/*
 * Copyright (C) 2005-2020 Centre National d'Etudes Spatiales (CNES)
 *
 * This file is part of Orfeo Toolbox
 *
 *     https://www.orfeo-toolbox.org/
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include "otbWorldFile.h"
#include <fstream>

namespace otb
{

void WorldFile::Update()
{
  if (m_ImageFilename.empty())
  {
    itkExceptionMacro(<< "The image filename must be provided");
  }

  std::string worldFilename;
  int         i = m_ImageFilename.find_last_of('.');
  worldFilename = m_ImageFilename.substr(0, i) + ".wld";

  std::ofstream file(worldFilename);

  if (!file)
    itkExceptionMacro(<< "Can not open file " << worldFilename << " for output");
  file << std::setprecision(15);
  file << m_LonSpacing << "\n";
  file << m_LatRotation << "\n"; // yes, in this order
  file << m_LonRotation << "\n";
  file << m_LatSpacing << "\n";
  file << m_LonOrigin << "\n";
  file << m_LatOrigin << "\n";
}
}
