Visualization not drawing lines properly

[moritz-gross]

Hi, I use quads 1.1.0 and want to visualize a dummy dataset with quads.visualize(tree), but the separating lines are not drawn correctly.

Setup: MacOS 15.4.1, Python 3.12 and matplotlib 3.10.3

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Code:

import quads
import numpy as np

tree = quads.QuadTree(center=(0, 0), width=20, height=20, capacity=2)

for i in range(20):
    x = np.random.uniform(-10, 10)
    y = np.random.uniform(-10, 10)
    tree.insert((x, y))
    
quads.visualize(tree)