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| # -*- coding: utf-8 -*-
import time
import json
import requests
from datetime import datetime
import numpy as np
import matplotlib
import matplotlib.figure
from matplotlib.font_manager import FontProperties
from matplotlib.backends.backend_agg import FigureCanvasAgg
from matplotlib.patches import Polygon
from matplotlib.collections import PatchCollection
from mpl_toolkits.basemap import Basemap
import matplotlib.pyplot as plt
import matplotlib.dates as mdates
plt.rcParams['font.sans-serif'] = ['FangSong'] # 设置默认字体
plt.rcParams['axes.unicode_minus'] = False # 解决保存图像时'-'显示为方块的问题
def catch_daily():
"""抓取每日确诊和死亡数据"""
url = 'https://view.inews.qq.com/g2/getOnsInfo?name=wuwei_ww_cn_day_counts&callback=&_=%d'%int(time.time()*1000)
data = json.loads(requests.get(url=url).json()['data'])
data.sort(key=lambda x:x['date'])
date_list = list() # 日期
confirm_list = list() # 确诊
suspect_list = list() # 疑似
dead_list = list() # 死亡
heal_list = list() # 治愈
for item in data:
month, day = item['date'].split('.')
date_list.append(datetime.strptime('2020-%s-%s'%(month, day), '%Y-%m-%d'))
confirm_list.append(int(item['confirm']))
suspect_list.append(int(item['suspect']))
dead_list.append(int(item['dead']))
heal_list.append(int(item['heal']))
return date_list, confirm_list, suspect_list, dead_list, heal_list
def catch_distribution():
"""抓取行政区域确诊分布数据"""
data = {'西藏':0}
url = 'https://view.inews.qq.com/g2/getOnsInfo?name=wuwei_ww_area_counts&callback=&_=%d'%int(time.time()*1000)
for item in json.loads(requests.get(url=url).json()['data']):
if item['area'] not in data:
data.update({item['area']:0})
data[item['area']] += int(item['confirm'])
return data
def plot_daily():
"""绘制每日确诊和死亡数据"""
date_list, confirm_list, suspect_list, dead_list, heal_list = catch_daily() # 获取数据
plt.figure('2019-nCoV 疫情统计图表', facecolor='#f4f4f4', figsize=(10, 8))
plt.title('2019-nCoV 疫情曲线', fontsize=20)
plt.plot(date_list, confirm_list, label='确诊')
plt.plot(date_list, suspect_list, label='疑似')
plt.plot(date_list, dead_list, label='死亡')
plt.plot(date_list, heal_list, label='治愈')
plt.gca().xaxis.set_major_formatter(mdates.DateFormatter('%m-%d')) # 格式化时间轴标注
plt.gcf().autofmt_xdate() # 优化标注（自动倾斜）
plt.grid(linestyle=':') # 显示网格
plt.legend(loc='best') # 显示图例
plt.rcParams['savefig.dpi'] = 300 #图片像素
plt.rcParams['figure.dpi'] = 300 #分辨率
plt.savefig('2019-nCoV 疫情曲线.png') # 保存为文件
#plt.show()
def plot_distribution():
"""绘制行政区域确诊分布数据"""
data = catch_distribution()
font = FontProperties(fname='res/SourceHanSerifCN-Regular.otf', size=14) # 自定义字体
lat_min = 0
lat_max = 60
lon_min = 70
lon_max = 140
handles = [
matplotlib.patches.Patch(color='#ffaa85', alpha=1, linewidth=0),
matplotlib.patches.Patch(color='#ff7b69', alpha=1, linewidth=0),
matplotlib.patches.Patch(color='#bf2121', alpha=1, linewidth=0),
matplotlib.patches.Patch(color='#7f1818', alpha=1, linewidth=0),
]
labels = [ '1-9人', '10-99人', '100-999人', '>1000人']
fig = matplotlib.figure.Figure()
fig.set_size_inches(10, 8) # 设置绘图板尺寸
axes = fig.add_axes((0.1, 0.12, 0.8, 0.8)) # rect = l,b,w,h
m = Basemap(llcrnrlon=lon_min, urcrnrlon=lon_max, llcrnrlat=lat_min, urcrnrlat=lat_max, resolution='l', ax=axes)
m.readshapefile('res/china-shapefiles-master/china', 'province', drawbounds=True)
m.readshapefile('res/china-shapefiles-master/china_nine_dotted_line', 'section', drawbounds=True)
m.drawcoastlines(color='black') # 洲际线
m.drawcountries(color='black') # 国界线
m.drawparallels(np.arange(lat_min,lat_max,10), labels=[1,0,0,0]) #画经度线
m.drawmeridians(np.arange(lon_min,lon_max,10), labels=[0,0,0,1]) #画纬度线
for info, shape in zip(m.province_info, m.province):
pname = info['OWNER'].strip('\x00')
fcname = info['FCNAME'].strip('\x00')
if pname != fcname: # 不绘制海岛
continue
for key in data.keys():
if key in pname:
if data[key] == 0:
color = '#f0f0f0'
elif data[key] < 10:
color = '#ffaa85'
elif data[key] <100:
color = '#ff7b69'
elif data[key] < 1000:
color = '#bf2121'
else:
color = '#7f1818'
break
poly = Polygon(shape, facecolor=color, edgecolor=color)
axes.add_patch(poly)
axes.legend(handles, labels, bbox_to_anchor=(0.5, -0.11), loc='lower center', ncol=4, prop=font)
axes.set_title("2019-nCoV 疫情地图", fontproperties=font)
FigureCanvasAgg(fig)
plt.rcParams['savefig.dpi'] = 300 #图片像素
plt.rcParams['figure.dpi'] = 300 #分辨率
fig.savefig('2019-nCoV 疫情地图.png')
if __name__ == '__main__':
plot_daily()
plot_distribution()
|
◎ 疫情曲线
◎ 圆柱投影疫情地图
◎ 兰勃特投影疫情地图
◎ 正射投影疫情地图