"""Net Module"""
import math
from typing import List, Tuple
from models.path import Path
[docs]class Net:
"""Net class represents a wire that connects two or more pins"""
def __init__(self, net_id, net_name, num_of_pins, net_pins_coordinates):
self.net_id: int = net_id
self.net_name: str = net_name
self.num_of_pins: int = num_of_pins
self.net_pins_coordinates: List[Tuple[int, int]] = net_pins_coordinates
self.path: Path = None
self.hpwl: int = self.set_hpwl()
[docs] def set_hpwl(self) -> int:
"""Set the value of HPWL (Half-Perimeter Wirelength)
Returns:
int: HPWL (Half-Perimeter Wirelength)
"""
min_x = math.inf
min_y = math.inf
max_x = 0
max_y = 0
for coordinate in self.net_pins_coordinates:
min_x = min(coordinate[0], min_x)
min_y = min(coordinate[1], min_y)
max_x = max(coordinate[0], max_x)
max_y = max(coordinate[1], max_y)
return (max_x - min_x) + (max_y - min_y)