Method ReadArray

IO/EnSight/core/EnSightFile.h:324–385

//------------------------------------------------------------------------------
template <typename T>
bool EnSightFile::ReadArray(T* result, vtkIdType n, bool singleLine /* = false*/,
  bool padBeginning /* = true*/, bool padEnd /* = true*/)
{
  if (n <= 0)
  {
    return true;
  }

  if (this->Format == FileType::ASCII)
  {
    if (!singleLine)
    {
      for (int i = 0; i < n; i++)
      {
        this->ReadNumber(&result[i]);
      }
    }
    else
    {
      int size = getNumChars<T>() * n + 10 * n;
      auto lineResult = this->ReadLine(size);
      if (!lineResult.first)
      {
        vtkGenericWarningMacro("ReadArray() the full ascii line was not read");
      }

      std::stringstream ss(lineResult.second);
      for (int i = 0; i < n; i++)
      {
        ss >> result[i];
      }
    }
  }
  else
  {
    // In some cases we want to read everything in a single fortran
    // read into a single array, but sometimes we don't want to, so
    // we have to handle the skip bytes appropriately
    if (padBeginning && this->FortranSkipBytes > 0)
    {
      this->MoveReadPosition(this->FortranSkipBytes);
    }
    if (!this->Stream->read((char*)result, sizeof(T) * n))
    {
      vtkGenericWarningMacro("read array failed");
      return false;
    }
    if (padEnd && this->FortranSkipBytes > 0)
    {
      this->MoveReadPosition(this->FortranSkipBytes);
    }
    if (this->ByteOrder == Endianness::Little)
    {
      vtkByteSwap::Swap4LERange(result, n);
    }
    else if (this->ByteOrder == Endianness::Big)
    {
      vtkByteSwap::Swap4BERange(result, n);