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base_local_planner::MapGrid Class Reference

A grid of MapCell cells that is used to propagate path and goal distances for the trajectory controller. More...

#include <map_grid.h>

List of all members.

Public Member Functions

void commonInit ()
 Utility to share initialization code across constructors.
void computeGoalDistance (std::queue< MapCell * > &dist_queue, const costmap_2d::Costmap2D &costmap)
 Compute the distance from each cell in the local map grid to the local goal point.
void computePathDistance (std::queue< MapCell * > &dist_queue, const costmap_2d::Costmap2D &costmap)
 Compute the distance from each cell in the local map grid to the planned path.
MapCellgetCell (unsigned int x, unsigned int y)
size_t getIndex (int x, int y)
 Returns a 1D index into the MapCell array for a 2D index.
 MapGrid (const MapGrid &mg)
 Copy constructor for a MapGrid.
 MapGrid (unsigned int size_x, unsigned int size_y, double scale, double x, double y)
 Creates a map of size_x by size_y with the desired scale and origin.
 MapGrid (unsigned int size_x, unsigned int size_y)
 Creates a map of size_x by size_y.
 MapGrid ()
 Creates a 0x0 map by default.
MapCell operator() (unsigned int x, unsigned int y) const
 Returns a map cell accessed by (col, row).
MapCelloperator() (unsigned int x, unsigned int y)
 Returns a map cell accessed by (col, row).
MapGridoperator= (const MapGrid &mg)
 Assignment operator for a MapGrid.
void resetPathDist ()
 reset path distance fields for all cells
void setPathCells (const costmap_2d::Costmap2D &costmap, const std::vector< geometry_msgs::PoseStamped > &global_plan)
 Update what cells are considered path based on the global plan.
void sizeCheck (unsigned int size_x, unsigned int size_y, double o_x, double o_y)
 check if we need to resize
void updateGoalCell (MapCell *current_cell, MapCell *check_cell, std::queue< MapCell * > &dist_queue, const costmap_2d::Costmap2D &costmap)
 Used to update the distance of a cell in goal distance computation.
void updatePathCell (MapCell *current_cell, MapCell *check_cell, std::queue< MapCell * > &dist_queue, const costmap_2d::Costmap2D &costmap)
 Used to update the distance of a cell in path distance computation.
 ~MapGrid ()
 Destructor for a MapGrid.

Public Attributes

double goal_x_
double goal_y_
 The goal distance was last computed from.
std::vector< MapCellmap_
 Storage for the MapCells.
double origin_x
double origin_y
 lower left corner of grid in world space
double scale
 grid scale in meters/cell
unsigned int size_x_
unsigned int size_y_
 The dimensions of the grid.

Detailed Description

A grid of MapCell cells that is used to propagate path and goal distances for the trajectory controller.

Definition at line 52 of file map_grid.h.


Constructor & Destructor Documentation

base_local_planner::MapGrid::MapGrid (  ) 

Creates a 0x0 map by default.

Definition at line 40 of file map_grid.cpp.

base_local_planner::MapGrid::MapGrid ( unsigned int  size_x,
unsigned int  size_y 
)

Creates a map of size_x by size_y.

Parameters:
size_x The width of the map
size_y The height of the map

Definition at line 45 of file map_grid.cpp.

base_local_planner::MapGrid::MapGrid ( unsigned int  size_x,
unsigned int  size_y,
double  scale,
double  x,
double  y 
)

Creates a map of size_x by size_y with the desired scale and origin.

Parameters:
size_x The width of the map
size_y The height of the map
scale The resolution of each MapCell
x The x coordinate of the origin of the map
y The y coordinate of the origin of the map

Definition at line 51 of file map_grid.cpp.

base_local_planner::MapGrid::~MapGrid (  )  [inline]

Destructor for a MapGrid.

Definition at line 103 of file map_grid.h.

base_local_planner::MapGrid::MapGrid ( const MapGrid mg  ) 

Copy constructor for a MapGrid.

Parameters:
mg The MapGrid to copy

Definition at line 57 of file map_grid.cpp.


Member Function Documentation

void base_local_planner::MapGrid::commonInit (  ) 

Utility to share initialization code across constructors.

Definition at line 63 of file map_grid.cpp.

void base_local_planner::MapGrid::computeGoalDistance ( std::queue< MapCell * > &  dist_queue,
const costmap_2d::Costmap2D costmap 
)

Compute the distance from each cell in the local map grid to the local goal point.

Parameters:
goal_queue A queue containing the local goal cell
void base_local_planner::MapGrid::computePathDistance ( std::queue< MapCell * > &  dist_queue,
const costmap_2d::Costmap2D costmap 
)

Compute the distance from each cell in the local map grid to the planned path.

Parameters:
dist_queue A queue of the initial cells on the path
MapCell& base_local_planner::MapGrid::getCell ( unsigned int  x,
unsigned int  y 
) [inline]

Definition at line 96 of file map_grid.h.

size_t base_local_planner::MapGrid::getIndex ( int  x,
int  y 
)

Returns a 1D index into the MapCell array for a 2D index.

Parameters:
x The desired x coordinate
y The desired y coordinate
Returns:
The associated 1D index

Definition at line 79 of file map_grid.cpp.

MapCell base_local_planner::MapGrid::operator() ( unsigned int  x,
unsigned int  y 
) const [inline]

Returns a map cell accessed by (col, row).

Parameters:
x The x coordinate of the cell
y The y coordinate of the cell
Returns:
A copy of the desired cell

Definition at line 92 of file map_grid.h.

MapCell& base_local_planner::MapGrid::operator() ( unsigned int  x,
unsigned int  y 
) [inline]

Returns a map cell accessed by (col, row).

Parameters:
x The x coordinate of the cell
y The y coordinate of the cell
Returns:
A reference to the desired cell

Definition at line 82 of file map_grid.h.

MapGrid & base_local_planner::MapGrid::operator= ( const MapGrid mg  ) 

Assignment operator for a MapGrid.

Parameters:
mg The MapGrid to assign from

Definition at line 83 of file map_grid.cpp.

void base_local_planner::MapGrid::resetPathDist (  ) 

reset path distance fields for all cells

Definition at line 111 of file map_grid.cpp.

void base_local_planner::MapGrid::setPathCells ( const costmap_2d::Costmap2D costmap,
const std::vector< geometry_msgs::PoseStamped > &  global_plan 
)

Update what cells are considered path based on the global plan.

Definition at line 122 of file map_grid.cpp.

void base_local_planner::MapGrid::sizeCheck ( unsigned int  size_x,
unsigned int  size_y,
double  o_x,
double  o_y 
)

check if we need to resize

Parameters:
size_x The desired width
size_y The desired height
o_x the desired x coordinate of the origin
o_y the desired y coordinate of the origin

Definition at line 90 of file map_grid.cpp.

void base_local_planner::MapGrid::updateGoalCell ( MapCell current_cell,
MapCell check_cell,
std::queue< MapCell * > &  dist_queue,
const costmap_2d::Costmap2D costmap 
) [inline]

Used to update the distance of a cell in goal distance computation.

Parameters:
current_cell The cell we're currently in
check_cell The cell to be updated

mark the cell as visited

Definition at line 173 of file map_grid.h.

void base_local_planner::MapGrid::updatePathCell ( MapCell current_cell,
MapCell check_cell,
std::queue< MapCell * > &  dist_queue,
const costmap_2d::Costmap2D costmap 
) [inline]

Used to update the distance of a cell in path distance computation.

Parameters:
current_cell The cell we're currently in
check_cell The cell to be updated

Definition at line 149 of file map_grid.h.


Member Data Documentation

Definition at line 214 of file map_grid.h.

The goal distance was last computed from.

Definition at line 214 of file map_grid.h.

Storage for the MapCells.

Definition at line 210 of file map_grid.h.

Definition at line 216 of file map_grid.h.

lower left corner of grid in world space

Definition at line 216 of file map_grid.h.

grid scale in meters/cell

Definition at line 212 of file map_grid.h.

Definition at line 209 of file map_grid.h.

The dimensions of the grid.

Definition at line 209 of file map_grid.h.


The documentation for this class was generated from the following files:
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base_local_planner
Author(s): Eitan Marder-Eppstein, Eric Perko
autogenerated on Fri Mar 1 16:10:18 2013