py_area

import numpy as np

class Pin:
    def __init__(self, id, n_ring, radius):
        self.id = id
        self.n_ring = n_ring
        self.radius = np.array(radius)

    def calc_total_area(self):
        return np.sum(np.pi * self.radius ** 2)

    def calc_total_volume(self):
        return np.sum((4 / 3) * np.pi * self.radius ** 3)

    def print(self):
        print(f"Pin ID: {self.id}, Rings: {self.n_ring}")
        print(f"Total Area: {self.calc_total_area()}")
        print(f"Total Volume: {self.calc_total_volume()}")

if __name__ == "__main__":
    rad = [1.0, 2.0]
    p = Pin(1, 2, rad)
    p.print()