdim; ++j)
187  {
188  NormPhys[j] = Array<OneD, NekDouble>(BndExp[0][Border]->GetTotPoints(),0.0);
189  }
190 
191  // setup phys arrays of normals
192  for(int j=0; j < BndExp[0][Border]->GetExpSize(); ++j,++cnt)
193  {
194  int elmtid = BoundarytoElmtID[cnt];
195 
196  elmt = m_f->m_exp[0]->GetExp(elmtid);
197 
198  //identify boundary of element looking at.
199  int boundary = BoundarytoTraceID[cnt];
200 
201  // Dimension specific part
202  switch(normdim)
203  {
204  case 2:
205  {
206  // Get edge 1D expansion from element expansion
207  StdRegions::StdExpansion1DSharedPtr bc;
208  bc = boost::dynamic_pointer_cast
209  <StdRegions::StdExpansion1D>
210  (BndExp[0][Border]->GetExp(j));
211  // Get edge normals
212  const Array<OneD, const Array<OneD, NekDouble> >
213  normals = elmt->GetEdgeNormal(boundary);
214 
215  for(int k = 0; k < normdim; ++k)
216  {
217  Vmath::Vcopy(bc->GetTotPoints(),
218  normals[k], 1,
219  tmp_array = NormPhys[k]+
220  BndExp[0][Border]->
221  GetPhys_Offset(j), 1);
222  }
223  }
224  break;
225 
226  case 3:
227  {
228  // Get face 2D expansion from element expansion
229  StdRegions::StdExpansion2DSharedPtr bc;
230  bc = boost::dynamic_pointer_cast
231  <StdRegions::StdExpansion2D>
232  (BndExp[0][Border]->GetExp(j));
233  //Get face normals
234  const Array<OneD, const Array<OneD, NekDouble> >
235  normals = elmt->GetFaceNormal(boundary);
236 
237  for(int k = 0; k < normdim; ++k)
238  {
239  Vmath::Vcopy(bc->GetTotPoints(),
240  normals[k], 1,
241  tmp_array = NormPhys[k]+
242  BndExp[0][Border]->
243  GetPhys_Offset(j), 1);
244  }
245  }
246  break;
247 
248  default:
249  ASSERTL0(false, "Addnormals requires expdim >=2.");
250  break;
251  }
252  }
253 
254  // add normal coefficients to list to be dumped
255  for (int j = 0; j < normdim; ++j)
256  {
257  BndExp[0][Border]->FwdTrans( NormPhys[j],
258  BndExp[0][Border]->UpdateCoeffs());
259 
260  for (int k = 0; k < FieldDef.size(); ++k)
261  {
262  BndExp[0][Border]->AppendFieldData(FieldDef[k],
263  FieldData[k]);
264  FieldDef[k]->m_fields.push_back(normstr[j]);
265  }
266  }
267  }
268 
269  // output error for regression checking.
270  if (vm.count("error"))
271  {
272  int rank = m_f->m_session->GetComm()->GetRank();
273 
274  for (int j = 0; j < nfields; ++j)
275  {
276  BndExp[j][Border]->BwdTrans(BndExp[j][Border]->GetCoeffs(),
277  BndExp[j][Border]->UpdatePhys());
278 
279  //Note currently these calls will
280  //hange since not all partitions will
281  //call error.
282  NekDouble l2err = BndExp[j][Border]
283  ->L2(BndExp[j][Border]->GetPhys());
284 
285  NekDouble linferr = BndExp[j][Border]
286  ->Linf(BndExp[j][Border]->GetPhys());
287 
288  if (rank == 0)
289  {
290  cout << "L 2 error (variable "
291  << FieldDef[0]->m_fields[j]
292  << ") : " << l2err << endl;
293 
294  cout << "L inf error (variable "
295  << FieldDef[0]->m_fields[j]
296  << ") : " << linferr << endl;
297  }
298  }
299  }
300  }
301 
302  m_f->m_fld->Write(outname, FieldDef, FieldData,
303  m_f->m_fieldMetaDataMap);
304 
305  }
306  }
307  else
308  {
309  if (m_f->m_verbose)
310  {
311  if(m_f->m_comm->TreatAsRankZero())
312  {
313  cout << "OutputFld: Writing file..." << endl;
314  }
315  }
316 
317  fs::path writefile(filename);
318  int writefld = 1;
319  if(fs::exists(writefile)&&(vm.count("forceoutput") == 0))
320  {
321  LibUtilities::CommSharedPtr comm = m_f->m_session->GetComm();
322  int rank = comm->GetRank();
323  writefld = 0; // set to zero for reduce all to be correct.
324 
325  if(rank == 0)
326  {
327  string answer;
328  cout << "Did you wish to overwrite " << filename << " (y/n)? ";
329  getline(cin,answer);
330  if(answer.compare("y") == 0)
331  {
332  writefld = 1;
333  }
334  else
335  {
336  cout << "Not writing file " << filename << " because it already exists" << endl;
337  }
338  }
339 
340  comm->AllReduce(writefld,LibUtilities::ReduceSum);
341 
342  }
343 
344  if(writefld)
345  {
346  m_f->m_fld->Write(filename, m_f->m_fielddef, m_f->m_data,
347  m_f->m_fieldMetaDataMap);
348  }
349 
350  // output error for regression checking.
351  if (vm.count("error"))
352  {
353  int rank = m_f->m_session->GetComm()->GetRank();
354 
355  for (int j = 0; j < m_f->m_exp.size(); ++j)
356  {
357  if (m_f->m_exp[j]->GetPhysState() == false)
358  {
359  m_f->m_exp[j]->BwdTrans(
360  m_f->m_exp[j]->GetCoeffs(),
361  m_f->m_exp[j]->UpdatePhys());
362  }
363 
364  NekDouble l2err = m_f->m_exp[j]->L2(
365  m_f->m_exp[j]->GetPhys());
366 
367  NekDouble linferr = m_f->m_exp[j]->Linf(
368  m_f->m_exp[j]->GetPhys());
369  if (rank == 0)
370  {
371  cout << "L 2 error (variable "
372  << m_f->m_fielddef[0]->m_fields[j]
373  << ") : " << l2err << endl;
374 
375  cout << "L inf error (variable "
376  << m_f->m_fielddef[0]->m_fields[j]
377  << ") : " << linferr << endl;
378  }
379  }
380  }
381  }
382 }
ASSERTL0
#define ASSERTL0(condition, msg)
Definition: ErrorUtil.hpp:188
Nektar::Utilities::ModuleKey
pair< ModuleType, string > ModuleKey
Definition: FieldConvert/Module.h:227
Nektar::Utilities::Module::m_config
map< string, ConfigOption > m_config
List of configuration values.
Definition: FieldConvert/Module.h:170
Nektar::Utilities::Module::m_f
FieldSharedPtr m_f
Field object.
Definition: FieldConvert/Module.h:165
Nektar::StdRegions::StdExpansion2DSharedPtr
boost::shared_ptr< StdExpansion2D > StdExpansion2DSharedPtr
Definition: StdExpansion2D.h:203
Nektar::LibUtilities::CommSharedPtr
boost::shared_ptr< Comm > CommSharedPtr
Pointer to a Communicator object.
Definition: Comm.h:53
Nektar::SpatialDomains::BoundaryRegionCollection
std::map< int, BoundaryRegionShPtr > BoundaryRegionCollection
Definition: Conditions.h:206
Nektar::StdRegions::StdExpansion1DSharedPtr
boost::shared_ptr< StdExpansion1D > StdExpansion1DSharedPtr
Definition: StdExpansion1D.h:112
Nektar::NekDouble
double NekDouble
Definition: NektarUnivTypeDefs.hpp:44
Nektar::StdRegions::StdExpansionSharedPtr
boost::shared_ptr< StdExpansion > StdExpansionSharedPtr
Definition: StdExpansion.h:1873
Vmath::Vcopy
void Vcopy(int n, const T *x, const int incx, T *y, const int incy)
Definition: Vmath.cpp:1047

Member Data Documentation

ModuleKey Nektar::Utilities::OutputFld::m_className
static
Initial value:
= {
GetModuleFactory().RegisterCreatorFunction(
ModuleKey(eOutputModule, "fld"), OutputFld::create,
"Writes a Fld file."),
GetModuleFactory().RegisterCreatorFunction(
ModuleKey(eOutputModule, "chk"), OutputFld::create,
"Writes a Fld file."),
}

Definition at line 55 of file OutputFld.h.

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