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Python模拟脉冲星伪信号频率实例代码

时间:2020-12-31 00:14     来源/作者:Nicolas P. Rougier

脉冲星假信号频率的相对路径论证。

首先看一下演示结果:

Python模拟脉冲星伪信号频率实例代码

实例代码:

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import numpy as np
import matplotlib.pyplot as plt
import matplotlib.animation as animation
 
# Fixing random state for reproducibility
np.random.seed(19680801)
 
 
# Create new Figure with black background
fig = plt.figure(figsize=(8, 8), facecolor='black')
 
# Add a subplot with no frame
ax = plt.subplot(111, frameon=False)
 
# Generate random data
data = np.random.uniform(0, 1, (64, 75))
X = np.linspace(-1, 1, data.shape[-1])
G = 1.5 * np.exp(-4 * X ** 2)
 
# Generate line plots
lines = []
for i in range(len(data)):
  # Small reduction of the X extents to get a cheap perspective effect
  xscale = 1 - i / 200.
  # Same for linewidth (thicker strokes on bottom)
  lw = 1.5 - i / 100.0
  line, = ax.plot(xscale * X, i + G * data[i], color="w", lw=lw)
  lines.append(line)
 
# Set y limit (or first line is cropped because of thickness)
ax.set_ylim(-1, 70)
 
# No ticks
ax.set_xticks([])
ax.set_yticks([])
 
# 2 part titles to get different font weights
ax.text(0.5, 1.0, "MATPLOTLIB ", transform=ax.transAxes,
    ha="right", va="bottom", color="w",
    family="sans-serif", fontweight="light", fontsize=16)
ax.text(0.5, 1.0, "UNCHAINED", transform=ax.transAxes,
    ha="left", va="bottom", color="w",
    family="sans-serif", fontweight="bold", fontsize=16)
 
 
def update(*args):
  # Shift all data to the right
  data[:, 1:] = data[:, :-1]
 
  # Fill-in new values
  data[:, 0] = np.random.uniform(0, 1, len(data))
 
  # Update data
  for i in range(len(data)):
    lines[i].set_ydata(i + G * data[i])
 
  # Return modified artists
  return lines
 
# Construct the animation, using the update function as the animation
# director.
anim = animation.FuncAnimation(fig, update, interval=10)
plt.show()

脚本运行时间:(0分0.065秒)

总结

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原文链接:https://matplotlib.org/index.html

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