來自時代問題的秒數

Question

我試圖在製作網格之後爲3D圖繪製y軸時間。然而，日期變得很有趣，它應該至少是2012年。我認爲時代的秒數讓事情變得糟糕。

CSV文件內容：

Depth (m) 15.08.2012 15:39:09 15.08.2012 16:09:10 15.08.2012 16:39:10 15.08.2012 16:43:36 15.08.2012 16:46:18 
0 53.218 52.804 52.865 51.202 51.59 
0.128 53.107 52.709 52.414 52.141 51.627 
1.143 52.205 51.88 51.664 51.766 50.598 
2.159 51.026 50.846 50.842 51.258 50.046 
3.174 50.061 50.055 50.457 50.19 49.909 
4.189 49.092 49.31 49.586 50.068 49.611 
5.205 48.611 49.08 49.313 49.81 49.912 
6.22 50.14 50.784 51.066 51.321 51.748 
7.236 51.22 51.899 52.472 52.459 53.621 
8.251 50.66 51.324 51.879 52.18 52.209 
9.263 51.017 51.651 52.342 53.097 52.854 
10.274 50.486 51.156 51.829 52.226 51.73 
11.285 48.656 49.256 49.774 50.328 49.903 
12.297 46.009 46.333 46.575 47.406 46.924 
13.308 43.793 43.773 43.752 43.845 44.047 
14.32 42.27 42.135 42.163 42.527 42.559 
15.331 41.622 41.512 41.735 41.815 41.735 
16.342 41.189 41.233 41.414 41.203 41.457 

需要注意的是;在csv文件中的數字之間。無法讓它出現在這裏。

from matplotlib import cm 
from matplotlib.mlab import griddata 
import matplotlib.pyplot as plt 
import numpy as np 
import datetime as dt 
import time 
from mpl_toolkits.mplot3d import Axes3D 
from matplotlib.dates import DateFormatter 

fname = "C:\Users\zana.pepaj\Desktop\Temperature.csv" 

depth_list = [] 
tempr_list = [] 
time_list = [] 

with open(fname) as fin: 
    for ix, line in enumerate(fin): 
     line = line.rstrip() 
     line_list = line.split(';') 
     if ix == 0: 
      time_list = line_list[1:] 
     else: 
      depth_list.append(float(line_list[0])) 
      tempr_list.append([float(t) for t in line_list[1:]]) 

timelist = [] 
timelist=[(time.mktime(time.strptime(x, "%d.%m.%Y %H:%M:%S"))) for x in time_list] 

timetoday = time.mktime(time.localtime()) 

x = [] 
y = [] 
z = [] 
for j in range(len(time_list)): 
    for i in range(len(depth_list)): 
     x.append(depth_list[i]) 
     y.append(np.divide(timelist[j], 1000)) 
     z.append(tempr_list[i][j]) 

# Twice as wide as it is tall. 
fig = plt.figure(figsize=plt.figaspect(0.5)) 

#---- First subplot 
ax = fig.add_subplot(1, 1, 1, projection='3d') 

xi = np.linspace(min(x), max(x), 10) 
yi = np.linspace(min(y), max(y), 10) 

X, Y = np.meshgrid(xi, yi) 
Z = griddata(x, y, z, xi, yi) 

ax.yaxis.set_major_formatter(DateFormatter('%H:%M:%S\n%m/%d/%y')) 

#surf = ax.plot_surface(X, Y, Z, rstride=6, cstride=6, cmap=cm.jet, linewidth=0) 
surf = ax.plot_surface(X, Y, Z, rstride=1, cstride=1, cmap=cm.gist_rainbow, linewidth=0, antialiased=False) 

fig.colorbar(surf) 
plt.show() 

這是結果我得到：

http://s1345.photobucket.com/user/zanapepa/media/Untitled_zps84ba310f.png.html

看到日期是完全錯誤的，他們都應該是2012年

Answer 1

我認爲你必須使用epoch2num。那就是：

而不是

y.append(np.divide(timelist[j], 1000)) 

嘗試

from matplotlib.dates import epoch2num 
y.append(epoch2num(timelist[j]))