每 2 秒动画一次，Python

Question

我正在编写一个图表，在数字 0、10、20（形成数组）等上画一条线，直到数组的最大值。这行得通，但线条同时弹出，但我希望它们彼此相继弹出 1 秒，从 0 开始，一秒后 10，一秒后 20 等

我做了一些研究，我知道我需要用 matplotlib 的 FuncAnimation 来做。以及需要弹出的功能。但我无法让它工作。

我真的很想得到你的帮助！

这是我的一些代码

import numpy as np
import matplotlib.pyplot as plt
import matplotlib.colors as colors
import gc
from matplotlib.animation import FuncAnimation

#reading my files
#putting data in array called array

#start plotting
array = array - np.nanmin(array)

    fig, ax = plt.subplots()
    fig.set_size_inches((fileObject.numberOfColumnsInArray + 1) / 2 + 1, (fileObject.numberOfRowsInArray + 1) / 2)
    
    X_Major_ticks = np.arange(1, fileObject.numberOfColumnsInArray + 1)
    X_Minor_ticks = np.arange(1.5, fileObject.numberOfColumnsInArray)
    Y_Major_ticks = np.arange(1, fileObject.numberOfRowsInArray + 1)
    Y_Minor_ticks = np.arange(1.5, fileObject.numberOfRowsInArray)
    ax.set_xticks(X_Major_ticks)
    ax.set_xticks(X_Minor_ticks, minor=True)
    ax.set_yticks(Y_Major_ticks)
    ax.set_yticks(Y_Minor_ticks, minor=True)

    ax.grid(which='minor', alpha=1, color='black', linewidth=1)
    ax.grid(which='major', alpha=0, color='black', linewidth=0.6)
    
    ax.set_xlim(0.5, fileObject.numberOfColumnsInArray + .5)
    ax.set_ylim(0.5, fileObject.numberOfRowsInArray + .5)
    
    pos = plt.imshow(array, extent=[.5, fileObject.numberOfColumnsInArray + .5, fileObject.numberOfRowsInArray + .5, .5], cmap=reverse_colourmap(new_cmap), alpha=1)
    plt.clim(0,60)
    plt.grid(which='both', linestyle='--')    

#        for i in range(fileObject.numberOfColumnsInArray):
#            for j in range(fileObject.numberOfRowsInArray):
#                if ~np.isnan(array[j, i]):
#                    ax.text(i+1, j+1, int(array[j, i]), ha='center', va='center')

    for i in range(fileObject.numberOfColumnsInArray-1):
        for j in range(fileObject.numberOfRowsInArray):
            if abs(array[j, i] - array[j, i+1]) >= blockCutOff:
                ax.plot([i+1.5,i+1.5], [j+.5,j+1.5], linewidth=4.5,linestyle=':',color='#FF0000') 
                       
    for i in range(fileObject.numberOfColumnsInArray):
        for j in range(fileObject.numberOfRowsInArray-1):
            if abs(array[j, i] - array[j+1, i]) >= blockCutOff:
                ax.plot([i+.5,i+1.5], [j+1.5,j+1.5], linewidth=4.5, linestyle=':',color='#FF0000')
                     
 ##this part makes the lines on 0 10 20 etc. i want to put tose liens apart every 1 or 2 sec.!!!
 # i tried to start a function here but without results.
 #def animate(a):
    for i in range(fileObject.numberOfColumnsInArray):
        for j in range(fileObject.numberOfRowsInArray-1):
            while array[j, i] in range(int(np.nanmin(array)),int(np.nanmax(array)), Wavelinetime):
                ax.plot([i+.5,i+1.5], [j+1.5,j+1.5], linewidth=3, linestyle='-',color='#000000')
                break
    
    #with this i want to animate and call on the function called animate
    #ani = FuncAnimation(fig, animate, interval=3000)     
    ax.set_title(deflectionTableFile.rsplit ('\')[-1].rsplit ('_')[0] + ': ' + deflectionTableFile.rsplit ('\')[-1].rsplit ('_')[5] + ' wave ' + str(iWaveLabel))                  
    plt.gca().invert_yaxis()    
    plt.gca().set_aspect('equal', adjustable='box')
    
    cbar_ax = fig.add_axes([.85, 0.15, 0.05, 0.7])
    cbar = fig.colorbar(pos, cax=cbar_ax, extend='max', ticks=range(0,61,5))
    cbar.minorticks_on()
    cbar.ax.set_title('ms')

Answer 1

这个问题最基本的答案是使用 Python 的时间库的 sleep() function。

for i in range(fileObject.numberOfColumnsInArray):
    for j in range(fileObject.numberOfRowsInArray-1):
        while array[j, i] in range(int(np.nanmin(array)),int(np.nanmax(array)), Wavelinetime):
            ax.plot([i+.5,i+1.5], [j+1.5,j+1.5], linewidth=3, linestyle='-',color='#000000')
            # do nothing for x number of seconds e.g. 1
            time.sleep(1)

Answer 2

我用 plt.pause 而不是睡眠，而且有效！

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