A goal is term in the cost functional to be minimized, or a set of endpoint constraints that must lie within provided bounds.
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| MocoGoal () |
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| MocoGoal (std::string name) |
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| MocoGoal (std::string name, double weight) |
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void | setEnabled (bool enabled) |
| Set whether this goal is used in the problem. More...
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bool | getEnabled () const |
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void | setWeight (double weight) |
| In cost mode, the goal is multiplied by this weight. More...
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double | getWeight () const |
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void | setMode (std::string mode) |
| Set the mode property to either 'cost' or 'endpoint_constraint'. More...
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std::string | getModeAsString () const |
| This returns the default mode of the goal, unless the user overrode the default using setMode(). More...
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Mode | getMode () const |
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bool | getModeIsCost () const |
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bool | getModeIsEndpointConstraint () const |
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Mode | getDefaultMode () const |
| Types of goals have a class-level default for whether they are enforced as a cost or endpoint constraint. More...
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bool | getSupportsEndpointConstraint () const |
| Can this goal be used in endpoint constraint mode? More...
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const MocoConstraintInfo & | getConstraintInfo () const |
| Get bounds for the constraints that are enforced when using this goal in endpoint constraint mode. More...
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MocoConstraintInfo & | updConstraintInfo () |
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int | getNumOutputs () const |
| Get the length of the return value of calcGoal(). More...
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int | getNumIntegrals () const |
| Get the number of integrals required by this cost. More...
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SimTK::Stage | getStageDependency () const |
| Obtain the stage that this goal depends on. More...
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SimTK::Real | calcIntegrand (const IntegrandInput &input) const |
| Calculate the integrand that should be integrated and passed to calcCost(). More...
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void | calcGoal (const GoalInput &input, SimTK::Vector &goal) const |
| In cost mode, the returned cost includes the weight, and the elements of the returned vector should be summed by the caller to obtain the total cost. More...
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void | initializeOnModel (const Model &model) const |
| Perform error checks on user input for this goal, and cache quantities needed when computing the goal value. More...
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void | printDescription () const |
| Print the name type and mode of this goal. More...
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virtual | ~Object () |
| Virtual destructor for cleanup. More...
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bool | isEqualTo (const Object &aObject) const |
| Equality operator wrapper for use from languages not supporting operator overloading. More...
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Object & | operator= (const Object &aObject) |
| Copy assignment copies he base class fields, including the properties. More...
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virtual bool | operator== (const Object &aObject) const |
| Determine if two objects are equal. More...
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virtual bool | operator< (const Object &aObject) const |
| Provide an ordering for objects so they can be put in sorted containers. More...
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void | setName (const std::string &name) |
| Set the name of the Object. More...
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const std::string & | getName () const |
| Get the name of this Object. More...
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void | setDescription (const std::string &description) |
| Set description, a one-liner summary. More...
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const std::string & | getDescription () const |
| Get description, a one-liner summary. More...
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const std::string & | getAuthors () const |
| Get Authors of this Object. More...
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void | setAuthors (const std::string &authors) |
| Set Authors of this object. More...
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const std::string & | getReferences () const |
| Get references or publications to cite if using this object. More...
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void | setReferences (const std::string &references) |
| Set references or publications to cite if using this object. More...
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int | getNumProperties () const |
| Determine how many properties are stored with this Object. More...
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const AbstractProperty & | getPropertyByIndex (int propertyIndex) const |
| Get a const reference to a property by its index number, returned as an AbstractProperty. More...
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AbstractProperty & | updPropertyByIndex (int propertyIndex) |
| Get a writable reference to a property by its index number, returned as an AbstractProperty. More...
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bool | hasProperty (const std::string &name) const |
| Return true if this Object has a property of any type with the given name, which must not be empty. More...
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const AbstractProperty & | getPropertyByName (const std::string &name) const |
| Get a const reference to a property by its name, returned as an AbstractProperty. More...
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AbstractProperty & | updPropertyByName (const std::string &name) |
| Get a writable reference to a property by its name, returned as an AbstractProperty. More...
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template<class T > |
bool | hasProperty () const |
| Return true if this Object contains an unnamed, one-object property that contains objects of the given template type T. More...
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template<class T > |
const Property< T > & | getProperty (const PropertyIndex &index) const |
| Get property of known type Property<T> as a const reference; the property must be present and have the right type. More...
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template<class T > |
Property< T > & | updProperty (const PropertyIndex &index) |
| Get property of known type Property<T> as a writable reference; the property must be present and have the right type. More...
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bool | isObjectUpToDateWithProperties () const |
| Returns true if no property's value has changed since the last time setObjectIsUpToDateWithProperties() was called. More...
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void | readObjectFromXMLNodeOrFile (SimTK::Xml::Element &objectElement, int versionNumber) |
| We're given an XML element from which we are to populate this Object. More...
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virtual void | updateFromXMLNode (SimTK::Xml::Element &objectElement, int versionNumber) |
| Use this method to deserialize an object from a SimTK::Xml::Element. More...
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void | updateXMLNode (SimTK::Xml::Element &parent, const AbstractProperty *prop=nullptr) const |
| Serialize this object into the XML node that represents it. More...
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bool | getInlined () const |
| Inlined means an in-memory Object that is not associated with an XMLDocument. More...
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void | setInlined (bool aInlined, const std::string &aFileName="") |
| Mark this as inlined or not and optionally provide a file name to associate with the new XMLDocument for the non-inline case. More...
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std::string | getDocumentFileName () const |
| If there is a document associated with this object then return the file name maintained by the document. More...
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int | getDocumentFileVersion () const |
| If there is a document associated with this object then return its version number. More...
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void | setAllPropertiesUseDefault (bool aUseDefault) |
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bool | print (const std::string &fileName) const |
| Write this Object into an XML file of the given name; conventionally the suffix to use is ".osim". More...
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std::string | dump () const |
| dump the XML representation of this Object into an std::string and return it. More...
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virtual bool | isA (const char *type) const |
| The default implementation returns true only if the supplied string is "Object"; each Object-derived class overrides this to match its own class name. More...
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const std::string & | toString () const |
| Wrapper to be used on Java side to display objects in tree; this returns just the object's name. More...
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PropertySet & | getPropertySet () |
| OBSOLETE: Get a reference to the PropertySet maintained by the Object. More...
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const PropertySet & | getPropertySet () const |
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static MocoGoal * | safeDownCast (OpenSim::Object *obj) |
| For use in MATLAB and Python to access the concrete class. More...
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static void | registerType (const Object &defaultObject) |
| Register an instance of a class; if the class is already registered it will be replaced. More...
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static void | renameType (const std::string &oldTypeName, const std::string &newTypeName) |
| Support versioning by associating the current Object type with an old name. More...
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static const Object * | getDefaultInstanceOfType (const std::string &concreteClassName) |
| Return a pointer to the default instance of the registered (concrete) Object whose class name is given, or NULL if the type is not registered. More...
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template<class T > |
static bool | isObjectTypeDerivedFrom (const std::string &concreteClassName) |
| Return true if the given concrete object type represents a subclass of the template object type T, and thus could be referenced with a T*. More...
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static Object * | newInstanceOfType (const std::string &concreteClassName) |
| Create a new instance of the concrete Object type whose class name is given as concreteClassName. More...
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static void | getRegisteredTypenames (Array< std::string > &typeNames) |
| Retrieve all the typenames registered so far. More...
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template<class T > |
static void | getRegisteredObjectsOfGivenType (ArrayPtrs< T > &rArray) |
| Return an array of pointers to the default instances of all registered (concrete) Object types that derive from a given Object-derived type that does not have to be concrete. More...
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static bool | PrintPropertyInfo (std::ostream &os, const std::string &classNameDotPropertyName, bool printFlagInfo=true) |
| Dump formatted property information to a given output stream, useful for creating a "help" facility for registered objects. More...
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static bool | PrintPropertyInfo (std::ostream &os, const std::string &className, const std::string &propertyName, bool printFlagInfo=true) |
| Same as the other signature but the class name and property name are provided as two separate strings. More...
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static Object * | makeObjectFromFile (const std::string &fileName) |
| Create an OpenSim object whose type is based on the tag at the root node of the XML file passed in. More...
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static const std::string & | getClassName () |
| Return the name of this class as a string; i.e., "Object". More...
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static void | setSerializeAllDefaults (bool shouldSerializeDefaults) |
| Static function to control whether all registered objects and their properties are written to the defaults section of output files rather than only those values for which the default was explicitly overwritten when read in from an input file or set programmatically. More...
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static bool | getSerializeAllDefaults () |
| Report the value of the "serialize all defaults" flag. More...
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static bool | isKindOf (const char *type) |
| Returns true if the passed-in string is "Object"; each Object-derived class defines a method of this name for its own class name. More...
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static void | setDebugLevel (int newLevel) |
| Set the amount of logging output. More...
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static int | getDebugLevel () |
| Get the current setting of debug level. More...
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static Object * | SafeCopy (const Object *aObject) |
| Use the clone() method to duplicate the given object unless the pointer is null in which case null is returned. More...
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static void | RegisterType (const Object &defaultObject) |
| OBSOLETE alternate name for registerType(). More...
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static void | RenameType (const std::string &oldName, const std::string &newName) |
| OBSOLETE alternate name for renameType(). More...
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A goal is term in the cost functional to be minimized, or a set of endpoint constraints that must lie within provided bounds.
Goals depend on the phase's initial and final states and controls, and optionally on the integral of a quantity over the phase. Not all goals support endpoint constraint mode; see getSupportsEndpointConstraint(). If a goal does support endpoint constraint mode, then the default mode is available via getMode(). Use endpoint constraint mode if you require the goal to be met strictly and do not want to allow a trade-off between this goal and other goals. The calculation of the goal may differ between cost and endpoint constraint modes; cost mode may require that outputs are squared, for example.
Stage dependency
Some goals require less of IntegrandInput and GoalInput than others. To ensure goals are computed efficiently, goals can specify a stage dependency, which tells solvers what to do when preparing IntegrandInput and GoalInput. Here are the expectations for each SimTK::Stage:
- SimTK::Stage::Topology: the time field of IntegrandInput and initial_time and final_time fields of GoalInput are available.
- SimTK::Stage::Model: controls fields of IntegrandInput and GoalInput are available.
- SimTK::Stage::Instance: MocoParameters are applied to the model.
- SimTK::Stage::Time: state variables (SimTK::State::getY(), etc.) are available, and SimTK::Stage::getTime() is updated.
- SimTK::Stage::Position: state, initial_state, and final_state can be used to compute position-dependent quantities.
- SimTK::Stage::Velocity: state, initial_state, and final_state can be used to compute velocity-dependent quantities.
- SimTK::Stage::Dynamics: state, initial_state, and final_state can be used to compute force-dependent quantities.
- SimTK::Stage::Acceleration: state, initial_state, and final_state can be used to compute acceleration-dependent quantities, such as body accelerations and joint reactions.
- For developers
- Every time the problem is solved, a copy of this goal is used. An individual instance of a goal is only ever used in a single problem. Therefore, there is no need to clear cache variables that you create in initializeImpl(). Also, information stored in this goal does not persist across multiple solves.