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hospital.py
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## Graph visualization
import sys
import networkx as nx
from pyvis.network import Network
from calc import calc_loads,get_floor_weights
def create_hospital():
hospital = nx.DiGraph()
hospital.add_node(0,label='exit',x=175,y=500)
loads = calc_loads()
floor_weight_list = get_floor_weights( loads )
print(floor_weight_list)
avg = sum(loads)/len(loads)
hospital.add_node(0,label='Finalexit',x=200,y=500)
hospital.add_node(1,label="Ward1",x=50,y=50)
hospital.add_node(2,label="Floor3Exit1",x=150,y=100)
hospital.add_node(3,label="Floor3Exit2",x=350,y=100)
hospital.add_node(4,label="Ward2",x=450,y=50)
#floor2
hospital.add_node(5,label="Ward3",x=50,y=150)
hospital.add_node(6,label="Floor2 Exit1",x=150,y=200)
hospital.add_node(7,label="Floor2 Exit2",x=350,y=200)
hospital.add_node(8,label="Ward4",x=450,y=150)
#floor1
hospital.add_node(9,label="Ward5",x=50,y=250)
hospital.add_node(10,label="Floor1 Exit1",x=150,y=300)
hospital.add_node(11,label="Floor1 Exit2",x=350,y=300)
hospital.add_node(12,label="Ward6",x=450,y=250)
#floor0
hospital.add_node(13,label="ICU ward",x=50,y=350)
hospital.add_node(14,label="Ground exit1",x=150,y=400)
hospital.add_node(15,label="Ground Exit2",x=350,y=400)
hospital.add_node(16,label="Trauma ward",x=450,y=350)
hospital.add_edge(1,2,capacity=700)
hospital.add_edge(1,3,capacity=700)
hospital.add_edge(4,2,capacity=700)
hospital.add_edge(4,3,capacity=700)
# exit1
hospital.add_edge(2,7,capacity=1200)
hospital.add_edge(2,6,capacity=1200)
hospital.add_edge(3,7,capacity=1200)
hospital.add_edge(3,6,capacity=1200)
hospital.add_edge(5,6,capacity=800)
hospital.add_edge(5,7,capacity=800)
hospital.add_edge(8,6,capacity=800)
hospital.add_edge(8,7,capacity=800)
#exit2
hospital.add_edge(6,10,capacity=2800)
hospital.add_edge(6,11,capacity=2800)
hospital.add_edge(7,10,capacity=2800)
hospital.add_edge(7,11,capacity=2800)
hospital.add_edge(9,10,capacity=800)
hospital.add_edge(9,11,capacity=800)
hospital.add_edge(12,10,capacity=800)
hospital.add_edge(12,11,capacity=800)
#exit3
hospital.add_edge(10,14,capacity=4200)
hospital.add_edge(11,15,capacity=4200)
hospital.add_edge(10,15,capacity=4200)
hospital.add_edge(11,14,capacity=4200)
hospital.add_edge(13,14,capacity=1000)
hospital.add_edge(13,15,capacity=1000)
hospital.add_edge(16,15,capacity=1000)
hospital.add_edge(16,14,capacity=1000)
#finalexit
hospital.add_edge(14,0,capacity=10000)
hospital.add_edge(15,0,capacity=10000)
## super source vertex
hospital.add_edge(20,1,capacity=int(floor_weight_list[0][0]))
hospital.add_edge(20,4,capacity=int(floor_weight_list[0][1]))
hospital.add_edge(20,5,capacity=int(floor_weight_list[1][0]))
hospital.add_edge(20,8,capacity=int(floor_weight_list[1][1]))
hospital.add_edge(20,9,capacity=int(floor_weight_list[2][0]))
hospital.add_edge(20,12,capacity=int(floor_weight_list[2][1]))
hospital.add_edge(20,13,capacity=int(floor_weight_list[3][0]))
hospital.add_edge(20,16,capacity=int(floor_weight_list[3][1]))
def temp(x):
return int(x)
nt1 = Network('800px','800px')
nt1.from_nx(hospital,edge_weight_transf=temp)
nt1.toggle_drag_nodes(True)
nt1.toggle_physics(False)
nt1.show("hospital.html")
return hospital,loads,avg,temp
def calculate_output_flow(hospital,loads,avg,temp):
flow_value, flow_dict = nx.maximum_flow(hospital,20,0)
print("Flow value="+ str(flow_value)+"\n\n")
print("flow dict="+str(flow_dict)+"\n\n")
people = flow_value//avg
total = len(loads)
print("\n\n"+str(people)+ " people evacuated out of "+ str(total)+" people in hospital")
output = nx.DiGraph()
output.add_node(0,label='Finalexit',x=200,y=500)
output.add_node(1,label="Ward1",x=50,y=50)
output.add_node(2,label="Floor3Exit1",x=150,y=100)
output.add_node(3,label="Floor3Exit2",x=350,y=100)
output.add_node(4,label="Ward2",x=450,y=50)
#floor2
output.add_node(5,label="Ward3",x=50,y=150)
output.add_node(6,label="Floor2 Exit1",x=150,y=200)
output.add_node(7,label="Floor2 Exit2",x=350,y=200)
output.add_node(8,label="Ward4",x=450,y=150)
#floor1
output.add_node(9,label="Ward5",x=50,y=250)
output.add_node(10,label="Floor1 Exit1",x=150,y=300)
output.add_node(11,label="Floor1 Exit2",x=350,y=300)
output.add_node(12,label="Ward6",x=450,y=250)
#floor0
output.add_node(13,label="ICU ward",x=50,y=350)
output.add_node(14,label="Ground exit1",x=150,y=400)
output.add_node(15,label="Ground Exit2",x=350,y=400)
output.add_node(16,label="Trauma ward",x=450,y=350)
output.add_edge(1,2,weight=int(flow_dict[1][2]))
output.add_edge(1,3,weight=int(flow_dict[1][3]))
output.add_edge(4,2,weight=int(flow_dict[4][2]))
output.add_edge(4,3,weight=int(flow_dict[4][3]))
# exit1
output.add_edge(2,7,weight=int(flow_dict[2][7]))
output.add_edge(2,6,weight=int(flow_dict[2][6]))
output.add_edge(3,7,weight=int(flow_dict[3][7]))
output.add_edge(3,6,weight=int(flow_dict[3][6]))
output.add_edge(5,6,weight=int(flow_dict[5][6]))
output.add_edge(5,7,weight=int(flow_dict[5][7]))
output.add_edge(8,6,weight=int(flow_dict[8][6]))
output.add_edge(8,7,weight=int(flow_dict[8][7]))
#exit2
output.add_edge(6,10,weight=int(flow_dict[6][10]))
output.add_edge(6,11,weight=int(flow_dict[6][11]))
output.add_edge(7,10,weight=int(flow_dict[7][10]))
output.add_edge(7,11,weight=int(flow_dict[7][11]))
output.add_edge(9,10,weight=int(flow_dict[9][10]))
output.add_edge(9,11,weight=int(flow_dict[9][11]))
output.add_edge(12,10,weight=int(flow_dict[12][10]))
output.add_edge(12,11,weight=int(flow_dict[12][11]))
#exit3
output.add_edge(10,14,weight=int(flow_dict[10][14]))
output.add_edge(11,15,weight=int(flow_dict[11][15]))
output.add_edge(10,15,weight=int(flow_dict[10][15]))
output.add_edge(11,14,weight=int(flow_dict[11][14]))
output.add_edge(13,14,weight=int(flow_dict[13][14]))
output.add_edge(13,15,weight=int(flow_dict[13][15]))
output.add_edge(16,15,weight=int(flow_dict[16][15]))
output.add_edge(16,14,weight=int(flow_dict[16][14]))
#finalexit
output.add_edge(14,0,weight=int(flow_dict[14][0]))
output.add_edge(15,0,weight=int(flow_dict[15][0]))
# output.add_edge(20,1,weight=flow_dict[20][1])
# output.add_edge(20,4,weight=flow_dict[20][4])
# output.add_edge(20,5,weight=flow_dict[20][5])
# output.add_edge(20,8,weight=flow_dict[20][8])
# output.add_edge(20,9,weight=flow_dict[20][9])
# output.add_edge(20,12,weight=flow_dict[20][12])
# output.add_edge(20,13,weight=flow_dict[20][13])
# output.add_edge(20,16,weight=flow_dict[20][16])
nt = Network('800px','800px')
nt.from_nx(output,edge_weight_transf=temp)
nt.toggle_drag_nodes(True)
nt.toggle_physics(False)
nt.show("hospital.html")
if __name__=="__main__":
hospital,loads,avg,temp = create_hospital()
print("Open hospital.html to view initial state of hospital")
option = input("Press 'a' to view result after max flow calculation")
if (option=='a'):
calculate_output_flow(hospital,loads,avg,temp)
print("Reload/view hospital.html again to view result after network flow optimization.")