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python画图嵌入html

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11/29
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# -*- coding=utf-8 -*-

import matplotlib

import matplotlib.pyplot as plt

from io import BytesIO

import base64

import matplotlib.patches as mpatches

import time

def render_picture(xlist, ylist, debugflag=False):

    """样式"""

    plt.rcParams['font.family']=['Microsoft YaHei']

    if not debugflag:

        matplotlib.use('Agg')  #绘图开关

    patch = mpatches.Patch(color='blue', label='IPhoneX')

    plt.legend(handles=[patch])

    now = time.strftime("%Y-%m-%d %H:%M:%S", time.localtime())

    plt.title('%s 时间统计 机器编号#16'%now)

    #保证x与y能够对齐

    minlen = min(len(xlist), len(ylist))

    plt.tick_params(axis='x', rotation=30)

    plt.plot(xlist[:minlen], ylist[:minlen], 'b-^')

    plt.ylabel('单位/s')

    """数值显示"""

    for x,y in list(zip(xlist[:minlen], ylist[:minlen])):

        plt.text(x, y+5,  y, ha='center', va='baseline')

    """转换为html"""

    sio = BytesIO()

    plt.savefig(sio, format='png')

    data = base64.encodebytes(sio.getvalue()).decode()

    html = '''

       <html>

           <body>

               <img src="data:image/png;base64,{}" />

           </body>

        <html>

    '''.format(data)

    if debugflag:

        plt.show()

    plt.close()

    return html

if "__main__" == __name__:

    """数据"""

    xlist = ['Fiber', 'Bootp', 'Carr', 'STA',

             'CFGFinish', 'mcs', 'soc', 'RfConfig',

             'pa', ]

    ylist = [277, 282, 314, 318,

             324, 357, 416, 456,

             496]

    print(render_picture(xlist,ylist,True))

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