This project is a library of different simulation methods.
The following simulators are currently available:
- Petri Net (extended, timed, functional, stochastic, discrete, capacities)
- Gillespie
A simple Petri net with two places connected via a transition can be setup as follows:
import {simulation, model} from 'ac-sim-core-js'; const p1 = new model.petrinet.DiscretePlace('p1'); p1.tokenStart = 1n; const p2 = new model.petrinet.DiscretePlace('p2'); const t1 = new model.petrinet.DiscreteTransition('t1'); const arc1 = new model.petrinet.Arc( model.petrinet.ArcType.Regular, { from: p1, to: t1 } ); const arc2 = new model.petrinet.Arc( model.petrinet.ArcType.Regular, { from: t1, to: p2 } ); const simulator = new simulation.petrinet.DiscreteSimulator( [t1, p1, p2], // All nodes (places, transitions) in the net [arc1, arc2] // All arcs in the net );The simulation is run step by step with an optional limiting end time.
// Run one step: simulator.step(); // Run one step unless it exceeds the time point 10: simulator.step(10);A simple chemical reaction network with dimer formation and dissociation reactions (
import {simulation, model} from 'ac-sim-core-js'; const a = new model.gillespie.Node('A', 10n); const b = new model.gillespie.Node('B', 10n); const ab = new model.gillespie.Node('AB', 0n); const formation = new model.gillespie.Reaction( 'A + B -> AB', [ {node: a, amount: 1n}, {node: b, amount: 1n}, ], [{node: ab, amount: 1n}] ); const dissociation = new model.gillespie.Reaction( 'AB -> A + B', [{node: ab, amount: 1n}], [ {node: a, amount: 1n}, {node: b, amount: 1n}, ] ); const simulator = new simulation.gillespie.GillespieSimulator( [a, b, ab], // All chemical species in the net [formation, dissociation] // All reactions in the net );The simulation is run step by step with an optional limiting end time.
// Run one step: simulator.step(); // Run one step unless it exceeds the time point 10: simulator.step(10);