Method ReadCellConnectivity

IO/Geometry/vtkGAMBITReader.cxx:346–450

------------------------------------------------------------------------------

//------------------------------------------------------------------------------
void vtkGAMBITReader::ReadCellConnectivity(vtkUnstructuredGrid* output)
{
  int i, k;
  vtkIdType list[27];
  char c, buf[128];

  output->Allocate();

  this->FileStream->get(buf, 128, '\n');
  this->FileStream->get(c);

  for (i = 1; i <= this->NumberOfCells; i++)
  {
    int id; // no check is done to see that they are monotonously increasing
    int ntype, ndp;
    *(this->FileStream) >> id >> ntype >> ndp;

    switch (ntype)
    {
      case EDGE:
      {
        for (k = 0; k < 2; k++)
        {
          *(this->FileStream) >> list[k];
          list[k]--;
        }
        output->InsertNextCell(VTK_LINE, 2, list);
      }
      break;
      case TRI:
      {
        for (k = 0; k < 3; k++)
        {
          *(this->FileStream) >> list[k];
          list[k]--;
        }
        output->InsertNextCell(VTK_TRIANGLE, 3, list);
      }
      break;
      case QUAD:
      {
        for (k = 0; k < 4; k++)
        {
          *(this->FileStream) >> list[k];
          list[k]--;
        }
        output->InsertNextCell(VTK_QUAD, 4, list);
      }
      break;
      case TETRA:
      {
        for (k = 0; k < 4; k++)
        {
          *(this->FileStream) >> list[k];
          list[k]--;
        }
        output->InsertNextCell(VTK_TETRA, 4, list);
      }