我正在模拟的问题是一个简单的钟摆。虽然我在使用 PyGame 之前已经完成了它,但我现在决定使用 matplotlib 的动画工具。它正在工作,但没有达到预期的效果。实时模拟它似乎有效。我调整了帧的间隔和数量,但 fps 太低了。如何在实时播放的同时提高 fps。我将不胜感激。无论如何,这是我的代码:
import numpy as np
import matplotlib.pyplot as plt
from matplotlib.animation import FuncAnimation
g = 9.80665
L = 2
mu = 0.1
t = 100
theta_0 = np.pi/3
d_theta_0 = 0
def get_d2_theta(theta,d_theta):
return -mu*d_theta-(g/L)*np.sin(theta)
def theta(t):
theta = theta_0
d_theta = d_theta_0
delta_t = 1./60
for time in np.arange(0,t,delta_t):
d2_theta = get_d2_theta(theta,d_theta)
theta += d_theta*delta_t
d_theta += d2_theta*delta_t
return theta
x_data = [0,0]
y_data = [0,0]
fig, ax = plt.subplots()
ax.set_xlim(-2, 2)
ax.set_ylim(-2.5,1)
line, = ax.plot(0, 0)
def animation_frame(i):
x = L*np.sin(theta(i))
y = -L*np.cos(theta(i))
x_data[1] = x
y_data[1] = y
line.set_xdata(x_data)
line.set_ydata(y_data)
return line,
animation = FuncAnimation(fig, func=animation_frame, frames=np.arange(0, 60, (1./60)),interval = 10)
plt.show()