使用opencv从python绘制m层六边形网格

我已经在python中从networkx为m层六边形晶格创建了一个代码，我想在白色背景上使用opencv，使用函数line和circle为蓝色边（厚度1）和红色顶点（半径为2的磁盘）重复同样的操作

import networkx as nx
import matplotlib.pyplot as plt


def node_dist(x,y, cx, cy):
    return abs(cx-x) + abs(cy-y)


def remove_unwanted_nodes(G, m):
    cx, cy = m-0.5, 2*m -(m%2) 
    
    unwanted = []
    for n in G.nodes:    
        x,y = n
        if node_dist(x,y, cx, cy) > 2*m:
            unwanted.append(n)

    for n in unwanted:
        G.remove_node(n)
        
    return G


m = 4
G = nx.hexagonal_lattice_graph(2*m-1,2*m-1, periodic=False, 
                               with_positions=True, 
                               create_using=None)
pos = nx.get_node_attributes(G, 'pos')
G = remove_unwanted_nodes(G, m)


plt.figure(figsize=(8,8)) 
nx.draw(G, pos=pos, with_labels=True)
plt.show()