draw 50 fish in 3D using Matplotlib

draw_many_fish.py

import numpy as np
import matplotlib.pyplot as plt
from matplotlib.path import Path
from matplotlib.patches import PathPatch
import mpl_toolkits.mplot3d.art3d as art3d


positions = np.random.random((3, 50)) * 10

fig = plt.figure()
ax = fig.add_subplot(111, projection='3d')


fish_vertices = np.array([
    (0, 0), (1, 2), (5, 2),
    (7, 0), (8, -1), (7.8, 0), (8, 1), (7, 0),
    (5, -1), (1, -1.5), (0, 0)
]) / 5
codes = [1, 4, 4, 4, 2, 2, 2, 2, 4, 4, 4]


for p in positions.T:
    v = fish_vertices + p[np.newaxis, :2]
    fish = PathPatch(
        Path(v, codes=codes),
        facecolor='tomato',
        edgecolor='k'
    )
    ax.add_patch(fish)
    art3d.pathpatch_2d_to_3d(
        fish, z=p[-1], zdir="y"
    )

ax.set_xlim(-2, 12)
ax.set_ylim(-2, 12)
ax.set_zlim(-2, 12)
plt.show()

Here is what I got with the code

Major breakthrough of my PhD