org.jscience.computing.ai
Class AStarMap

java.lang.Object
  org.jscience.computing.ai.util.StandardMap2D
      org.jscience.computing.ai.AStarMap

All Implemented Interfaces:

Navigable, Visualizable

public class AStarMap
extends StandardMap2D

AStarMap is simply derived from StandardMap2D to provide further functionality to visualize the A algorithm. It displays the map, start/goal positions, the best route as well as open and closed lists.

Field Summary

protected AStarPathfinder	aStar The pathfinder (used for drawing the routes).
protected Gradient	closedGradient The closed list gradient (blue).
protected int	gx Goal x-position.
protected int	gy Goal y-position.
protected Gradient	openGradient The open list gradient (red).
protected int	sx Start x-position.
protected int	sy Start y-position.

Fields inherited from class org.jscience.computing.ai.util.StandardMap2D

height, mapValues, renderSize, width

Constructor Summary

AStarMap()
Creates a new instance of AStarMap

AStarMap(java.awt.image.BufferedImage img)
Creates a new instance from a BufferedImage.

AStarMap(int width, int height)
Creates a new instance with dimensional information.

Method Summary

AStarPathfinder	getPathfinder() Return the pathfinder being used.
void	render(java.awt.Graphics g, int ww, int hh) Render the map.
void	setPathfinder(AStarPathfinder as) Set the pathfinder to display.

Methods inherited from class org.jscience.computing.ai.util.StandardMap2D

createNodeID, getCost, getDistance, getHeight, getRenderSize, getWidth, isValid, isValid, setMapAt, setRenderSize, writeImage

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

sx

protected int sx

Start x-position.

sy

protected int sy

Start y-position.

gx

protected int gx

Goal x-position.

gy

protected int gy

Goal y-position.

openGradient

protected Gradient openGradient

The open list gradient (red).

closedGradient

protected Gradient closedGradient

The closed list gradient (blue).

aStar

protected AStarPathfinder aStar

The pathfinder (used for drawing the routes).

Constructor Detail

AStarMap

public AStarMap()

Creates a new instance of AStarMap

AStarMap

public AStarMap(int width,
                int height)

Creates a new instance with dimensional information.

Parameters:

width - the width of the map.

height - the height of the map.

AStarMap

public AStarMap(java.awt.image.BufferedImage img)

Creates a new instance from a BufferedImage.

Parameters:

img - the image to be used as the map values.

Method Detail

setPathfinder

public void setPathfinder(AStarPathfinder as)

Set the pathfinder to display.

Parameters:

as - the pathfinder to display.

getPathfinder

public AStarPathfinder getPathfinder()

Return the pathfinder being used.

Returns:

the pathfinder.

render

public void render(java.awt.Graphics g,
                   int ww,
                   int hh)

Render the map.

Specified by:

render in interface Visualizable

Overrides:

render in class StandardMap2D

Parameters:

g - the graphics context.

ww - the content width.

hh - the context height.

See Also:

StandardMap2D.render(java.awt.Graphics, int,int)