burlap.behavior.singleagent.auxiliary.gridset

Class OOStateGridder

java.lang.Object

burlap.behavior.singleagent.auxiliary.gridset.OOStateGridder

public class OOStateGridder
extends java.lang.Object

This class is used to generate a set of continuous states that are spaced over grid points that are factored as and OO-MDP using OOState. This class will generate a grid along dimensions for objects in the state belonging to specified classes. To set the dimensions of objects of a specific object class to be part of the grid, use the gridObjectClass(String, FlatStateGridder) method.

In principle, the FlatStateGridder could be used to accomplish the same effect, but grids would have to be specified for every object-dimension pair. That is, if there are two objects of the same class, a FlatStateGridder would require you independently set the grid specification for object. This class streamlines that process by having you specify the gridding along each object class of interest, and it will automatically replicate the grid specification for each object in the state that belongs to that class.

Grid a state with the gridState(MutableOOState) method. If the state contains objects that belong to classes that do not have grid specifications assigned for them, then they will be held constant in the returned states.

Author:

James MacGlashan.

Field Summary

Fields

Modifier and Type	Field and Description
protected java.util.Map<java.lang.String,FlatStateGridder>	classesToGrid

Constructor Summary

Constructors

Constructor and Description
OOStateGridder()

Method Summary

Modifier and Type	Method and Description
OOStateGridder	gridObjectClass(java.lang.String className, FlatStateGridder gridder) Specifies the gridding for a given object class.
java.util.List<State>	gridState(MutableOOState s) Generates a set of states spaced along along.

Methods inherited from class java.lang.Object

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

Field Detail

classesToGrid

protected java.util.Map<java.lang.String,FlatStateGridder> classesToGrid

Constructor Detail

OOStateGridder

public OOStateGridder()

Method Detail

gridObjectClass

public OOStateGridder gridObjectClass(java.lang.String className,
                                      FlatStateGridder gridder)

Specifies the gridding for a given object class.

Parameters:

className - the OO-MDP object class name

gridder - the gridding specification along objects of that class

Returns:

this object, so that the builder paradigm can be used for specifying multiple class griddings.

gridState

public java.util.List<State> gridState(MutableOOState s)

Generates a set of states spaced along along. If there are objects in the input state for which a gridding has not been specified, objects of those classes will be held constant in the returned states over the grid.

Parameters:

s - the input state to grid

Returns:

a set of states spaced along along