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82 lines
2.4 KiB
Python
82 lines
2.4 KiB
Python
#!/usr/bin/env python
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"""
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Test: Potential
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Draw the Kepler potential and the Hénon--Heils potential
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@ Author: Moussouni, Yaël (MSc student) & Bhat, Junaid Ramzan (MSc student)
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@ Institution: Université de Strasbourg, CNRS, Observatoire astronomique
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de Strasbourg, UMR 7550, F-67000 Strasbourg, France
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@ Date: 2025-01-01
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Licence:
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Order and Chaos in a 2D potential
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Copyright (C) 2025 Yaël Moussouni (yael.moussouni@etu.unistra.fr)
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Bhat, Junaid Ramzan (junaid-ramzan.bhat@etu.unistra.fr)
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test_potentials.py
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Copyright (C) 2025 Yaël Moussouni (yael.moussouni@etu.unistra.fr)
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Bhat, Junaid Ramzan (junaid-ramzan.bhat@etu.unistra.fr)
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see https://www.gnu.org/licenses/.
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"""
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import numpy as np
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import matplotlib.pyplot as plt
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import potentials as pot
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import initial_conditions as init
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if "YII_1" in plt.style.available: plt.style.use("YII_1")
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# Loading matplotlib style...
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W = init.mesh_grid(300)
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def kepler(W):
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"""Plots the Kepler potential"""
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X = W[0]
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Y = W[1]
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POT = pot.kepler_potential(W, position_only=True)
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fig, ax = plt.subplots(1)
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ax.set_title("Kepler potential")
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pcm = ax.pcolormesh(X, Y, POT)
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fig.colorbar(pcm, label="potential")
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ax.set_aspect("equal")
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ax.set_xlabel("$x$")
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ax.set_ylabel("$y$")
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fig.savefig("Figs/pot_kepler.png")
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return 0
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def hh(W):
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"""Plots the Hénon--Heils potential"""
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X = W[0]
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Y = W[1]
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POT = pot.hh_potential(W, position_only=True)
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fig, ax = plt.subplots(1)
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ax.set_title("Hénon--Heils potential")
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pcm = ax.pcolormesh(X, Y, POT)
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fig.colorbar(pcm, label="potential")
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ax.set_aspect("equal")
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ax.set_xlabel("$x$")
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ax.set_ylabel("$y$")
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fig.savefig("Figs/pot_hh.png")
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return 0
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if __name__ == "__main__":
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kepler(W)
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hh(W)
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plt.show(block=True)
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