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| import reacton | |
| import solara | |
| import numpy as np | |
| import matplotlib.pyplot as plt | |
| from matplotlib.figure import Figure | |
| import matplotlib.animation as animation | |
| zoom = solara.reactive(2) | |
| center = solara.reactive((20, 0)) | |
| class PauseAnimation: | |
| def __init__(self): | |
| self.fig = Figure() | |
| ax = self.fig.subplots() | |
| ax.set_title('Click to pause/resume the animation') | |
| x = np.linspace(-0.1, 0.1, 1000) | |
| # Start with a normal distribution | |
| self.n0 = (1.0 / ((4 * np.pi * 2e-4 * 0.1) ** 0.5) | |
| * np.exp(-x ** 2 / (4 * 2e-4 * 0.1))) | |
| self.p, = ax.plot(x, self.n0) | |
| self.animation = animation.FuncAnimation( | |
| self.fig, self.update, frames=200, interval=50, blit=True) | |
| self.paused = False | |
| self.fig.canvas.mpl_connect('button_press_event', self.toggle_pause) | |
| def toggle_pause(self, *args, **kwargs): | |
| if self.paused: | |
| self.animation.resume() | |
| else: | |
| self.animation.pause() | |
| self.paused = not self.paused | |
| def update(self, i): | |
| self.n0 += i / 100 % 5 | |
| self.p.set_ydata(self.n0 % 20) | |
| return (self.p,) | |
| def get_fig(self): | |
| return self.fig | |
| def Page(): | |
| # do this instead of plt.figure() | |
| #fig = Figure() | |
| #ax = fig.subplots() | |
| #ax.plot([1, 2, 3], [1, 4, 9]) | |
| pa = PauseAnimation() | |
| return solara.FigureMatplotlib(pa) | |