aim4.map.track
Interface TrackPosition

All Known Implementing Classes:

ArcTrack.Position, LineTrack.Position, PathTrack.Position

public interface TrackPosition

A position on a 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.

Method Detail

getX

double getX()

Get the x-coordinate of the current position.

Returns:

the x-coordinate of the current position.

getY

double getY()

Get the y-coordinate of the current position.

Returns:

the y-coordinate of the current position.

getTangentSlope

double getTangentSlope()

Get the slope of the tangent at the location.

Returns:

The slope of the tangent at the location.

move

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.

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.