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Tony Najjar
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nav2_collision_monitor/include/nav2_collision_monitor/collision_detector_node.hpp
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| // Copyright (c) 2022 Samsung R&D Institute Russia | ||
| // Copyright (c) 2023 Pixel Robotics GmbH | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
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| #ifndef NAV2_COLLISION_MONITOR__COLLISION_DETECTOR_NODE_HPP_ | ||
| #define NAV2_COLLISION_MONITOR__COLLISION_DETECTOR_NODE_HPP_ | ||
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| #include <string> | ||
| #include <vector> | ||
| #include <memory> | ||
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| #include "rclcpp/rclcpp.hpp" | ||
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| #include "tf2/time.h" | ||
| #include "tf2_ros/buffer.h" | ||
| #include "tf2_ros/transform_listener.h" | ||
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| #include "nav2_util/lifecycle_node.hpp" | ||
| #include "nav2_msgs/msg/collision_detector_state.hpp" | ||
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| #include "nav2_collision_monitor/types.hpp" | ||
| #include "nav2_collision_monitor/polygon.hpp" | ||
| #include "nav2_collision_monitor/circle.hpp" | ||
| #include "nav2_collision_monitor/source.hpp" | ||
| #include "nav2_collision_monitor/scan.hpp" | ||
| #include "nav2_collision_monitor/pointcloud.hpp" | ||
| #include "nav2_collision_monitor/range.hpp" | ||
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| namespace nav2_collision_monitor | ||
| { | ||
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| /** | ||
| * @brief Collision Monitor ROS2 node | ||
| */ | ||
| class CollisionDetector : public nav2_util::LifecycleNode | ||
| { | ||
| public: | ||
| /** | ||
| * @brief Constructor for the nav2_collision_monitor::CollisionDetector | ||
| * @param options Additional options to control creation of the node. | ||
| */ | ||
| explicit CollisionDetector(const rclcpp::NodeOptions & options = rclcpp::NodeOptions()); | ||
| /** | ||
| * @brief Destructor for the nav2_collision_monitor::CollisionDetector | ||
| */ | ||
| ~CollisionDetector(); | ||
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| protected: | ||
| /** | ||
| * @brief: Initializes and obtains ROS-parameters, creates main subscribers and publishers, | ||
| * creates polygons and data sources objects | ||
| * @param state Lifecycle Node's state | ||
| * @return Success or Failure | ||
| */ | ||
| nav2_util::CallbackReturn on_configure(const rclcpp_lifecycle::State & state) override; | ||
| /** | ||
| * @brief: Activates LifecyclePublishers, polygons and main processor, creates bond connection | ||
| * @param state Lifecycle Node's state | ||
| * @return Success or Failure | ||
| */ | ||
| nav2_util::CallbackReturn on_activate(const rclcpp_lifecycle::State & state) override; | ||
| /** | ||
| * @brief: Deactivates LifecyclePublishers, polygons and main processor, destroys bond connection | ||
| * @param state Lifecycle Node's state | ||
| * @return Success or Failure | ||
| */ | ||
| nav2_util::CallbackReturn on_deactivate(const rclcpp_lifecycle::State & state) override; | ||
| /** | ||
| * @brief: Resets all subscribers/publishers, polygons/data sources arrays | ||
| * @param state Lifecycle Node's state | ||
| * @return Success or Failure | ||
| */ | ||
| nav2_util::CallbackReturn on_cleanup(const rclcpp_lifecycle::State & state) override; | ||
| /** | ||
| * @brief Called in shutdown state | ||
| * @param state Lifecycle Node's state | ||
| * @return Success or Failure | ||
| */ | ||
| nav2_util::CallbackReturn on_shutdown(const rclcpp_lifecycle::State & state) override; | ||
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| protected: | ||
| /** | ||
| * @brief Supporting routine obtaining all ROS-parameters | ||
| * @return True if all parameters were obtained or false in failure case | ||
| */ | ||
| bool getParameters(); | ||
| /** | ||
| * @brief Supporting routine creating and configuring all polygons | ||
| * @param base_frame_id Robot base frame ID | ||
| * @param transform_tolerance Transform tolerance | ||
| * @return True if all polygons were configured successfully or false in failure case | ||
| */ | ||
| bool configurePolygons( | ||
| const std::string & base_frame_id, | ||
| const tf2::Duration & transform_tolerance); | ||
| /** | ||
| * @brief Supporting routine creating and configuring all data sources | ||
| * @param base_frame_id Robot base frame ID | ||
| * @param odom_frame_id Odometry frame ID. Used as global frame to get | ||
| * source->base time interpolated transform. | ||
| * @param transform_tolerance Transform tolerance | ||
| * @param source_timeout Maximum time interval in which data is considered valid | ||
| * @param base_shift_correction Whether to correct source data towards to base frame movement, | ||
| * considering the difference between current time and latest source time | ||
| * @return True if all sources were configured successfully or false in failure case | ||
| */ | ||
| bool configureSources( | ||
| const std::string & base_frame_id, | ||
| const std::string & odom_frame_id, | ||
| const tf2::Duration & transform_tolerance, | ||
| const rclcpp::Duration & source_timeout, | ||
| const bool base_shift_correction); | ||
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| /** | ||
| * @brief Main processing routine | ||
| */ | ||
| void process(); | ||
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| /** | ||
| * @brief Polygons publishing routine. Made for visualization. | ||
| */ | ||
| void publishPolygons() const; | ||
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| // ----- Variables ----- | ||
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| /// @brief TF buffer | ||
| std::shared_ptr<tf2_ros::Buffer> tf_buffer_; | ||
| /// @brief TF listener | ||
| std::shared_ptr<tf2_ros::TransformListener> tf_listener_; | ||
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| /// @brief Polygons array | ||
| std::vector<std::shared_ptr<Polygon>> polygons_; | ||
| /// @brief Data sources array | ||
| std::vector<std::shared_ptr<Source>> sources_; | ||
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| /// @brief collision monitor state publisher | ||
| rclcpp_lifecycle::LifecyclePublisher<nav2_msgs::msg::CollisionDetectorState>::SharedPtr | ||
| state_pub_; | ||
| /// @brief timer that runs actions | ||
| rclcpp::TimerBase::SharedPtr timer_; | ||
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| /// @brief main loop frequency | ||
| double frequency_; | ||
| }; // class CollisionDetector | ||
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| } // namespace nav2_collision_monitor | ||
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| #endif // NAV2_COLLISION_MONITOR__COLLISION_DETECTOR_NODE_HPP_ |
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