costmap_planner_execution.cpp

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/*
 *  Copyright 2018, Magazino GmbH, Sebastian Pütz, Jorge Santos Simón
 *
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions
 *  are met:
 *
 *  1. Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *
 *  2. Redistributions in binary form must reproduce the above
 *     copyright notice, this list of conditions and the following
 *     disclaimer in the documentation and/or other materials provided
 *     with the distribution.
 *
 *  3. Neither the name of the copyright holder nor the names of its
 *     contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 *  FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 *  COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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 *
 *  costmap_planner_execution.cpp
 *
 *  authors:
 *    Sebastian Pütz <spuetz@uni-osnabrueck.de>
 *    Jorge Santos Simón <santos@magazino.eu>
 *
 */
#include <nav_core_wrapper/wrapper_global_planner.h>
#include <mbf_msgs/GetPathResult.h>
 
#include "mbf_costmap_nav/costmap_planner_execution.h"
 
namespace mbf_costmap_nav
{
CostmapPlannerExecution::CostmapPlannerExecution(const std::string& planner_name,
                                                 const mbf_costmap_core::CostmapPlanner::Ptr& planner_ptr,
                                                 const TFPtr& tf_listener_ptr, const CostmapWrapper::Ptr& costmap_ptr,
                                                 const MoveBaseFlexConfig& config)
  : AbstractPlannerExecution(planner_name, planner_ptr, tf_listener_ptr, toAbstract(config)), costmap_ptr_(costmap_ptr)
{
  ros::NodeHandle private_nh("~");
  private_nh.param("planner_lock_costmap", lock_costmap_, true);
}
 
CostmapPlannerExecution::~CostmapPlannerExecution()
{
}
 
mbf_abstract_nav::MoveBaseFlexConfig CostmapPlannerExecution::toAbstract(const MoveBaseFlexConfig &config)
{
  // copy the planner-related abstract configuration common to all MBF-based navigation
  mbf_abstract_nav::MoveBaseFlexConfig abstract_config;
  abstract_config.planner_frequency = config.planner_frequency;
  abstract_config.planner_patience = config.planner_patience;
  abstract_config.planner_max_retries = config.planner_max_retries;
  return abstract_config;
}
 
uint32_t CostmapPlannerExecution::makePlan(const geometry_msgs::PoseStamped &start,
                                           const geometry_msgs::PoseStamped &goal,
                                           double tolerance,
                                           std::vector<geometry_msgs::PoseStamped> &plan,
                                           double &cost,
                                           std::string &message)
{
  // transform the input to the global frame of the costmap, since this is an
  // "implicit" requirement for most planners
  // note: costmap_2d::Costmap2DROS::getTransformTolerance might be a good idea,
  // but it's not part of the class API in ros-kinetic
  const ros::Duration timeout(0.5);
  const std::string frame = costmap_ptr_->getGlobalFrameID();
  geometry_msgs::PoseStamped g_start, g_goal;
 
  if (!mbf_utility::transformPose(*tf_listener_ptr_, frame, timeout, start, g_start))
    return mbf_msgs::GetPathResult::TF_ERROR;
 
  if (!mbf_utility::transformPose(*tf_listener_ptr_, frame, timeout, goal, g_goal))
    return mbf_msgs::GetPathResult::TF_ERROR;
 
  if (lock_costmap_)
  {
    boost::unique_lock<costmap_2d::Costmap2D::mutex_t> lock(*(costmap_ptr_->getCostmap()->getMutex()));
    return planner_->makePlan(g_start, g_goal, tolerance, plan, cost, message);
  }
  return planner_->makePlan(g_start, g_goal, tolerance, plan, cost, message);
}
 
} /* namespace mbf_costmap_nav */