world_model.h

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* Author: Eitan Marder-Eppstein
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#ifndef TRAJECTORY_ROLLOUT_WORLD_MODEL_H_
#define TRAJECTORY_ROLLOUT_WORLD_MODEL_H_
 
#include <vector>
#include <costmap_2d/observation.h>
#include <costmap_2d/footprint.h>
#include <geometry_msgs/Point.h>
#include <base_local_planner/planar_laser_scan.h>
 
namespace base_local_planner {
  class WorldModel{
    public:
      virtual double footprintCost(const geometry_msgs::Point& position, const std::vector<geometry_msgs::Point>& footprint,
          double inscribed_radius, double circumscribed_radius) = 0;
 
      double footprintCost(double x, double y, double theta, const std::vector<geometry_msgs::Point>& footprint_spec, double inscribed_radius = 0.0, double circumscribed_radius=0.0){
 
        double cos_th = cos(theta);
        double sin_th = sin(theta);
        std::vector<geometry_msgs::Point> oriented_footprint;
        for(unsigned int i = 0; i < footprint_spec.size(); ++i){
          geometry_msgs::Point new_pt;
          new_pt.x = x + (footprint_spec[i].x * cos_th - footprint_spec[i].y * sin_th);
          new_pt.y = y + (footprint_spec[i].x * sin_th + footprint_spec[i].y * cos_th);
          oriented_footprint.push_back(new_pt);
        }
 
        geometry_msgs::Point robot_position;
        robot_position.x = x;
        robot_position.y = y;
 
        if(inscribed_radius==0.0){
          costmap_2d::calculateMinAndMaxDistances(footprint_spec, inscribed_radius, circumscribed_radius);
        }
 
        return footprintCost(robot_position, oriented_footprint, inscribed_radius, circumscribed_radius);
      }
 
      double footprintCost(const geometry_msgs::Point& position, const std::vector<geometry_msgs::Point>& footprint,
          double inscribed_radius, double circumscribed_radius, double extra) {
        return footprintCost(position, footprint, inscribed_radius, circumscribed_radius);
      }
 
      virtual ~WorldModel(){}
 
    protected:
      WorldModel(){}
  };
 
};
#endif