#解决显实中文问题
plt.rcParams['font.sans-serif']=['SimHei']
plt.rcParams['axes.unicode_minus']=False
使用matplotlib绘制一个动态心形
import matplotlib.pyplot as plt
import numpy as np
import math
from matplotlib.widgets import Slider, Button, RadioButtons
#解决显实中文问题
plt.rcParams['font.sans-serif']=['SimHei']
plt.rcParams['axes.unicode_minus']=False
fig,ax1=plt.subplots()
plt.subplots_adjust(left=0.25, bottom=0.25)
x = np.linspace(-10, 10,10000)
y = np.sqrt(x ** 2)
l, = ax1.plot(x, y, color='red', linestyle="--", linewidth=5)
plt.axis([-2.5, 2.5, -2.5, 2.5])
axcolor = 'lightgoldenrodyellow'
axfreq = plt.axes([0.25, 0.1, 0.65, 0.03], facecolor=axcolor)
b=Slider(axfreq,"b",0,10,valinit=0)
#为滑块加上一个绑定事件
def update(val):
a = b.val
# s = a0 * np.sin(2 * np.pi * f0 * t)
l.set_ydata(np.sqrt(x ** 2) + np.sqrt(3.3 - x ** 2) * np.sin(a * np.pi * x) * 0.9)
fig.canvas.draw_idle()
b.on_changed(update)
#设定重置按钮的位置
# plt.axes((left, bottom, width, height), facecolor='w')
resetax = plt.axes([0.8, 0.925, 0.1, 0.04])
button=Button(resetax,"重置",color=axcolor, hovercolor='0.975')
def reset(event):
b.reset()
button.on_clicked(reset)
# ,u"线条颜色",fontproperties='SimHei'
#颜色变化
rax = plt.axes([0.025, 0.5, 0.15, 0.15], facecolor=axcolor)
rax.set_title("设置线条颜色")
radio=RadioButtons(rax,("red", 'pink', 'black'), activecolor='red')
def colorfunc(label):
l.set_color(label)
fig.canvas.draw_idle()
radio.on_clicked(colorfunc)
plt.show()