src/Plugins/IntegrationPoints/vtkELNOSurfaceFilter.cxx

   1 // Copyright (C) 2010-2012  CEA/DEN, EDF R&D
   2 //
   3 // This library is free software; you can redistribute it and/or
   4 // modify it under the terms of the GNU Lesser General Public
   5 // License as published by the Free Software Foundation; either
   6 // version 2.1 of the License.
   7 //
   8 // This library is distributed in the hope that it will be useful,
   9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11 // Lesser General Public License for more details.
  12 //
  13 // You should have received a copy of the GNU Lesser General Public
  14 // License along with this library; if not, write to the Free Software
  15 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  16 //
  17 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
  18 //
  19
  20 #include "vtkELNOSurfaceFilter.h"
  21 #include "vtkInformation.h"
  22 #include "vtkInformationVector.h"
  23 #include "vtkObjectFactory.h"
  24 #include "vtkPolyDataAlgorithm.h"
  25 #include "vtkPolyData.h"
  26 #include "vtkIdTypeArray.h"
  27 #include "vtkInformationQuadratureSchemeDefinitionVectorKey.h"
  28 #include "vtkQuadratureSchemeDefinition.h"
  29 #include "vtkUnstructuredGrid.h"
  30 #include "vtkPVGeometryFilter.h"
  31 #include "vtkShrinkFilter.h"
  32 #include "vtkSmartPointer.h"
  33 #include "vtkPointData.h"
  34 #include "vtkCellData.h"
  35 #include "vtkIdList.h"
  36
  37 //vtkCxxRevisionMacro(vtkELNOSurfaceFilter, "$Revision$")
  38 //;
  39 vtkStandardNewMacro(vtkELNOSurfaceFilter)
  40 ;
  41
  42 vtkELNOSurfaceFilter::vtkELNOSurfaceFilter()
  43 {
  44 }
  45
  46 vtkELNOSurfaceFilter::~vtkELNOSurfaceFilter()
  47 {
  48 }
  49
  50 int vtkELNOSurfaceFilter::RequestData(vtkInformation *request,
  51     vtkInformationVector **input, vtkInformationVector *output)
  52 {
  53   vtkUnstructuredGrid *usgIn=vtkUnstructuredGrid::SafeDownCast(
  54       input[0]->GetInformationObject(0)->Get(vtkDataObject::DATA_OBJECT()));
  55
  56   vtkUnstructuredGrid *usgOut=vtkUnstructuredGrid::SafeDownCast(
  57       output->GetInformationObject(0)->Get(vtkDataObject::DATA_OBJECT()));
  58
  59   vtkIdTypeArray* usg_offsets=vtkIdTypeArray::SafeDownCast(
  60       this->GetInputArrayToProcess(0, input));
  61
  62   if(usgIn==NULL||usg_offsets==NULL||usgOut==NULL)
  63     {
  64     vtkDebugMacro("vtkELNOSurfaceFilter no correctly configured : offsets = " << usg_offsets);
  65     return 1;
  66     }
  67
  68   // first shrink the input
  69   vtkUnstructuredGrid* usgInClone=usgIn->NewInstance();
  70
  71   usgInClone->ShallowCopy(usgIn);
  72
  73   vtkSmartPointer<vtkPVGeometryFilter> geomFilter=vtkSmartPointer<
  74       vtkPVGeometryFilter>::New();
  75   geomFilter->SetInputData(usgInClone);
  76   geomFilter->SetPassThroughCellIds(1);
  77   geomFilter->SetPassThroughPointIds(1);
  78   geomFilter->SetUseOutline(0);
  79   geomFilter->Update();
  80
  81   vtkPolyData* surface=vtkPolyData::SafeDownCast(geomFilter->GetOutput());
  82   vtkIdTypeArray* originalCellIds=vtkIdTypeArray::SafeDownCast(
  83       surface->GetCellData()->GetArray("vtkOriginalCellIds"));
  84   vtkIdTypeArray* originalPointIds=vtkIdTypeArray::SafeDownCast(
  85       surface->GetPointData()->GetArray("vtkOriginalPointIds"));
  86
  87   if( originalCellIds == NULL )
  88   {
  89     vtkErrorMacro("vtkPVGeometryFilter return NULL 'vtkOriginalCellIds' array");
  90     return 0;
  91   }
  92
  93   if(originalPointIds==NULL)
  94   {
  95     vtkErrorMacro("vtkPVGeometryFilter return NULL 'vtkOriginalPointIds' array");
  96     return 0;
  97   }
  98
  99   vtkSmartPointer<vtkShrinkFilter> shrink=
 100       vtkSmartPointer<vtkShrinkFilter>::New();
 101   shrink->SetInputConnection(geomFilter->GetOutputPort(0));
 102   shrink->SetShrinkFactor(0.9999);
 103   shrink->Update();
 104
 105   vtkUnstructuredGrid* shrinked=shrink->GetOutput();
 106
 107   usgInClone->Delete();
 108
 109   usgOut->ShallowCopy(shrinked);
 110
 111   vtkIdTypeArray* offsets=vtkIdTypeArray::SafeDownCast(
 112       shrinked->GetCellData()->GetArray(usg_offsets->GetName()));
 113
 114   // now copy ELNO data. Start by verifying if it is possible to
 115   // shallow copy the array.
 116   vtkInformation *info=offsets->GetInformation();
 117   vtkInformationQuadratureSchemeDefinitionVectorKey *key=
 118       vtkQuadratureSchemeDefinition::DICTIONARY();
 119   if(!key->Has(info))
 120     {
 121     vtkDebugMacro("Dictionary is not present in array " << offsets->GetName()
 122                   << " " << offsets << " Aborting." );
 123     return 0;
 124     }
 125   int dictSize=key->Size(info);
 126   vtkQuadratureSchemeDefinition **dict=
 127       new vtkQuadratureSchemeDefinition *[dictSize];
 128   key->GetRange(info, dict, 0, 0, dictSize);
 129
 130   vtkIdType ncell=shrinked->GetNumberOfCells();
 131
 132   vtkFieldData* fielddata=usgIn->GetFieldData();
 133   vtkIdList *ids=vtkIdList::New();
 134   vtkIdList *surfaceIds=vtkIdList::New();
 135   vtkIdList *originalIds=vtkIdList::New();
 136   for(int index=0; index<fielddata->GetNumberOfArrays(); index++)
 137     {
 138     vtkDataArray* data=fielddata->GetArray(index);
 139     if(data==NULL)
 140       continue;
 141
 142     vtkInformation* info=data->GetInformation();
 143     const char* arrayOffsetName=info->Get(
 144         vtkQuadratureSchemeDefinition::QUADRATURE_OFFSET_ARRAY_NAME());
 145
 146     if(arrayOffsetName == NULL ||
 147        strcmp(arrayOffsetName, offsets->GetName())!=0)
 148       {
 149       usgOut->GetFieldData()->AddArray(data);
 150
 151       continue;
 152       }
 153
 154     vtkDataArray* newArray=data->NewInstance();
 155     newArray->SetName(data->GetName());
 156     usgOut->GetPointData()->AddArray(newArray);
 157     newArray->SetNumberOfComponents(data->GetNumberOfComponents());
 158     newArray->SetNumberOfTuples(usgOut->GetNumberOfPoints());
 159     newArray->CopyComponentNames(data);
 160     newArray->Delete();
 161
 162     for(vtkIdType cellId=0; cellId<ncell; cellId++)
 163       {
 164       vtkIdType offset=offsets->GetValue(cellId);
 165
 166       vtkIdType originalCellId=originalCellIds->GetValue(cellId);
 167       int originalCellType=usgIn->GetCellType(originalCellId);
 168
 169       shrinked->GetCellPoints(cellId, ids);
 170       surface->GetCellPoints(cellId, surfaceIds);
 171
 172       for(int id=0; id<ids->GetNumberOfIds(); id++)
 173         {
 174         vtkIdType surfaceId=surfaceIds->GetId(id);
 175         vtkIdType shrinkedId=ids->GetId(id);
 176         vtkIdType originalPointId = originalPointIds->GetValue(surfaceId);
 177
 178         usgIn->GetCellPoints(originalCellId, originalIds);
 179         int originalLocalId=-1;
 180         for(int li=0; li<originalIds->GetNumberOfIds(); li++)
 181           {
 182           if(originalPointId==originalIds->GetId(li))
 183             {
 184             originalLocalId=li;
 185             break;
 186             }
 187           }
 188         if(originalLocalId==-1)
 189           {
 190           originalLocalId=0;
 191           vtkErrorMacro("cannot find original id");
 192           }
 193
 194         const double * w=dict[originalCellType]->GetShapeFunctionWeights(
 195             originalLocalId);
 196         int j;
 197         for(j=0; j<dict[originalCellType]->GetNumberOfNodes(); j++)
 198           {
 199           if(w[j]==1.0)
 200             break;
 201           }
 202         if(j==dict[originalCellType]->GetNumberOfNodes())
 203           {
 204           vtkErrorMacro("cannot find elno weigth.");
 205           j=id;
 206           }
 207         newArray->SetTuple(shrinkedId, offset+j, data);
 208         }
 209       }
 210     }
 211
 212   ids->FastDelete();
 213   surfaceIds->FastDelete();
 214   originalIds->FastDelete();
 215   delete[] dict;
 216
 217   return 1;
 218 }
 219
 220 void vtkELNOSurfaceFilter::PrintSelf(ostream& os, vtkIndent indent)
 221 {
 222   this->Superclass::PrintSelf(os, indent);
 223 }