// -*- mode: C++ -*-
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#ifndef JSK_PCL_ROS_GRID_MAP_H_
#define JSK_PCL_ROS_GRID_MAP_H_

#include <jsk_recognition_msgs/SparseOccupancyGrid.h>

#include "jsk_pcl_ros/grid_index.h"
#include "jsk_pcl_ros/grid_line.h"
#include <pcl/point_types.h>
#include <pcl/point_cloud.h>
#include <map>
#include <set>
#include <Eigen/Geometry>
#include <boost/tuple/tuple.hpp>

#include "jsk_pcl_ros/geo_util.h"
#include <opencv2/opencv.hpp>

namespace jsk_pcl_ros
{

   // infinity range, might be slow...
  class GridMap
  {
  public:
    typedef boost::shared_ptr<GridMap> Ptr;
    typedef std::set<int> RowIndices;
    typedef std::map<int, RowIndices> Columns;
    typedef Columns::iterator ColumnIterator;
    typedef std::set<int>::iterator RowIterator;
    GridMap(double resolution, const std::vector<float>& coefficients);
    virtual ~GridMap();
    virtual void registerPoint(const pcl::PointXYZRGB& point);
    virtual std::vector<GridIndex::Ptr> registerLine(const pcl::PointXYZRGB& from, const pcl::PointXYZRGB& to);
    virtual void removeIndex(const GridIndex::Ptr& index);
    virtual void registerPointCloud(pcl::PointCloud<pcl::PointXYZRGB>::Ptr cloud);
    virtual GridIndex::Ptr registerIndex(const GridIndex::Ptr& index);
    virtual GridIndex::Ptr registerIndex(const int x, const int y);
    virtual void pointToIndex(const pcl::PointXYZRGB& point, GridIndex::Ptr index);
    virtual void pointToIndex(const Eigen::Vector3f& point, GridIndex::Ptr index);
    virtual void indicesToPointCloud(const std::vector<GridIndex::Ptr>& indices,
                                     pcl::PointCloud<pcl::PointXYZRGB>::Ptr cloud);
    virtual bool getValue(const GridIndex::Ptr& index);
    virtual bool getValue(const GridIndex& index);
    virtual bool getValue(const int x, const int y);
    virtual void gridToPoint(GridIndex::Ptr index, Eigen::Vector3f& pos);
    virtual void gridToPoint(const GridIndex& index, Eigen::Vector3f& pos);
    virtual void gridToPoint2(const GridIndex& index, Eigen::Vector3f& pos);
    virtual void fillRegion(const Eigen::Vector3f& start, std::vector<GridIndex::Ptr>& output);
    virtual void fillRegion(const GridIndex::Ptr start, std::vector<GridIndex::Ptr>& output);
    // toMsg does not fill header, be carefull
    virtual void originPose(Eigen::Affine3f& output);
    virtual void originPose(Eigen::Affine3d& output);
    virtual void toMsg(jsk_recognition_msgs::SparseOccupancyGrid& grid);
    virtual Plane toPlane();
    virtual Plane::Ptr toPlanePtr();
    virtual void vote();
    virtual unsigned int getVoteNum();
    virtual void setGeneration(unsigned int generation);
    virtual unsigned int getGeneration();
    virtual std::vector<float> getCoefficients();
    virtual bool isBinsOccupied(const Eigen::Vector3f& p);
    virtual int normalizedWidth();
    virtual int normalizedHeight();
    virtual boost::tuple<int, int> minMaxX();
    virtual boost::tuple<int, int> minMaxY();
    virtual int widthOffset();
    virtual int heightOffset();
    virtual int normalizedIndex(int width_offset, int height_offset,
                                int step,
                                int elem_size,
                                int original_x, int original_y);
    virtual cv::Mat toImage();
    virtual bool check4Neighbor(int x, int y);
    virtual ConvexPolygon::Ptr toConvexPolygon();
    virtual pcl::PointCloud<pcl::PointXYZ>::Ptr toPointCloud();
    virtual void decrease(int i);
    virtual void add(GridMap& other);
  protected:
    virtual void decreaseOne();
    
    double resolution_;
    Eigen::Vector3f O_;
    
    // plane parameter
    Eigen::Vector3f normal_;
    double d_;
    
    Eigen::Vector3f ex_, ey_;
    
    std::vector<GridLine::Ptr> lines_;
    Columns data_;
    unsigned int vote_;
    unsigned int generation_;
  private:
  };
  
}

#endif
