aim4.im
Class RoadBasedIntersection

java.lang.Object
  aim4.im.RoadBasedIntersection

All Implemented Interfaces:

Intersection

public class RoadBasedIntersection
extends Object
implements Intersection

An intersection that is defined by the intersection of a set of roads.

Field Summary

static double

EXPANSION_DISTANCE The distance outside of the strict intersection that the IntersectionManager will control, in meters.

Constructor Summary

RoadBasedIntersection(List<Road> roads)
Basic class constructor.

Method Summary

Constants.TurnDirection	calcTurnDirection(Lane currentLane, Lane departureLane) Get the turn direction of the vehicle at the next intersection.
Area	getArea() Get the Area controlled by this intersection manager.
Area	getAreaPlus() Get the area slightly larger than the area controlled by this intersection manager.
Rectangle2D	getBoundingBox() Get the minimal rectangular region that encloses the intersection.
Point2D	getCentroid() Get the centroid of the intersection manager.
List<Path2D>	getEdges() Get the list of edges.
double	getEntryHeading(Lane l) Get the heading at which the given lane enters the intersection.
List<Lane>	getEntryLanes() Get the Lanes that enter the space governed by this intersection manager.
WayPoint	getEntryPoint(Lane l) Get the Point at which the given Lane enters the intersection.
List<Road>	getEntryRoads() Get the Roads that enter the space governed by this intersection manager.
double	getExitHeading(Lane l) Get the heading at which the given Lane exits the intersection.
List<Lane>	getExitLanes() Get the Lanes that exit the space governed by this intersection manager.
WayPoint	getExitPoint(Lane l) Get the Point at which the given Lane exits the intersection.
List<Road>	getExitRoads() Get the Roads that exit the space governed by this intersection manager.
List<Lane>	getLanes() Get the Lanes incident to the space governed by this intersection.
List<Road>	getRoads() Get the Roads incident to the space governed by this intersection.
boolean	isEnteredBy(Lane l) Whether the given Lane enters this intersection.
boolean	isExitedBy(Lane l) Whether the given Lane leaves this intersection.

Methods inherited from class java.lang.Object

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

Field Detail

EXPANSION_DISTANCE

public static final double EXPANSION_DISTANCE

The distance outside of the strict intersection that the IntersectionManager will control, in meters. 4.0 meters. This gives room for things like crosswalks.

See Also:

Constant Field Values

Constructor Detail

RoadBasedIntersection

public RoadBasedIntersection(List<Road> roads)

Basic class constructor. Takes the Roads for which an IntersectionManager is needed and extracts all the necessary information.

Parameters:

roads - a list of Roads whose intersection this IntersectionManager will manage

Method Detail

getRoads

public List<Road> getRoads()

Get the Roads incident to the space governed by this intersection.

Specified by:

getRoads in interface Intersection

Returns:

the roads managed by this intersection.

getLanes

public List<Lane> getLanes()

Get the Lanes incident to the space governed by this intersection.

Specified by:

getLanes in interface Intersection

Returns:

the lanes managed by this intersection.

getArea

public Area getArea()

Get the Area controlled by this intersection manager.

Specified by:

getArea in interface Intersection

Returns:

the Area controlled by this intersection manager

getAreaPlus

public Area getAreaPlus()

Get the area slightly larger than the area controlled by this intersection manager.

Specified by:

getAreaPlus in interface Intersection

Returns:

the Area controlled by this intersection manager

getCentroid

public Point2D getCentroid()

Get the centroid of the intersection manager.

Specified by:

getCentroid in interface Intersection

Returns:

the centroid of the intersection manager

getBoundingBox

public Rectangle2D getBoundingBox()

Get the minimal rectangular region that encloses the intersection.

Specified by:

getBoundingBox in interface Intersection

Returns:

the minimal rectangular region that encloses the intersection

getEdges

public List<Path2D> getEdges()

Get the list of edges.

Returns:

the list of edges

getEntryRoads

public List<Road> getEntryRoads()

Get the Roads that enter the space governed by this intersection manager.

Specified by:

getEntryRoads in interface Intersection

Returns:

the Roads that enter the space governed by this IntersectionManager

getEntryLanes

public List<Lane> getEntryLanes()

Get the Lanes that enter the space governed by this intersection manager.

Specified by:

getEntryLanes in interface Intersection

Returns:

the Lanes that enter the space governed by this IntersectionManager

isEnteredBy

public boolean isEnteredBy(Lane l)

Whether the given Lane enters this intersection.

Specified by:

isEnteredBy in interface Intersection

Parameters:

l - the Lane to consider

Returns:

whether the Lane enters this intersection

getEntryPoint

public WayPoint getEntryPoint(Lane l)

Get the Point at which the given Lane enters the intersection.

Specified by:

getEntryPoint in interface Intersection

Parameters:

l - the Lane

Returns:

the Point at which the given Lane enters the intersection, or null if it does not

getEntryHeading

public double getEntryHeading(Lane l)

Get the heading at which the given lane enters the intersection.

Specified by:

getEntryHeading in interface Intersection

Parameters:

l - the Lane

Returns:

the heading at which the Lane enters the intersection

getExitRoads

public List<Road> getExitRoads()

Get the Roads that exit the space governed by this intersection manager.

Specified by:

getExitRoads in interface Intersection

Returns:

the Roads that exit the space governed by this IntersectionManager

getExitLanes

public List<Lane> getExitLanes()

Get the Lanes that exit the space governed by this intersection manager.

Specified by:

getExitLanes in interface Intersection

Returns:

the Lanes that exit the space governed by this IntersectionManager

isExitedBy

public boolean isExitedBy(Lane l)

Whether the given Lane leaves this intersection.

Specified by:

isExitedBy in interface Intersection

Parameters:

l - the Lane to consider

Returns:

whether the Lane exits this intersection

getExitPoint

public WayPoint getExitPoint(Lane l)

Get the Point at which the given Lane exits the intersection.

Specified by:

getExitPoint in interface Intersection

Parameters:

l - the Lane

Returns:

the Point at which the given Lane exits the intersection, or null if it does not

getExitHeading

public double getExitHeading(Lane l)

Get the heading at which the given Lane exits the intersection.

Specified by:

getExitHeading in interface Intersection

Parameters:

l - the Lane

Returns:

the heading at which the Lane exits the intersection

calcTurnDirection

public Constants.TurnDirection calcTurnDirection(Lane currentLane,
                                                 Lane departureLane)

Get the turn direction of the vehicle at the next intersection.

Specified by:

calcTurnDirection in interface Intersection

Parameters:

currentLane - the current lane.

departureLane - the departure lane.

Returns:

the turn direction of the vehicle at the next intersection