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我似乎無法通過RGB定義更改Matplotlib散點圖的顏色。我錯了嗎?更改matplotlib動畫中的RGB顏色
下面是一個代碼(在堆棧溢出已經給出)與浮法索引顏色搭配:
import matplotlib.pyplot as plt
import numpy as np
import matplotlib.animation as animation
def main():
numframes = 100
numpoints = 10
color_data = np.random.random((numframes, numpoints))
x, y, c = np.random.random((3, numpoints))
fig = plt.figure()
scat = plt.scatter(x, y, c=c, s=100)
ani = animation.FuncAnimation(fig, update_plot, frames=range(numframes),
fargs=(color_data, scat))
plt.show()
def update_plot(i, data, scat):
scat.set_array(data[i])
return scat,
main()
但如果color_data
通過RGB顏色定義,我得到一個錯誤:
ValueError: Collections can only map rank 1 arrays
相關代碼如下(在此代碼中,我只是每次更改一個樣本的顏色):
import matplotlib.pyplot as plt
import numpy as np
import matplotlib.animation as animation
def main():
numframes = 100
numpoints = 10
rgb_color_data = np.random.random((numpoints, 3))
x, y = np.random.random((2, numpoints))
fig = plt.figure()
scat = plt.scatter(x, y, c=rgb_color_data, s=100) #this work well at this level
ani = animation.FuncAnimation(fig, update_plot2, frames=range(numframes),
fargs=(rgb_color_data, scat))
plt.show()
def update_plot2(i,data,scat):
data[ i%10 ] = np.random.random((3))
scat.set_array(data) # this fails
return scat,
main()
有沒有辦法使用set_array
與RGB顏色數組?