Package ptolemy.actor.lib.gui

Class XYScope

java.lang.Object

ptolemy.kernel.util.NamedObj

ptolemy.kernel.InstantiableNamedObj

ptolemy.kernel.Entity<T>

ptolemy.kernel.ComponentEntity<T>

ptolemy.actor.AtomicActor<TypedIOPort>

ptolemy.actor.TypedAtomicActor

ptolemy.actor.lib.gui.PlotterBase

ptolemy.actor.lib.gui.Plotter

ptolemy.actor.lib.gui.XYPlotter

ptolemy.actor.lib.gui.XYScope

All Implemented Interfaces:

java.lang.Cloneable, Actor, Executable, FiringsRecordable, Initializable, PortablePlaceable, TypedActor, Changeable, Configurable, Debuggable, DebugListener, Derivable, Instantiable, ModelErrorHandler, MoMLExportable, Moveable, Nameable

public class XYScope
extends XYPlotter

An X-Y plotter that plots with finite persistence. This plotter contains an instance of the Plot class from the Ptolemy plot package as a public member. Data at inputX and inputY are plotted on this instance. Both inputX and inputY are multiports that take a DoubleToken. When plotted, the first channel of inputX and the first channel of inputY are together considered the first signal, then the second channel of inputX and the second channel of inputY are considered the second signal, and so on. This requires that inputX and inputY have the same width.

This actor assumes that there is at least one token available on each channel when it fires. The horizontal axis is given by the value of the input from inputX and vertical axis is given by inputY.

If the persistence parameter is positive, then it specifies the number of points that are shown. It defaults to 100, so any point older than 100 samples is erased and forgotten.

Since:

Ptolemy II 1.0

Version:

$Id$

Author:

Edward A. Lee

Pt.AcceptedRating:

Yellow (neuendor)

Pt.ProposedRating:

Yellow (eal)

Nested Class Summary

Nested classes/interfaces inherited from class ptolemy.kernel.Entity

Entity.ContainedObjectsIterator

Field Summary

Fields

Modifier and Type	Field	Description
Parameter	persistence	The number of samples from each input channel displayed at any one time (an integer).

Fields inherited from class ptolemy.actor.lib.gui.XYPlotter

inputX, inputY

Fields inherited from class ptolemy.actor.lib.gui.Plotter

startingDataset

Fields inherited from class ptolemy.actor.lib.gui.PlotterBase

_base, _source, _text, automaticRescale, fillOnWrapup, legend, plot

Fields inherited from class ptolemy.actor.TypedAtomicActor

_typesValid

Fields inherited from class ptolemy.actor.AtomicActor

_actorFiringListeners, _initializables, _notifyingActorFiring, _stopRequested

Fields inherited from class ptolemy.kernel.util.NamedObj

_changeListeners, _changeLock, _changeRequests, _debugging, _debugListeners, _deferChangeRequests, _elementName, _isPersistent, _verbose, _workspace, ATTRIBUTES, CLASSNAME, COMPLETE, CONTENTS, DEEP, FULLNAME, LINKS

Fields inherited from interface ptolemy.actor.Executable

COMPLETED, NOT_READY, STOP_ITERATING

Constructor Summary

Constructors

Constructor	Description
XYScope(CompositeEntity container, java.lang.String name)	Construct an actor with the given container and name.

Method Summary

Modifier and Type	Method	Description
void	attributeChanged(Attribute attribute)	Notify this that an attribute has changed.
void	initialize()	Configure the plotter using the current parameter values.
boolean	postfire()	Call the base class postfire() method, then yield this thread so that the event thread gets a chance.

Methods inherited from class ptolemy.actor.lib.gui.PlotterBase

_exportMoMLContents, _getImplementation, _implementDeferredConfigurations, _isMoMLSuppressed, _newPlot, _propagateValue, cleanUp, clone, configure, getConfigureSource, getConfigureText, place, preinitialize, setContainer, setDisplayName, setFrame, setName, wrapup

Methods inherited from class ptolemy.actor.TypedAtomicActor

_containedTypeConstraints, _customTypeConstraints, _defaultTypeConstraints, _fireAt, _fireAt, attributeTypeChanged, clone, isBackwardTypeInferenceEnabled, newPort, typeConstraintList, typeConstraints

Methods inherited from class ptolemy.actor.AtomicActor

_actorFiring, _actorFiring, _declareDelayDependency, addActorFiringListener, addInitializable, connectionsChanged, createReceivers, declareDelayDependency, fire, getCausalityInterface, getDirector, getExecutiveDirector, getManager, inputPortList, isFireFunctional, isStrict, iterate, newReceiver, outputPortList, prefire, pruneDependencies, recordFiring, removeActorFiringListener, removeDependency, removeInitializable, stop, stopFire, terminate

Methods inherited from class ptolemy.kernel.ComponentEntity

_adjustDeferrals, _checkContainer, _getContainedObject, _propagateExistence, getContainer, instantiate, isAtomic, isOpaque, moveDown, moveToFirst, moveToIndex, moveToLast, moveUp, propagateExistence

Methods inherited from class ptolemy.kernel.Entity

_addPort, _description, _removePort, _validateSettables, connectedPortList, connectedPorts, containedObjectsIterator, getAttribute, getPort, getPorts, linkedRelationList, linkedRelations, portList, removeAllPorts, setClassDefinition, uniqueName

Methods inherited from class ptolemy.kernel.InstantiableNamedObj

_setParent, exportMoML, getChildren, getElementName, getParent, getPrototypeList, isClassDefinition, isWithinClassDefinition

Methods inherited from class ptolemy.kernel.util.NamedObj

_addAttribute, _adjustOverride, _attachText, _cloneFixAttributeFields, _containedDecorators, _copyChangeRequestList, _debug, _debug, _debug, _debug, _debug, _executeChangeRequests, _getIndentPrefix, _markContentsDerived, _notifyHierarchyListenersAfterChange, _notifyHierarchyListenersBeforeChange, _removeAttribute, _splitName, _stripNumericSuffix, addChangeListener, addDebugListener, addHierarchyListener, attributeDeleted, attributeList, attributeList, decorators, deepContains, depthInHierarchy, description, description, event, executeChangeRequests, exportMoML, exportMoML, exportMoML, exportMoML, exportMoMLPlain, getAttribute, getAttributes, getChangeListeners, getClassName, getDecoratorAttribute, getDecoratorAttributes, getDerivedLevel, getDerivedList, getDisplayName, getFullName, getModelErrorHandler, getName, getName, getSource, handleModelError, isDeferringChangeRequests, isOverridden, isPersistent, lazyContainedObjectsIterator, message, notifyOfNameChange, propagateValue, propagateValues, removeAttribute, removeChangeListener, removeDebugListener, removeHierarchyListener, requestChange, setClassName, setDeferringChangeRequests, setDerivedLevel, setModelErrorHandler, setPersistent, setSource, sortContainedObjects, toplevel, toString, validateSettables, workspace

Methods inherited from class java.lang.Object

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

Methods inherited from interface ptolemy.actor.Actor

createReceivers, getCausalityInterface, getDirector, getExecutiveDirector, getManager, inputPortList, newReceiver, outputPortList

Methods inherited from interface ptolemy.kernel.util.Derivable

getDerivedLevel, getDerivedList, propagateValue

Methods inherited from interface ptolemy.actor.Executable

fire, isFireFunctional, isStrict, iterate, prefire, stop, stopFire, terminate

Methods inherited from interface ptolemy.actor.Initializable

addInitializable, removeInitializable

Methods inherited from interface ptolemy.kernel.util.Nameable

description, getContainer, getDisplayName, getFullName, getName, getName

Field Detail

persistence

public Parameter persistence

The number of samples from each input channel displayed at any one time (an integer).

Constructor Detail

XYScope

public XYScope(CompositeEntity container,
               java.lang.String name)
        throws IllegalActionException,
               NameDuplicationException

Construct an actor with the given container and name.

Parameters:

container - The container.

name - The name of this actor.

Throws:

IllegalActionException - If the actor cannot be contained by the proposed container.

NameDuplicationException - If the container already has an actor with this name.

Method Detail

attributeChanged

public void attributeChanged(Attribute attribute)
                      throws IllegalActionException

Notify this that an attribute has changed. If either parameter is changed, then this actor updates the configuration of the visible plot.

Overrides:

attributeChanged in class Plotter

Parameters:

attribute - The attribute that changed.

Throws:

IllegalActionException - If the expression of the attribute cannot be parsed or cannot be evaluated.

initialize

public void initialize()
                throws IllegalActionException

Configure the plotter using the current parameter values.

Specified by:

initialize in interface Initializable

Overrides:

initialize in class Plotter

Throws:

IllegalActionException - If the parent class throws it.

postfire

public boolean postfire()
                 throws IllegalActionException

Call the base class postfire() method, then yield this thread so that the event thread gets a chance. This is necessary, because otherwise the swing thread may be starved and accumulate a large number of points waiting to be plotted.

Specified by:

postfire in interface Executable

Overrides:

postfire in class XYPlotter

Returns:

True if it is OK to continue.

Throws:

IllegalActionException - If there is no director, or if the base class throws it.