我想在y轴上的矩形内设置颜色的动画,颜色填充应该像峰值计栏的行为一样上下移动。这段代码有我无法解决的错误。请帮助我解决此问题。
import matplotlib.pyplot as plt
import matplotlib.animation as animation
import random
import numpy
class AnimRect(object):
'''Animate a rectangle'''
def __init__(self):
self.fig = plt.figure(figsize = (5,5))
# create the axes
self.ax = plt.axes(xlim=(0,100), ylim=(0,100), aspect='equal')
# create rectangle
self.rect = plt.Rectangle((0,0), 5, 50,
fill=True, color='gold', ec='blue')
self.ax.add_patch(self.rect)
self.y=[]
for i in range(100):
x = random.randint(0, 30)
self.y.append(x)
self.y = numpy.array(self.y)
# print(self.y,len(self.y))
self.call_animation()
plt.show()
# animation function
def animate(self, i):
self.rect = self.ax.fill_between(0, self.y[i],0, color = 'red')
return self.rect,
def call_animation(self):
# call the animator function
self.anim = animation.FuncAnimation(self.fig, self.animate, frames=len(self.y), interval=0.1, blit=True, repeat=False)
def main():
rect = AnimRect()
main()
它在控制台中给出了这样的错误
idx, = np.nonzero(mask[:-1] != mask[1:]) IndexError: too many indices for array
在animate函数中,您应该用以下代码替换代码行:
self.rect = self.ax.fill_between(x = (0, 5), y1 = 0, y2 = self.y[i], color = 'red')
我将文档链接到fill_between
方法:
x: array (length N) The x coordinates of the nodes defining the curves. y1array (length N) or scalar y1: array (length N) or scalar The y coordinates of the nodes defining the first curve. y2array (length N) or scalar, optional, default: 0 y2: array (length N) or scalar, optional, default: 0 The y coordinates of the nodes defining the second curve.
在你的代码的问题是,您所指定x
的int
,而应该是一个数组。
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我来说两句