看过刘慈欣的《三体》后，对宇宙有种无比的向往，晚上仰视群星，白天俯瞰地球。
早上8:50的地球
代码：
#安装pip3.6 install Pillow
#安装pip3.6 install Requests
#安装pip3.6 install python-dateutil
#安装pip3.6 install pypiwin32 可能需要重启电脑
import sys
import time
import json
import requests
from PIL import Image
from io import BytesIO
from datetime import datetime
from dateutil import tz
import win32api, win32con, win32gui
conf ={
'last_refresh_url': 'http://himawari8-dl.nict.go.jp/himawari8/img/D531106/latest.json', # 最新图片
'img_url_pattern': 'http://himawari8-dl.nict.go.jp/himawari8/img/D531106/%id/550/%s_%i_%i.png', # scale, time, row, col
'scale': 1, # scale 设置结果图片的大小， 图片的宽和高都为 scale×550 。 scale 可以是 1, 2, 4, 8, 16, 20
}
def get_last_time():
r = requests.get(conf['last_refresh_url'])
resp = json.loads(r.text)
last_refresh_time = datetime.strptime(resp['date'], '%Y-%m-%d %H:%M:%S')
return last_refresh_time
# 转换时间
def utf2local(utc):
from_zone = tz.tzutc()
to_zone = tz.tzlocal()
utc = utc.replace(tzinfo=from_zone)
return utc.astimezone(to_zone)
def download(args):
scale = args['scale']
png = Image.new('RGB', (550*scale, 550*scale))
for row in range(scale):
for col in range(scale):
#print ('下载中 %i %i ...' %(row*scale + col + 1, scale*scale))
strtime = args['time'].strftime("%Y/%m/%d/%H%M%S")
url = conf['img_url_pattern'] % (args['scale'], strtime, row, col)
r = requests.get(url)
tile = Image.open(BytesIO(r.content))
png.paste(tile, (550 * row, 550 * col, 550 * (row + 1), 550 * (col + 1)))
if 'fout' in args:
fpath = args['fout']
else:
fpath = "%s.png" % utf2local(args['time']).strftime("%Y/-%m/-%d/ %H.%M.%S").replace('/', '')
print ('下载完成, 保存图片为 %s' % fpath)
png.save(fpath, "PNG")
set_wallpaper(fpath)
def get_last_image(fout=None, scale=1):
# print ('output[%s] scale[%i]' %(fout, scale))
last_refresh_time = get_last_time()
args = {'time': last_refresh_time}
args['scale'] = scale
if fout is not None:
args['fout'] = fout
download(args)
# 以需要的时间间隔执行某个命令
def re_exe(inc):
count=0
while True:
count += 1
print ('下载第'+str(count)+'张...')
if len(sys.argv) == 1:
get_last_image()
elif len(sys.argv) == 2:
get_last_image(fout=sys.argv[1])
elif len(sys.argv) == 3:
get_last_image(fout=sys.argv[1], scale=int(sys.argv[2]))
time.sleep(inc)
#把下载的地球图片 设置桌面壁纸-----------------------------------------------------------------------------
def set_wallpaper(fpath):
print ('把'+fpath+'设置为桌面壁纸 \n ')
# 打开指定注册表路径img_path
reg_key = win32api.RegOpenKeyEx(win32con.HKEY_CURRENT_USER, "Control Panel\\Desktop", 0, win32con.KEY_SET_VALUE)
# 最后的参数:2拉伸,0居中,6适应,10填充,0平铺
win32api.RegSetValueEx(reg_key, "WallpaperStyle", 0, win32con.REG_SZ, "0")
# 最后的参数:1表示平铺,拉伸居中等都是0
win32api.RegSetValueEx(reg_key, "TileWallpaper", 0, win32con.REG_SZ, "0")
# 刷新桌面
win32gui.SystemParametersInfo(win32con.SPI_SETDESKWALLPAPER, "C:\\Users\\panx\\Desktop\\实时地球图片壁纸\\"+fpath, win32con.SPIF_SENDWININICHANGE)
re_exe(600)#10分钟执行一次
喜欢的自行优化代码。
——Javen
2017.11.3