|
| 1 | +from vidigi.logging import EventLogger |
| 2 | +from vidigi.utils import EventPosition, create_event_position_df |
| 3 | +from vidigi.animation import animate_activity_log |
| 4 | +import simpy |
| 5 | +import numpy as np |
| 6 | + |
| 7 | +class Patient: |
| 8 | + def __init__(self, p_id): |
| 9 | + self.id = p_id |
| 10 | + |
| 11 | +class SimpleActivityModelThreeSequentialActivities: |
| 12 | + def __init__(self, master_seed=42): |
| 13 | + self.env = simpy.Environment() |
| 14 | + self.patient_counter = 0 |
| 15 | + self.patient_inter = 3 |
| 16 | + self.logger = EventLogger(env=self.env) |
| 17 | + |
| 18 | + # Seed setup using numpy's SeedSequence |
| 19 | + self.master_seed = master_seed |
| 20 | + self.seed_seq = np.random.SeedSequence(master_seed) |
| 21 | + self.rng = np.random.default_rng(self.seed_seq) |
| 22 | + |
| 23 | + def generate_arrivals(self): |
| 24 | + while True: |
| 25 | + self.patient_counter += 1 |
| 26 | + |
| 27 | + p = Patient(self.patient_counter) |
| 28 | + |
| 29 | + self.logger.log_arrival(entity_id=p.id) |
| 30 | + |
| 31 | + if self.rng.uniform(low=0.0, high=1.0) < 0.4: |
| 32 | + self.env.process(self.patient_journey_1(p)) |
| 33 | + else: |
| 34 | + self.env.process(self.patient_journey_2(p)) |
| 35 | + sampled_inter = self.rng.exponential(scale=self.patient_inter) |
| 36 | + yield self.env.timeout(sampled_inter) |
| 37 | + |
| 38 | + def patient_journey_1(self, patient): |
| 39 | + |
| 40 | + if self.rng.uniform(low=0.0, high=1.0) < 0.4: |
| 41 | + self.logger.log_queue(entity_id=patient.id, event="wait_here_receptionist") |
| 42 | + yield self.env.timeout(abs(self.rng.normal(loc=3, scale=1))) |
| 43 | + else: |
| 44 | + self.logger.log_queue(entity_id=patient.id, event="wait_here_self_register") |
| 45 | + yield self.env.timeout(abs(self.rng.normal(loc=2, scale=1))) |
| 46 | + |
| 47 | + # 50% of patients in this pathway have a blood test before their appointment |
| 48 | + if self.rng.uniform(low=0.0, high=1.0) < 0.5: |
| 49 | + self.logger.log_queue(entity_id=patient.id, event="wait_here_blood_test") |
| 50 | + yield self.env.timeout(abs(self.rng.normal(loc=14, scale=3))) |
| 51 | + |
| 52 | + self.logger.log_queue(entity_id=patient.id, event="wait_here_doctor_consult") |
| 53 | + |
| 54 | + yield self.env.timeout(abs(self.rng.normal(loc=8, scale=2))) |
| 55 | + |
| 56 | + self.logger.log_departure(entity_id=patient.id) |
| 57 | + |
| 58 | + def patient_journey_2(self, patient): |
| 59 | + if self.rng.uniform(low=0.0, high=1.0) < 0.7: |
| 60 | + self.logger.log_queue(entity_id=patient.id, event="wait_here_app") |
| 61 | + yield self.env.timeout(abs(self.rng.normal(loc=3, scale=1))) |
| 62 | + else: |
| 63 | + self.logger.log_queue(entity_id=patient.id, event="wait_here_self_register") |
| 64 | + yield self.env.timeout(abs(self.rng.normal(loc=3, scale=1))) |
| 65 | + |
| 66 | + # 20% of patients in this pathway have a blood test before their appointment |
| 67 | + if self.rng.uniform(low=0.0, high=1.0) < 0.2: |
| 68 | + self.logger.log_queue(entity_id=patient.id, event="wait_here_blood_test") |
| 69 | + yield self.env.timeout(abs(self.rng.normal(loc=14, scale=3))) |
| 70 | + # Another 60% have a health check with a nurse |
| 71 | + elif self.rng.uniform(low=0.0, high=1.0) < 0.8: |
| 72 | + self.logger.log_queue(entity_id=patient.id, event="wait_here_health_check") |
| 73 | + yield self.env.timeout(abs(self.rng.normal(loc=14, scale=3))) |
| 74 | + # And some proportion of those also then have a blood test |
| 75 | + if self.rng.uniform(low=0.0, high=1.0) < 0.7: |
| 76 | + self.logger.log_queue(entity_id=patient.id, event="wait_here_blood_test") |
| 77 | + yield self.env.timeout(abs(self.rng.normal(loc=14, scale=3))) |
| 78 | + # And the remaining 20% go straight to the doctor |
| 79 | + if self.rng.uniform(low=0.0, high=1.0) < 0.7: |
| 80 | + self.logger.log_queue(entity_id=patient.id, event="wait_here_doctor_consult") |
| 81 | + yield self.env.timeout(abs(self.rng.normal(loc=8, scale=2))) |
| 82 | + |
| 83 | + # some then return to the receptionist to book another appointment |
| 84 | + if self.rng.uniform(low=0.0, high=1.0) < 0.4: |
| 85 | + self.logger.log_queue(entity_id=patient.id, event="wait_here_receptionist") |
| 86 | + yield self.env.timeout(abs(self.rng.normal(loc=8, scale=2))) |
| 87 | + |
| 88 | + def run(self): |
| 89 | + self.env.process(self.generate_arrivals()) |
| 90 | + self.env.run(until=180) |
| 91 | + |
| 92 | + |
| 93 | +model = SimpleActivityModelThreeSequentialActivities() |
| 94 | +model.run() |
| 95 | +event_log = model.logger.to_dataframe() |
| 96 | +# event_log.to_csv("test_log.csv") |
| 97 | + |
| 98 | +animate_activity_log( |
| 99 | + event_log = event_log, |
| 100 | + event_position_df = create_event_position_df([ |
| 101 | + |
| 102 | + EventPosition(event="wait_here_receptionist", x=75 , y=25 , label="Speaking<br>with receptionist"), |
| 103 | + EventPosition(event="wait_here_self_register", x=75 , y=125 , label="Registering<br>via machine"), |
| 104 | + EventPosition(event="wait_here_app", x=75 , y=225 , label="Checked in<br>via app"), |
| 105 | + |
| 106 | + |
| 107 | + EventPosition(event="wait_here_blood_test", x=175 , y=125 , label="Having a<br>blood test"), |
| 108 | + EventPosition(event="wait_here_health_check", x=175 , y=225 , label="Having a<br>health check"), |
| 109 | + |
| 110 | + EventPosition(event="wait_here_doctor_consult", x=275 , y=225 , label="Seeing<br>a<br>doctor"), |
| 111 | + |
| 112 | + EventPosition(event="depart", x=400, y=125, label="Exit") |
| 113 | + ]), |
| 114 | + every_x_time_units=1, |
| 115 | + limit_duration=60, |
| 116 | + override_x_max=300, |
| 117 | + override_y_max=325, |
| 118 | + plotly_height=600, |
| 119 | + plotly_width=1100, |
| 120 | + display_stage_labels=True, |
| 121 | + # time_display_units="%M minutes", |
| 122 | + gap_between_entities=10, |
| 123 | + wrap_queues_at=5, |
| 124 | + entity_icon_size=20, |
| 125 | + text_size=15, |
| 126 | + simulation_time_unit="minutes", |
| 127 | + debug_write_intermediate_objects=True |
| 128 | +).update_layout( |
| 129 | + plot_bgcolor='white', |
| 130 | + ) |
0 commit comments