decision_forest.h

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#pragma once
 
#include <pcl/common/common.h>
#include <pcl/ml/dt/decision_tree.h>
 
#include <istream>
#include <ostream>
 
namespace pcl {
 
/** Class representing a decision forest. */
template <class NodeType>
class PCL_EXPORTS DecisionForest : public std::vector<pcl::DecisionTree<NodeType>> {
 
public:
  /** Constructor. */
  DecisionForest() = default;
 
  /** Destructor. */
  virtual ~DecisionForest() = default;
 
  /** Serializes the decision tree.
   *
   * \param[out] stream The destination for the serialization
   */
  void
  serialize(::std::ostream& stream) const
  {
    const int num_of_trees = static_cast<int>(this->size());
    stream.write(reinterpret_cast<const char*>(&num_of_trees), sizeof(num_of_trees));
 
    for (std::size_t tree_index = 0; tree_index < this->size(); ++tree_index) {
      (*this)[tree_index].serialize(stream);
    }
 
    // const int num_of_trees = static_cast<int> (trees_.size ());
    // stream.write (reinterpret_cast<const char*> (&num_of_trees), sizeof
    // (num_of_trees));
 
    // for (std::size_t tree_index = 0; tree_index < trees_.size (); ++tree_index)
    //{
    //  tree_[tree_index].serialize (stream);
    //}
  }
 
  /** Deserializes the decision tree.
   *
   * \param[in] stream The source for the deserialization
   */
  void
  deserialize(::std::istream& stream)
  {
    int num_of_trees;
    stream.read(reinterpret_cast<char*>(&num_of_trees), sizeof(num_of_trees));
    this->resize(num_of_trees);
 
    for (std::size_t tree_index = 0; tree_index < this->size(); ++tree_index) {
      (*this)[tree_index].deserialize(stream);
    }
 
    // int num_of_trees;
    // stream.read (reinterpret_cast<char*> (&num_of_trees), sizeof (num_of_trees));
    // trees_.resize (num_of_trees);
 
    // for (std::size_t tree_index = 0; tree_index < trees_.size (); ++tree_index)
    //{
    //  tree_[tree_index].deserialize (stream);
    //}
  }
 
private:
  /** The decision trees contained in the forest. */
  // std::vector<DecisionTree<NodeType> > trees_;
};
 
} // namespace pcl