pairwise_graph_registration.hpp

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#ifndef PCL_REGISTRATION_IMPL_PAIRWISE_GRAPH_REGISTRATION_HPP_
#define PCL_REGISTRATION_IMPL_PAIRWISE_GRAPH_REGISTRATION_HPP_

template <typename GraphT, typename PointT> void
pcl::PairwiseGraphRegistration<GraphT, PointT>::computeRegistration ()
{
  if (!registration_method_)
  {
    PCL_ERROR ("[pcl::PairwiseGraphRegistration::computeRegistration] No registration method set!\n");
    return;
  }

  typename std::vector<GraphHandlerVertex>::iterator last_vx_it = last_vertices_.begin ();
  if (last_aligned_vertex_ == boost::graph_traits<GraphT>::null_vertex ())
  {
    last_aligned_vertex_ = *last_vx_it;
    ++last_vx_it;
  }

  pcl::PointCloud<PointT> fake_cloud;
  registration_method_->setInputTarget (boost::get_cloud<PointT> (last_aligned_vertex_, *(graph_handler_->getGraph ())));
  for(; last_vx_it < last_vertices_.end (); ++last_vx_it)
  {
    registration_method_->setInputCloud (boost::get_cloud<PointT> (*last_vx_it, *(graph_handler_->getGraph ())));

    const Eigen::Matrix4f last_aligned_vertex_pose = boost::get_pose (last_aligned_vertex_, *(graph_handler_->getGraph ()));
    if (!incremental_)
    {
      const Eigen::Matrix4f guess = last_aligned_vertex_pose.transpose () * boost::get_pose (*last_vx_it, *(graph_handler_->getGraph ()));
      registration_method_->align (fake_cloud, guess);
    } else
      registration_method_->align (fake_cloud);

    const Eigen::Matrix4f global_ref_final_tr = last_aligned_vertex_pose * registration_method_->getFinalTransformation ();
    boost::set_estimate<PointT> (*last_vx_it, global_ref_final_tr, *(graph_handler_->getGraph ()));
    last_aligned_vertex_ = *last_vx_it;
    registration_method_->setInputTarget (boost::get_cloud<PointT> (last_aligned_vertex_, *(graph_handler_->getGraph ())));
  }
}
#endif //PCL_REGISTRATION_IMPL_PAIRWISE_GRAPH_REGISTRATION_HPP_