A ROS wrapper for a 2D Costmap. Handles subscribing to topics that provide observations about obstacles in either the form of PointCloud or LaserScan messages. More...

#include <costmap_2d_ros.h>

Public Member Functions
	Costmap2DROS (std::string name, tf::TransformListener &tf)
	Constructor for the wrapper. More...

std::string	getBaseFrameID ()
	Returns the local frame of the costmap. More...

Costmap2D *	getCostmap ()
	Return a pointer to the "master" costmap which receives updates from all the layers. More...

std::string	getGlobalFrameID ()
	Returns the global frame of the costmap. More...

LayeredCostmap *	getLayeredCostmap ()

std::string	getName () const
	Returns costmap name. More...

void	getOrientedFootprint (std::vector< geometry_msgs::Point > &oriented_footprint) const
	Build the oriented footprint of the robot at the robot's current pose. More...

std::vector< geometry_msgs::Point >	getRobotFootprint ()
	Return the current footprint of the robot as a vector of points. More...

geometry_msgs::Polygon	getRobotFootprintPolygon ()
	Returns the current padded footprint as a geometry_msgs::Polygon. More...

bool	getRobotPose (tf::Stamped< tf::Pose > &global_pose) const
	Get the pose of the robot in the global frame of the costmap. More...

double	getTransformTolerance () const
	Returns the delay in transform (tf) data that is tolerable in seconds. More...

std::vector< geometry_msgs::Point >	getUnpaddedRobotFootprint ()
	Return the current unpadded footprint of the robot as a vector of points. More...

bool	isCurrent ()
	Same as getLayeredCostmap()->isCurrent(). More...

void	pause ()
	Stops the costmap from updating, but sensor data still comes in over the wire. More...

void	resetLayers ()
	Reset each individual layer. More...

void	resume ()
	Resumes costmap updates. More...

void	setUnpaddedRobotFootprint (const std::vector< geometry_msgs::Point > &points)
	Set the footprint of the robot to be the given set of points, padded by footprint_padding. More...

void	setUnpaddedRobotFootprintPolygon (const geometry_msgs::Polygon &footprint)
	Set the footprint of the robot to be the given polygon, padded by footprint_padding. More...

void	start ()
	Subscribes to sensor topics if necessary and starts costmap updates, can be called to restart the costmap after calls to either stop() or pause() More...

void	stop ()
	Stops costmap updates and unsubscribes from sensor topics. More...

void	updateMap ()

	~Costmap2DROS ()

Protected Attributes
std::string	global_frame_
	The global frame for the costmap. More...

LayeredCostmap *	layered_costmap_

std::string	name_

std::string	robot_base_frame_
	The frame_id of the robot base. More...

tf::TransformListener &	tf_
	Used for transforming point clouds. More...

double	transform_tolerance_
	timeout before transform errors More...

Private Member Functions
void	mapUpdateLoop (double frequency)

void	movementCB (const ros::TimerEvent &event)

void	readFootprintFromConfig (const costmap_2d::Costmap2DConfig &new_config, const costmap_2d::Costmap2DConfig &old_config)
	Set the footprint from the new_config object. More...

void	reconfigureCB (costmap_2d::Costmap2DConfig &config, uint32_t level)

void	resetOldParameters (ros::NodeHandle &nh)

Private Attributes
boost::recursive_mutex	configuration_mutex_

dynamic_reconfigure::Server< costmap_2d::Costmap2DConfig > *	dsrv_

float	footprint_padding_

ros::Publisher	footprint_pub_

ros::Subscriber	footprint_sub_

bool	initialized_

ros::Time	last_publish_

boost::thread *	map_update_thread_
	A thread for updating the map. More...

bool	map_update_thread_shutdown_

costmap_2d::Costmap2DConfig	old_config_

tf::Stamped< tf::Pose >	old_pose_

std::vector< geometry_msgs::Point >	padded_footprint_

pluginlib::ClassLoader< Layer >	plugin_loader_

ros::Duration	publish_cycle

Costmap2DPublisher *	publisher_

bool	robot_stopped_

bool	stop_updates_

bool	stopped_

ros::Timer	timer_

std::vector< geometry_msgs::Point >	unpadded_footprint_

Detailed Description

A ROS wrapper for a 2D Costmap. Handles subscribing to topics that provide observations about obstacles in either the form of PointCloud or LaserScan messages.

Definition at line 72 of file costmap_2d_ros.h.

Constructor & Destructor Documentation

costmap_2d::Costmap2DROS::Costmap2DROS	(	std::string	name,
		tf::TransformListener &	tf
	)

Constructor for the wrapper.

Parameters

name	The name for this costmap
tf	A reference to a TransformListener

Definition at line 62 of file costmap_2d_ros.cpp.

costmap_2d::Costmap2DROS::~Costmap2DROS ( )

Definition at line 189 of file costmap_2d_ros.cpp.

Member Function Documentation

std::string costmap_2d::Costmap2DROS::getBaseFrameID ( )

inline

Returns the local frame of the costmap.

Returns: The local frame of the costmap

Definition at line 158 of file costmap_2d_ros.h.

Costmap2D* costmap_2d::Costmap2DROS::getCostmap ( )

inline

Return a pointer to the "master" costmap which receives updates from all the layers.

Same as calling getLayeredCostmap()->getCostmap().

Definition at line 140 of file costmap_2d_ros.h.

std::string costmap_2d::Costmap2DROS::getGlobalFrameID ( )

inline

Returns the global frame of the costmap.

Returns: The global frame of the costmap

Definition at line 149 of file costmap_2d_ros.h.

LayeredCostmap* costmap_2d::Costmap2DROS::getLayeredCostmap ( )

inline

Definition at line 162 of file costmap_2d_ros.h.

std::string costmap_2d::Costmap2DROS::getName ( ) const

inline

Returns costmap name.

Definition at line 126 of file costmap_2d_ros.h.

void costmap_2d::Costmap2DROS::getOrientedFootprint ( std::vector< geometry_msgs::Point > & oriented_footprint ) const

Build the oriented footprint of the robot at the robot's current pose.

Parameters

oriented_footprint Will be filled with the points in the oriented footprint of the robot

Definition at line 561 of file costmap_2d_ros.cpp.

std::vector<geometry_msgs::Point> costmap_2d::Costmap2DROS::getRobotFootprint ( )

inline

Return the current footprint of the robot as a vector of points.

This version of the footprint is padded by the footprint_padding_ distance, set in the rosparam "footprint_padding".

The footprint initially comes from the rosparam "footprint" but can be overwritten by dynamic reconfigure or by messages received on the "footprint" topic.

Definition at line 181 of file costmap_2d_ros.h.

geometry_msgs::Polygon costmap_2d::Costmap2DROS::getRobotFootprintPolygon ( )

inline

Returns the current padded footprint as a geometry_msgs::Polygon.

Definition at line 168 of file costmap_2d_ros.h.

bool costmap_2d::Costmap2DROS::getRobotPose ( tf::Stamped< tf::Pose > & global_pose ) const

Get the pose of the robot in the global frame of the costmap.

Parameters

global_pose Will be set to the pose of the robot in the global frame of the costmap

Returns: True if the pose was set successfully, false otherwise

Definition at line 520 of file costmap_2d_ros.cpp.

double costmap_2d::Costmap2DROS::getTransformTolerance ( ) const

inline

Returns the delay in transform (tf) data that is tolerable in seconds.

Definition at line 132 of file costmap_2d_ros.h.

std::vector<geometry_msgs::Point> costmap_2d::Costmap2DROS::getUnpaddedRobotFootprint ( )

inline

Return the current unpadded footprint of the robot as a vector of points.

This is the raw version of the footprint without padding.

The footprint initially comes from the rosparam "footprint" but can be overwritten by dynamic reconfigure or by messages received on the "footprint" topic.

Definition at line 193 of file costmap_2d_ros.h.

bool costmap_2d::Costmap2DROS::isCurrent ( )

inline

Same as getLayeredCostmap()->isCurrent().

Definition at line 113 of file costmap_2d_ros.h.

void costmap_2d::Costmap2DROS::mapUpdateLoop ( double frequency )

private

Definition at line 388 of file costmap_2d_ros.cpp.

void costmap_2d::Costmap2DROS::movementCB ( const ros::TimerEvent & event )

private

Definition at line 362 of file costmap_2d_ros.cpp.

void costmap_2d::Costmap2DROS::pause ( )

Stops the costmap from updating, but sensor data still comes in over the wire.

Definition at line 491 of file costmap_2d_ros.cpp.

void costmap_2d::Costmap2DROS::readFootprintFromConfig	(	const costmap_2d::Costmap2DConfig &	new_config,
		const costmap_2d::Costmap2DConfig &	old_config
	)

private

Set the footprint from the new_config object.

If the values of footprint and robot_radius are the same in new_config and old_config, nothing is changed.

Definition at line 321 of file costmap_2d_ros.cpp.

void costmap_2d::Costmap2DROS::reconfigureCB	(	costmap_2d::Costmap2DConfig &	config,
		uint32_t	level
	)

private

Definition at line 277 of file costmap_2d_ros.cpp.

void costmap_2d::Costmap2DROS::resetLayers ( )

Reset each individual layer.

Definition at line 508 of file costmap_2d_ros.cpp.

void costmap_2d::Costmap2DROS::resetOldParameters ( ros::NodeHandle & nh )

private

Definition at line 204 of file costmap_2d_ros.cpp.

void costmap_2d::Costmap2DROS::resume ( )

Resumes costmap updates.

Definition at line 497 of file costmap_2d_ros.cpp.

void costmap_2d::Costmap2DROS::setUnpaddedRobotFootprint ( const std::vector< geometry_msgs::Point > & points )

Set the footprint of the robot to be the given set of points, padded by footprint_padding.

Should be a convex polygon, though this is not enforced.

First expands the given polygon by footprint_padding_ and then sets padded_footprint_ and calls layered_costmap_->setFootprint(). Also saves the unpadded footprint, which is available from getUnpaddedRobotFootprint().

Definition at line 353 of file costmap_2d_ros.cpp.

void costmap_2d::Costmap2DROS::setUnpaddedRobotFootprintPolygon ( const geometry_msgs::Polygon & footprint )

Set the footprint of the robot to be the given polygon, padded by footprint_padding.

Should be a convex polygon, though this is not enforced.

First expands the given polygon by footprint_padding_ and then sets padded_footprint_ and calls layered_costmap_->setFootprint(). Also saves the unpadded footprint, which is available from getUnpaddedRobotFootprint().

Definition at line 184 of file costmap_2d_ros.cpp.

void costmap_2d::Costmap2DROS::start ( )

Subscribes to sensor topics if necessary and starts costmap updates, can be called to restart the costmap after calls to either stop() or pause()

Definition at line 455 of file costmap_2d_ros.cpp.

void costmap_2d::Costmap2DROS::stop ( )

Stops costmap updates and unsubscribes from sensor topics.

Definition at line 477 of file costmap_2d_ros.cpp.

void costmap_2d::Costmap2DROS::updateMap ( )

Definition at line 430 of file costmap_2d_ros.cpp.

Member Data Documentation

boost::recursive_mutex costmap_2d::Costmap2DROS::configuration_mutex_

private

Definition at line 259 of file costmap_2d_ros.h.

dynamic_reconfigure::Server<costmap_2d::Costmap2DConfig>* costmap_2d::Costmap2DROS::dsrv_

private

Definition at line 257 of file costmap_2d_ros.h.

float costmap_2d::Costmap2DROS::footprint_padding_

private

Definition at line 265 of file costmap_2d_ros.h.

ros::Publisher costmap_2d::Costmap2DROS::footprint_pub_

private

Definition at line 262 of file costmap_2d_ros.h.

ros::Subscriber costmap_2d::Costmap2DROS::footprint_sub_

private

Definition at line 261 of file costmap_2d_ros.h.

std::string costmap_2d::Costmap2DROS::global_frame_

protected

The global frame for the costmap.

Definition at line 232 of file costmap_2d_ros.h.

bool costmap_2d::Costmap2DROS::initialized_

private

Definition at line 249 of file costmap_2d_ros.h.

ros::Time costmap_2d::Costmap2DROS::last_publish_

private

Definition at line 252 of file costmap_2d_ros.h.

LayeredCostmap* costmap_2d::Costmap2DROS::layered_costmap_

protected

Definition at line 229 of file costmap_2d_ros.h.

boost::thread* costmap_2d::Costmap2DROS::map_update_thread_

private

A thread for updating the map.

Definition at line 250 of file costmap_2d_ros.h.

bool costmap_2d::Costmap2DROS::map_update_thread_shutdown_

private

Definition at line 248 of file costmap_2d_ros.h.

std::string costmap_2d::Costmap2DROS::name_

protected

Definition at line 230 of file costmap_2d_ros.h.

costmap_2d::Costmap2DConfig costmap_2d::Costmap2DROS::old_config_

private

Definition at line 266 of file costmap_2d_ros.h.

tf::Stamped<tf::Pose> costmap_2d::Costmap2DROS::old_pose_

private

Definition at line 255 of file costmap_2d_ros.h.

std::vector<geometry_msgs::Point> costmap_2d::Costmap2DROS::padded_footprint_

private

Definition at line 264 of file costmap_2d_ros.h.

pluginlib::ClassLoader<Layer> costmap_2d::Costmap2DROS::plugin_loader_

private

Definition at line 254 of file costmap_2d_ros.h.

ros::Duration costmap_2d::Costmap2DROS::publish_cycle

private

Definition at line 253 of file costmap_2d_ros.h.

Costmap2DPublisher* costmap_2d::Costmap2DROS::publisher_

private

Definition at line 256 of file costmap_2d_ros.h.

std::string costmap_2d::Costmap2DROS::robot_base_frame_

protected

The frame_id of the robot base.

Definition at line 233 of file costmap_2d_ros.h.

bool costmap_2d::Costmap2DROS::robot_stopped_

private

Definition at line 249 of file costmap_2d_ros.h.

bool costmap_2d::Costmap2DROS::stop_updates_

private

Definition at line 249 of file costmap_2d_ros.h.

bool costmap_2d::Costmap2DROS::stopped_

private

Definition at line 249 of file costmap_2d_ros.h.

tf::TransformListener& costmap_2d::Costmap2DROS::tf_

protected

Used for transforming point clouds.

Definition at line 231 of file costmap_2d_ros.h.

ros::Timer costmap_2d::Costmap2DROS::timer_

private

Definition at line 251 of file costmap_2d_ros.h.

double costmap_2d::Costmap2DROS::transform_tolerance_

protected

timeout before transform errors

Definition at line 234 of file costmap_2d_ros.h.

std::vector<geometry_msgs::Point> costmap_2d::Costmap2DROS::unpadded_footprint_

private

Definition at line 263 of file costmap_2d_ros.h.

The documentation for this class was generated from the following files:

Public Member Functions

Protected Attributes

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation