Method ReadAsciiData

IO/XMLParser/vtkXMLDataParser.cxx:887–929

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//------------------------------------------------------------------------------
size_t vtkXMLDataParser::ReadAsciiData(
  void* buffer, vtkTypeUInt64 startWord, size_t numWords, int wordType)
{
  // Skip real read if aborting.
  if (this->Abort)
  {
    return 0;
  }

  // We assume that ascii data are not very large and parse the entire
  // block into memory.
  this->UpdateProgress(0);

  // Parse the ascii data from the file.
  if (!this->ParseAsciiData(wordType))
  {
    return 0;
  }

  // Make sure we don't read outside the range of data available.
  vtkTypeUInt64 endWord = startWord + numWords;
  if (this->AsciiDataBufferLength < startWord)
  {
    return 0;
  }
  endWord = std::min<vtkTypeUInt64>(endWord, this->AsciiDataBufferLength);
  size_t wordSize = this->GetWordTypeSize(wordType);
  size_t actualWords = endWord - startWord;
  size_t actualBytes = wordSize * actualWords;
  size_t startByte = wordSize * startWord;

  this->UpdateProgress(0.5);

  // Copy the data from the pre-parsed ascii data buffer.
  if (buffer && actualBytes)
  {
    memcpy(buffer, this->AsciiDataBuffer + startByte, actualBytes);
  }

  this->UpdateProgress(1);

  return this->Abort ? 0 : actualWords;
}

//------------------------------------------------------------------------------
size_t vtkXMLDataParser::ReadInlineData(vtkXMLDataElement* element, int isAscii, void* buffer,