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from matplotlib.widgets import Slider
import numpy as np
import matplotlib.pyplot as plt
def f(t, A, T):
return A * np.cos(2*np.pi/T * t)
def graphslider():
A = 3
T = 1
t = np.linspace(0,1, 1000)
fig, ax = plt.subplots()
line = ax.plot(t, f(t, A, T), lw=2)
ax.grid()
fig.suptitle('Représentation d’une onde avec slider.')
plt.subplots_adjust(bottom=0.25)
axamp = plt.axes([0.25, 0.1, 0.65, 0.03])
amp_slider = Slider(ax = axamp,label="Amplitude",valmin=1,valmax=5,valinit=A,orientation="horizontal")
axfreq = fig.add_axes([0.25, 0.05, 0.65, 0.03])
freq_slider = Slider(ax = axfreq,label="Fréquence",valmin=1,valmax=7.6,valinit=T,orientation="horizontal")
def update(val):
line.set_ydata(f(t,amp_slider.val,freq_slider.val))
fig.canvas.draw_idle()
amp_slider.on_changed(update)
freq_slider.on_changed(update)
plt.show()
def graph():
t = np.linspace(0,10, 90)
s = 2 *np.cos(2*np.pi/3 *t)
fig = plt.figure(figsize=(16, 8), layout="constrained")
spec = fig.add_gridspec(2, 2)
ax0 = fig.add_subplot(spec[0, :])
ax0.plot(t,s)
ax0.set_title('Amplitudes et Périodes fixe.')
ax0.grid()
ax0.set_xlabel('Position')
ax0.set_ylabel('Amplitude')
ax10 = fig.add_subplot(spec[1, 0])
ax10 .plot(t,1 *np.cos(2*np.pi/3 *t), label='amplitude = 1')
ax10 .plot(t,2.2 *np.cos(2*np.pi/3 *t), label='amplitude = 2,2')
ax10 .plot(t,3.5 *np.cos(2*np.pi/3 *t), label='amplitude = 3,5')
ax10 .plot(t,5 *np.cos(2*np.pi/3 *t), label='amplitude = 5')
ax10.set_title('Amplitudes différentes.')
ax10.grid()
ax10.set_xlabel('Position')
ax10.set_ylabel('Amplitude')
ax10.legend()
ax11 = fig.add_subplot(spec[1, 1])
ax11.plot(t,2 *np.cos(2*np.pi/3 *t), label='périodes = 3')
ax11.plot(t,2 *np.cos(2*np.pi/5.2 *t), label='périodes = 5,2')
ax11.plot(t,2 *np.cos(2*np.pi/7.6 *t), label='périodes = 7,6')
ax11.grid()
ax11.set_title('Périodes différentes.')
ax11.set_xlabel('Position')
ax11.set_ylabel('Amplitude')
ax11.legend()
fig.suptitle('Représentation d’une onde.')
plt.show()
def afficher():
graph()
graphslider()
afficher() |
