aim4.map.track
Class ArcTrack.Position

java.lang.Object
  aim4.map.track.ArcTrack.Position

All Implemented Interfaces:

TrackPosition

Enclosing class:

ArcTrack

public class ArcTrack.Position
extends Object
implements TrackPosition

A position of the arc-shape track.

Constructor Summary

ArcTrack.Position(double dist)
Create a position object at the given distance from the starting waypoint on this track

Method Summary

double	getTangentSlope() Get the slope of the tangent at the location.
double	getX() Get the x-coordinate of the current position.
double	getY() Get the y-coordinate of the current position.
double	move(double dist) Move the position by a certain distance on the track but not beyond the end waypoint.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

ArcTrack.Position

public ArcTrack.Position(double dist)

Create a position object at the given distance from the starting waypoint on this track

Parameters:

dist - the distance

Method Detail

getX

public double getX()

Get the x-coordinate of the current position.

Specified by:

getX in interface TrackPosition

Returns:

the x-coordinate of the current position.

getY

public double getY()

Get the y-coordinate of the current position.

Specified by:

getY in interface TrackPosition

Returns:

the y-coordinate of the current position.

getTangentSlope

public double getTangentSlope()

Get the slope of the tangent at the location.

Specified by:

getTangentSlope in interface TrackPosition

Returns:

The slope of the tangent at the location.

move

public double move(double dist)

Move the position by a certain distance on the track but not beyond the end waypoint. Return the remaining distance if it moves beyond the end waypoint.

Specified by:

move in interface TrackPosition

Parameters:

dist - the distance

Returns:

the remaining distance of the traversal; exactly 0 (that can be tested with "== 0.0") if the traversal has not reached the end waypoint.

toString

public String toString()

Overrides:

toString in class Object