Module: YPetri::Core::Timed::Basic

Defined in:
lib/y_petri/core/timed/basic.rb

Overview

Basic Petri net execution method for timed and hybrid nets. Works also for timeless nets, but for those, Core::Timeless::Basic is slightly more efficient.

Instance Method Summary collapse

Instance Method Details

#delta(Δt) ⇒ Object Also known as: Δ

Computes Δ for the period of Δt. Its result is a sum of the contribution of timed transitions over the period Δt and the contribution of timeless transitions as if each fired once.



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# File 'lib/y_petri/core/timed/basic.rb', line 11

def delta Δt
  gradient * Δt + delta_timeless
end

#step!(Δt = simulation.step) ⇒ Object

Makes a single step by Δt. Computes system delta, increments marking vector by it. On top of that, fires all A transitions, increments the simulation time and alerts the sampler that the system has changed.



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# File 'lib/y_petri/core/timed/basic.rb', line 20

def step! Δt=simulation.step
  increment_marking_vector Δ( Δt )
  assignment_transitions_all_fire!
  simulation.increment_time! Δt
  alert! # alerts the sampler that the system has changed
end