Python调用echarts5实现数据可视化-01

发布时间:2021-12-04 付费文章:2.0元

内含基础视图模板、单图、两图同行的bootstrap布局源代码

本期实现:

1.使用bootstrap,并构建基础视图模板;

2.调用视图模板,使用python进行渲染;

3.使用bootstrap实现两图一行布局。

Talk is cheap...

代码01-单一图表

import os
import jinja2
from jinja2 import Template
import webbrowser

# 加载基础模板
path = os.getcwd().replace("\\", "/")
base_temp_path = '/templates/base_flask_tmp.html'
base_temp_fullpath = path+base_temp_path
env = jinja2.Environment(loader=jinja2.FileSystemLoader(path))
base_temp = env.get_template(base_temp_path)

# 图像数据组


# 构造all_div
all_div='''
         <div class="col-md-6 container-fluid">
           <div id="main" style="height:400px;"></div>
        </div>

        '''

# 构造all_js
all_js='''
        <script type="text/javascript">
        var chartDom = document.getElementById('main');
        var myChart = echarts.init(chartDom);
        window.onresize = function() {  
           myChart.resize();  
        };
        var option;
        
        option = {
            xAxis: {
                type: 'category',
                data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun']
            },
            yAxis: {
                type: 'value'
            },
            series: [{
                data: [150, 230, 224, 218, 135, 147, 260],
                type: 'line'
            }]
        };
        
       myChart.setOption(option);
        </script>
        '''
# https://wudan.blog.csdn.net/article/details/81278929


# jinja2 渲染模板
temp_out = base_temp.render(all_div=all_div,all_js=all_js)


# 保存
temp_out_name = '/templates/ex_005_line01.html'
with open(path+temp_out_name, 'w', encoding='utf-8') as f:
    f.writelines(temp_out)
    f.close()

# 系统浏览器打开html文件
webbrowser.open(path+temp_out_name)

 

代码02-一行两图

import os
import jinja2
from jinja2 import Template
import webbrowser

# 加载基础模板
path = os.getcwd().replace("\\", "/")
base_temp_path = '/templates/base_flask_tmp.html'
base_temp_fullpath = path+base_temp_path
env = jinja2.Environment(loader=jinja2.FileSystemLoader(path))
base_temp = env.get_template(base_temp_path)

# 图像数据组


# 构造all_div
all_div='''
          <div class="row">
            <div class="col-md-6" style = "width:50%;float:left;overflow:hidden;">
                <div id="main1" style="height:400px;"></div>
            </div>
            <div class="col-md-6" style = "width:50%;float:left;overflow:hidden;">
               <div id="main2" style="height:400px;"></div>
            </div>
          </div>
        '''

# 构造all_js
all_js='''
        <script type="text/javascript">
            var chartDom = document.getElementById('main1');
            var myChart = echarts.init(chartDom);
            window.onresize = function() {  
               myChart.resize();  
            };
            var option;
            
            option = {
                xAxis: {
                    type: 'category',
                    data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun']
                },
                yAxis: {
                    type: 'value'
                },
                series: [{
                    data: [150, 230, 224, 218, 135, 147, 260],
                    type: 'line'
                }]
            };
            
           option && myChart.setOption(option);
        </script>
        
        <script type="text/javascript">
            var chartDom = document.getElementById('main2');
            var myChart = echarts.init(chartDom);
            var option;
            
            option = {
                xAxis: {
                    type: 'category',
                    data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun']
                },
                yAxis: {
                    type: 'value'
                },
                series: [{
                    data: [820, 932, 901, 934, 1290, 1330, 1320],
                    type: 'line',
                    smooth: true
                }]
            };
            
            option && myChart.setOption(option);
        </script>
        
        '''
# https://wudan.blog.csdn.net/article/details/81278929


# jinja2 渲染模板
temp_out = base_temp.render(all_div=all_div,all_js=all_js)


# 保存
temp_out_name = '/templates/ex_005_line02.html'
with open(path+temp_out_name, 'w', encoding='utf-8') as f:
    f.writelines(temp_out)
    f.close()

# 系统浏览器打开html文件
webbrowser.open(path+temp_out_name)

 

 

结语

本主已经打包了base_flask_tmp.html以及bootstrap、echarts先关css\js文件,对于有基础的道友,从上面代码可以自行构造相关文件;对于小白用户,拿来及运行,可以小支持一下: