Module: YPetri::Simulation::Transitions::Type_Ts

Includes:
Type_T, Type_s
Defined in:
lib/y_petri/simulation/transitions/Ts.rb

Instance Method Summary collapse

Methods included from Type_T

#delta, #Δ

Instance Method Details

#gradient ⇒ Object

Gradient contribution for free places.



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# File 'lib/y_petri/simulation/transitions/Ts.rb', line 18

def gradient
  gradient_closure.call
end

#gradient_closures ⇒ Object

Member gradient closures.



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# File 'lib/y_petri/simulation/transitions/Ts.rb', line 12

def gradient_closures
  map &:gradient_closure
end

#to_gradient_closure ⇒ Object Also known as: gradient_closure

Constructs a gradient closure that outputs a gradient vector corresponding to free places. The vector is the gradient contribution of the transitions in this collection.



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# File 'lib/y_petri/simulation/transitions/Ts.rb', line 33

def to_gradient_closure
  fp = free_places
  closures = gradient_closures
  sMV = simulation.MarkingVector
  stu = simulation.time_unit

  code_sections = map.with_index do |t, i|
    "a = closures[ #{i} ].call\n" +
      t.increment_by_codomain_code( vector: "g", source: "a" )
  end
  body = code_sections.join( "\n" )
  λ = <<-LAMBDA
    -> do
    g = sMV.zero( fp ) / stu
    #{body}
    return g
    end
  LAMBDA
  eval λ
end

#∇ ⇒ Object Also known as: gradient_all

Gradient contribution to all places.



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# File 'lib/y_petri/simulation/transitions/Ts.rb', line 24

def ∇
  f2a * gradient
end