通过Flask Framework将Dash Barchart插入HTML页面

Question

我正在尝试在我的网站中插入一个用Flask编写的条形图。这是我的app.py看起来像：

from flask import Flask, render_template
app = Flask(__name__)

@app.route("/")
def index():
    return render_template('index.html', title="Mainpage")

if __name__=='__main__':
    app.run(debug=True)

这是我的条形图的样子（chart.py）：

# -*- coding: utf-8 -*-
import dash
import dash_core_components as dcc
import dash_html_components as html

external_stylesheets = ['https://codepen.io/chriddyp/pen/bWLwgP.css']

app = dash.Dash(__name__, external_stylesheets=external_stylesheets)

app.layout = html.Div(children=[

    dcc.Graph(
        id='example-graph',
        figure={
            'data': [
                {'x': [1, 2, 3], 'y': [4, 1, 2], 'type': 'bar', 'name': 'SF'},
                {'x': [1, 2, 3], 'y': [2, 4, 5], 'type': 'bar', 'name': u'Montréal'},
            ],
        }
    )
])

if __name__ == '__main__':
    app.run_server(debug=True)

这是我的html看起来像（index.html）：

<!DOCTYPE html>
<html lang="en">
<title>W3.CSS Template</title>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://www.w3schools.com/w3css/4/w3.css">
<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Lato">
<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Montserrat">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
<style>
body,h1,h2,h3,h4,h5,h6 {font-family: "Lato", sans-serif}
.w3-bar,h1,button {font-family: "Montserrat", sans-serif}
.fa-anchor,.fa-coffee {font-size:200px}
</style>
<body>

<!-- Navbar -->
<div class="w3-top">
  <div class="w3-bar w3-red w3-card w3-left-align w3-large">
    <a class="w3-bar-item w3-button w3-hide-medium w3-hide-large w3-right w3-padding-large w3-hover-white w3-large w3-red" href="javascript:void(0);" onclick="myFunction()" title="Toggle Navigation Menu"><i class="fa fa-bars"></i></a>
    <a href="#" class="w3-bar-item w3-button w3-padding-large w3-white">Home</a>
    <a href="#" class="w3-bar-item w3-button w3-hide-small w3-padding-large w3-hover-white">Link 1</a>
    <a href="#" class="w3-bar-item w3-button w3-hide-small w3-padding-large w3-hover-white">Link 2</a>
    <a href="#" class="w3-bar-item w3-button w3-hide-small w3-padding-large w3-hover-white">Link 3</a>
    <a href="#" class="w3-bar-item w3-button w3-hide-small w3-padding-large w3-hover-white">Link 4</a>
  </div>

  <!-- Navbar on small screens -->
  <div id="navDemo" class="w3-bar-block w3-white w3-hide w3-hide-large w3-hide-medium w3-large">
    <a href="#" class="w3-bar-item w3-button w3-padding-large">Link 1</a>
    <a href="#" class="w3-bar-item w3-button w3-padding-large">Link 2</a>
    <a href="#" class="w3-bar-item w3-button w3-padding-large">Link 3</a>
    <a href="#" class="w3-bar-item w3-button w3-padding-large">Link 4</a>
  </div>
</div>

<!-- Header -->
<header class="w3-container w3-red w3-center" style="padding:128px 16px">
  <h1 class="w3-margin w3-jumbo">START PAGE</h1>
  <p class="w3-xlarge">Template by w3.css</p>
  <button class="w3-button w3-black w3-padding-large w3-large w3-margin-top">Get Started</button>
</header>

<!-- First Grid -->
<div class="w3-row-padding w3-padding-64 w3-container">
  <div class="w3-content">
    <div class="w3-twothird">
      <h1>Bar Chart</h1>

        <h2>Insert bar chart here</h2>

  </div>
</div>

</body>
</html>

我想要一个网站，我可以在一个页面上嵌入破折号或海底或剧情或可能的d3图表。使用短划线图，我希望建立一个看起来像这样的网站：

我该怎么做呢？

编辑1 05/04/19。这是我的文件结构：

Answer 1

import dash
import dash_core_components as dcc
import dash_html_components as html

from flask import Flask, render_template

server = Flask(__name__)

@server.route('/name')
def name():
    return render_template('index.html')

external_stylesheets = ['https://codepen.io/chriddyp/pen/bWLwgP.css']

layout = """
<!DOCTYPE html>
<html lang="en">
<title>{%title%}</title>
{%favicon%}
{%metas%}
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://www.w3schools.com/w3css/4/w3.css">
<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Lato">
<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Montserrat">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
{%css%}
<style>
body,h1,h2,h3,h4,h5,h6 {font-family: "Lato", sans-serif}
.w3-bar,h1,button {font-family: "Montserrat", sans-serif}
.fa-anchor,.fa-coffee {font-size:200px}
</style>
<body>

<!-- Navbar -->
<div class="w3-top">
  <div class="w3-bar w3-red w3-card w3-left-align w3-large">
    <a class="w3-bar-item w3-button w3-hide-medium w3-hide-large w3-right w3-padding-large w3-hover-white w3-large w3-red" href="javascript:void(0);" onclick="myFunction()" title="Toggle Navigation Menu"><i class="fa fa-bars"></i></a>
    <a href="#" class="w3-bar-item w3-button w3-padding-large w3-white">Home</a>
    <a href="#" class="w3-bar-item w3-button w3-hide-small w3-padding-large w3-hover-white">Link 1</a>
    <a href="#" class="w3-bar-item w3-button w3-hide-small w3-padding-large w3-hover-white">Link 2</a>
    <a href="#" class="w3-bar-item w3-button w3-hide-small w3-padding-large w3-hover-white">Link 3</a>
    <a href="#" class="w3-bar-item w3-button w3-hide-small w3-padding-large w3-hover-white">Link 4</a>
  </div>

  <!-- Navbar on small screens -->
  <div id="navDemo" class="w3-bar-block w3-white w3-hide w3-hide-large w3-hide-medium w3-large">
    <a href="#" class="w3-bar-item w3-button w3-padding-large">Link 1</a>
    <a href="#" class="w3-bar-item w3-button w3-padding-large">Link 2</a>
    <a href="#" class="w3-bar-item w3-button w3-padding-large">Link 3</a>
    <a href="#" class="w3-bar-item w3-button w3-padding-large">Link 4</a>
  </div>
</div>

<!-- Header -->
<header class="w3-container w3-red w3-center" style="padding:128px 16px">
  <h1 class="w3-margin w3-jumbo">START PAGE</h1>
  <p class="w3-xlarge">Template by w3.css</p>
  <button class="w3-button w3-black w3-padding-large w3-large w3-margin-top">Get Started</button>
</header>

<!-- First Grid -->
<div class="w3-row-padding w3-padding-64 w3-container">
  <div class="w3-content">
    <div class="w3-twothird">
      <h1>Bar Chart</h1>

        <h2>Insert bar chart here</h2>
        {%app_entry%}
  </div>
</div>
  {%config%}
  {%scripts%}
  {%renderer%}
</body>
</html>
"""

app = dash.Dash(__name__, external_stylesheets=external_stylesheets, server=server, index_string=layout)

app.layout = html.Div(children=[
    dcc.Graph(
        id='example-graph',
        figure={
            'data': [
                {'x': [1, 2, 3], 'y': [4, 1, 2], 'type': 'bar', 'name': 'SF'},
                {'x': [1, 2, 3], 'y': [2, 4, 5], 'type': 'bar', 'name': u'Montréal'},
            ],
            'layout': {
                'title': 'Dash Data Visualization'
            }
        }
    )
])

if __name__ == '__main__':
    app.run_server(debug=True)

Answer 2

这绝不是正确的做法。但这可能有助于您思考正确的方向或者只是想到一些想法？拿一粒盐。

我不确定这样做的最佳/正确方法是什么，但是，这是我能想到的两种方式。要么生成/导出图表的png，然后将其插入到html中。或者您可以动态生成图表的JavaScript，然后插入它。因此，您将为图表写出所有基本代码，然后只需添加条形图的值。

通过Flask Framework将Dash Barchart插入HTML页面

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通过Flask Framework将Dash Barchart插入HTML页面

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