public class DifferentialSystem extends TypedCompositeActor
The differential system model implements a system whose behavior is defined by:
dx/dt = f(x, u, t) y = g(x, u, t) x(0) = x0where x is the state vector, u is the input vector, and y is the output vector, t is the time. To use this actor, proceed through the following steps:
This actor is a higher-order component. Upon preinitialization, the actor will create a subsystem using integrators and expressions. These are not persistent (they are not exported in the MoML file), and will instead by created each time the actor is preinitialized.
This actor is based on the ptolemy.domain.ct.lib.DifferentialSystem actor by Jie Liu.
Integrator| Red (cxh) |
| Red (liuj) |
CompositeEntity.ContainedObjectsIterator| Modifier and Type | Field and Description |
|---|---|
Parameter |
stateVariableNames
The names of the state variables, in an array of strings.
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Parameter |
t
The value of current time.
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_actorFiringListeners, _causalityInterface, _derivedPiggybacks, _initializables, _notifyingActorFiring, _piggybacks, _publishedPorts, _publisherRelations, _stopRequested, _subscribedPorts_levelCrossingLinks_changeListeners, _changeLock, _changeRequests, _debugging, _debugListeners, _deferChangeRequests, _elementName, _isPersistent, _verbose, _workspace, ATTRIBUTES, CLASSNAME, COMPLETE, CONTENTS, DEEP, FULLNAME, LINKSCOMPLETED, NOT_READY, STOP_ITERATING| Constructor and Description |
|---|
DifferentialSystem(CompositeEntity container,
java.lang.String name)
Construct the composite actor with a name and a container.
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DifferentialSystem(Workspace workspace)
Construct a DifferentialSystem in the specified
workspace with no container and an empty string as a name.
|
| Modifier and Type | Method and Description |
|---|---|
protected void |
_addPort(Port port)
Add a port to this actor.
|
void |
attributeChanged(Attribute attribute)
If the argument is any parameter other than stateVariableNames
t, or any parameter matching an input port,
then request reinitialization.
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void |
fire()
Override the base class to first set the value of the
parameter t to match current time, then to set
the local parameters that mirror input values,
and then to fire the contained actors.
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void |
preinitialize()
Create the model inside from the parameter values.
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_addEntity, _addRelation, _checkTypesFromTo, _destinationTypeConstraints, attributeTypeChanged, isBackwardTypeInferenceEnabled, newPort, newRelation, resolveTypes, typeConstraintList, typeConstraints_actorFiring, _actorFiring, _finishedAddEntity, _setDirector, _transferPortParameterInputs, addActorFiringListener, addInitializable, addPiggyback, clone, connectionsChanged, createReceivers, createSchedule, getCausalityInterface, getDirector, getExecutiveDirector, getManager, getPublishedPort, getPublishedPortChannel, getPublishedPorts, getSubscribedPortChannel, inferringWidths, inferWidths, initialize, inputPortList, isFireFunctional, isOpaque, isPublishedPort, isStrict, iterate, linkToPublishedPort, linkToPublishedPort, linkToPublishedPort, linkToPublishedPort, needsWidthInference, newInsideReceiver, newReceiver, notifyConnectivityChange, outputPortList, postfire, prefire, recordFiring, registerPublisherPort, registerPublisherPort, removeActorFiringListener, removeInitializable, removePiggyback, requestChange, setContainer, setDirector, setManager, stop, stopFire, terminate, unlinkToPublishedPort, unlinkToPublishedPort, unlinkToPublishedPort, unlinkToPublishedPort, unregisterPublisherPort, unregisterPublisherPort, wrapup_adjustDeferrals, _containedDecorators, _deepOpaqueEntityList, _description, _exportMoMLContents, _removeEntity, _removeRelation, _validateSettables, allAtomicEntityList, allowLevelCrossingConnect, classDefinitionList, connect, connect, containedObjectsIterator, deepCompositeEntityList, deepEntityList, deepGetEntities, deepNamedObjList, deepOpaqueEntityList, deepRelationSet, entityList, entityList, exportLinks, exportMoML, getAttribute, getEntities, getEntity, getPort, getRelation, getRelations, isAtomic, lazyAllAtomicEntityList, lazyAllCompositeEntityList, lazyAllCompositeTransparentAndOpaqueEntityList, lazyClassDefinitionList, lazyDeepEntityList, lazyEntityList, lazyRelationList, numberOfEntities, numberOfRelations, numEntities, numRelations, relationList, removeAllEntities, removeAllRelations, setClassDefinition, statistics, uniqueName_checkContainer, _getContainedObject, _propagateExistence, getContainer, instantiate, moveDown, moveToFirst, moveToIndex, moveToLast, moveUp, propagateExistence, setName_removePort, connectedPortList, connectedPorts, getPorts, linkedRelationList, linkedRelations, portList, removeAllPorts_setParent, getChildren, getElementName, getParent, getPrototypeList, isClassDefinition, isWithinClassDefinition_addAttribute, _adjustOverride, _attachText, _cloneFixAttributeFields, _copyChangeRequestList, _debug, _debug, _debug, _debug, _debug, _executeChangeRequests, _getIndentPrefix, _isMoMLSuppressed, _markContentsDerived, _notifyHierarchyListenersAfterChange, _notifyHierarchyListenersBeforeChange, _propagateValue, _removeAttribute, _splitName, _stripNumericSuffix, addChangeListener, addDebugListener, addHierarchyListener, attributeDeleted, attributeList, attributeList, clone, 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, setClassName, setDeferringChangeRequests, setDerivedLevel, setDisplayName, setModelErrorHandler, setPersistent, setSource, sortContainedObjects, toplevel, toString, validateSettables, workspaceequals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, waitcreateReceivers, getCausalityInterface, getDirector, getExecutiveDirector, getManager, inputPortList, newReceiver, outputPortListisFireFunctional, isStrict, iterate, postfire, prefire, stop, stopFire, terminateaddInitializable, initialize, removeInitializable, wrapupdescription, getContainer, getDisplayName, getFullName, getName, getName, setNamegetDerivedLevel, getDerivedList, propagateValuepublic Parameter stateVariableNames
public Parameter t
public DifferentialSystem(CompositeEntity container, java.lang.String name) throws NameDuplicationException, IllegalActionException
container - The container.name - The name.NameDuplicationException - If another entity already had
this name.IllegalActionException - If there was an internal problem.public DifferentialSystem(Workspace workspace) throws IllegalActionException, NameDuplicationException
workspace - The workspace that will list the actor.IllegalActionException - If the name has a period in it, or
the director is not compatible with the specified container.NameDuplicationException - If the container already contains
an entity with the specified name.public void attributeChanged(Attribute attribute) throws IllegalActionException
attributeChanged in class TypedCompositeActorattribute - The attribute that changed.IllegalActionException - If the numerator and the
denominator matrix is not a row vector.public void fire()
throws IllegalActionException
fire in interface Executablefire in class CompositeActorIllegalActionException - If there is no director, or if
the director's fire() method throws it, or if the actor is not
opaque.public void preinitialize()
throws IllegalActionException
preinitialize in interface Initializablepreinitialize in class CompositeActorIllegalActionException - If there is no director,
or if any contained actors throws it in its preinitialize() method.protected void _addPort(Port port) throws IllegalActionException, NameDuplicationException
_addPort in class TypedCompositeActorport - The TypedIOPort to add to this actor.IllegalActionException - If the port class is not
acceptable to this actor, or the port has no name.NameDuplicationException - If the port name collides with a
name already in the actor.