jmri.jmrit.tracker
Class StoppingBlock

java.lang.Object
  jmri.jmrit.tracker.StoppingBlock

public class StoppingBlock
extends Object

Stop a train in a block if required.

Watches a Block object that is passing around a Throttle object as it's value. When the Block goes OCCUPIED, check whether a signal is telling the train to stop; if so, force the Throttle to zero speed.

This contains multiple SignalHead objects, each associated with a Path that contains one or more BeanSettings (e.g. Turnout positions) and directions. When needed, this consults the paths to see which one is active (has it's Turnouts set) and corresponds to the current direction of the block. There should be exactly one of these, which will then identify which signal to monitor.

Limitations:

• Current implementation does not protect against changing direction and backing out of the block
• Should track speed at time of stop and restore it on restart (or should it not restart? Optional restart?)

Author:

Bob Jacobsen Copyright (C) 2006

Constructor Summary

StoppingBlock(Block b)

Method Summary

void	addSignal(SignalHead s, int dir)
void	addSignal(SignalHead s1, SignalHead s2, int dir)
void	setSpeeds(float s, float f)

Methods inherited from class java.lang.Object

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

Constructor Detail

StoppingBlock

public StoppingBlock(Block b)

Method Detail

addSignal

public void addSignal(SignalHead s,
                      int dir)

addSignal

public void addSignal(SignalHead s1,
                      SignalHead s2,
                      int dir)

setSpeeds

public void setSpeeds(float s,
                      float f)