我的问题如下:
我想创建一个界面,在这个界面中,你可以通过一个滑块来更改参数,并使绘图上的更改相应地显示出来。问题是,使用matplotlib中的Slider()函数,我无法选择幻灯片栏中想要的确切参数。(只是开始、结束和步长)。有没有办法给一个数组加上我想要的值?谢谢。下面是来自 matplotlib网页:
import numpy as np
import matplotlib.pyplot as plt
from matplotlib.widgets import Slider, Button, RadioButtons
fig, ax = plt.subplots()
plt.subplots_adjust(left=0.25, bottom=0.25)
t = np.arange(0.0, 1.0, 0.001)
a0 = 5
f0 = 3
s = a0*np.sin(2*np.pi*f0*t)
l, = plt.plot(t,s, lw=2, color='red')
plt.axis([0, 1, -10, 10])
axcolor = 'lightgoldenrodyellow'
axfreq = plt.axes([0.03, 0.25, 0.03, 0.65])
axamp = plt.axes([0.08, 0.25, 0.03, 0.65])
sfreq = Slider(axfreq, 'Freq', 0.1, 30.0,valinit=f0,valstep=delta_f)
samp = Slider(axamp, 'Amp', 0.1, 10.0, valinit=a0)
def update(val):
amp = samp.val
freq = sfreq.val
l.set_ydata(amp*np.sin(2*np.pi*freq*t))
fig.canvas.draw_idle()
sfreq.on_changed(update)
samp.on_changed(update)
resetax = plt.axes([0.8, 0.025, 0.1, 0.04])
button = Button(resetax, 'Reset', color=axcolor, hovercolor='0.975')
def reset(event):
sfreq.reset()
samp.reset()
button.on_clicked(reset)
rax = plt.axes([0.5, 0.025, 0.15, 0.15])
radio = RadioButtons(rax, ('red', 'blue', 'green'), active=0)
def colorfunc(label):
l.set_color(label)
fig.canvas.draw_idle()
radio.on_clicked(colorfunc)
plt.show()
类幻灯片的参数:
班级matplotlib.widgets.Slider(ax,label,valmin,valmax,valinit=0.5,valfmt='%1.2f',closedmin=True,closedmax=True,slidermin=None,slidermax=None,拖动=True,valstep=None,**kwargs)
如您所见,在这两个滑块中,只给出初始值、最终值和步长(在sfreq和samp中)。在
提前谢谢
目前没有回答
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