Class Event

Defined in Program listing for file kernel/src/simulationTools/Event.hpp

class Event

Abstract class that represents generic time events.

This base class simply records the time at which the event will take place. A pure virtual function named process will be invoked to execute the event. The time is represented with a mpz_t, from gmp library. See http://gmplib.org.

Derived classes:

  • TimeDiscretisationEvent: events that corresponds to user-defined time-discretisation points

  • NonSmoothEvent: specific events, detected during simulation, when constraints are violated (thanks to roots-finding algorithm)

  • SensorEvent: event dedicated to data capture through user-defined sensors.

Existing types of events: 0 -> undef 1 -> TimeDiscretisation 2 -> NonSmooth 3 -> Sensor 4 -> Observer 5 -> Actuator

Subclassed by NonSmoothEvent, TimeDiscretisationEvent, TimeDiscretisationEventNoSaveInMemory

Public Functions

Event(double time, int newType = 0, bool reschedule = false)

copy constructor ; private => no copy nor pass-by-value.

assignment operator private => no assign allowed constructor with time value and type as input

Parameters

  • time – the starting type (a double)

  • newType – the Event type (an int)

  • reschedule – set this to true if the event has to be rescheduled

virtual ~Event()

destructor

inline double getTick() const

get tick value

Returns

a double

inline const mpz_t *getTimeOfEvent() const

get the time of the present event (mpz_t format)

Returns

a mpz_t

inline double getDoubleTimeOfEvent() const

get the time of the present event (double format)

Returns

a double

inline void setTime(double time)

set the time of the present event (double format)

Parameters

time – the new time

inline int getType() const

get a type of the present event

Returns

an std::string

inline void setType(int newType)

set a new type for the present Event

Parameters

newType – the new Event type

inline void setK(unsigned int newK)

Set the current step k.

Parameters

newK – the new value of _k

void setTimeDiscretisation(SP::TimeDiscretisation td)

Set the TimeDiscretisation.

Parameters

td – a TimeDiscretisation for this Event

inline SP::TimeDiscretisation getTimeDiscretisation() const

Get the TimeDiscretisation.

Returns

the TimeDiscretisation used in this Event

void display() const

display Event data

virtual void process(Simulation &sim) = 0

virtual function which actions depends on event type

Parameters

sim – the simulation that owns this Event (through the EventsManager)

virtual void update(unsigned int k = 0)

virtual function which actions depends on event type.

The generic implementation present in this object is to increment the TimeDiscretisation and to chamge the time of the current Event

Parameters

k – meaning depends on the type of event. See derived class.

Public Static Functions

static void setTick(double newTick)

set tick value

Parameters

newTick – the new tick value