我期待得到Flask返回的简单线散景图,但是当我浏览到localhost时我得到的是:5002 / simpleline是这样的:
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我有两个文件. Python文件:
from bokeh.plotting import figure, show, output_file
from bokeh.embed import components
from flask import Flask, render_template
app=Flask(__name__)
@app.route('/simpleline/')
def simpleLine():
fig=figure(title="Sensor data")
fig.line([1,2,3,4],[2,4,6,8])
div=components(fig)
return render_template('simpleline.html',div=div)
show(fig)
if __name__ == "__main__":
app.run(debug=True,port=5002)
和HTML模板:
<!doctype html>
<html>
<head>
<title>Figure examples</title>
<link rel="stylesheet" href="http://cdn.pydata.org/bokeh-0.7.1.min.css" type="text/css" />
<script type="text/javascript"src="http://cdn.pydata.org/bokeh-0.7.1.min.js"></script>
</head>
<body>
<div class='bokeh'>
{{ div|safe }}
</div>
</body>
</html>
我相信我错过了一些必不可少的东西.
在mn的回答之后,发现components()产生了两个元素,一个Javascript字符串和一个html div.所以,我更新了我的脚本如下,但这次网页显示为空白.
from bokeh.plotting import figure, show, output_file
from bokeh.embed import components
from flask import Flask, render_template
app=Flask(__name__)
@app.route('/simpleline/')
def simpleLine():
fig=figure(title="Sensor data")
fig.line([1,2,3,4],[2,4,6,8])
global script
global div
script,div=components(fig)
return render_template('simpleline.html',div=div,script=script)
output_file("simpleline.html")
show(fig)
fig=figure(title="Sensor data")
fig.line([1,2,3,4],[2,4,6,8])
script,div=components(fig)
if __name__ == "__main__":
app.run(debug=True,port=5002)
和HTML模板:
<!doctype html>
<html>
<head>
<title>Figure examples</title>
<link rel="stylesheet" href="http://cdn.pydata.org/bokeh-0.9.0.min.css" type="text/css" />
<script type="text/javascript" src="http://cdn.pydata.org/bokeh-0.9.0.min.js"></script>
{{ script|safe }}
</head>
<body>
<div class='bokeh'>
{{ div|safe }}
</div>
</body>
</html>
我尝试了所有的散景-0.7.1.min.js,0.9和0.10,但我仍然有相同的空白页面.
最佳答案 components()返回(script,div)元组与< script>它包含您的绘图数据和随附的< div>标记视图加载到的标记:
http://bokeh.pydata.org/en/0.10.0/docs/user_guide/embed.html#components
script, div = components(fig)
return render_template('simpleline.html',div=div, script=script)
模板
<!doctype html>
<html>
<head>
<title>Figure examples</title>
<link rel="stylesheet" href="http://cdn.pydata.org/bokeh/release/bokeh-0.10.0.min.css" type="text/css" />
<script type="text/javascript" src="http://cdn.pydata.org/bokeh/release/bokeh-0.10.0.min.js"></script>
{{ script|safe }}
</head>
<body>
<div class='bokeh'>
{{ div|safe }}
</div>
</body>
</html>