Question

我有一个简单的散景应用程序，可以创建一个绘图并将其插入到Jinja模板中。

import io
from jinja2 import Template
from bokeh.embed import components
from bokeh.models import Range1d
from bokeh.plotting import figure
from bokeh.resources import INLINE
from bokeh.util.browser import view

template = Template("""
<html>
<head>
    <title>Bokeh with Jinja example</title>
    {{ js_resources }}
    {{ css_resources }}
    {{ script }}
</head>
<body>
<h1>This is a test</h1>
{{ myplot['myplot'] }}
</body>
</html>
""")

# The plot
TOOLS="pan,wheel_zoom,box_zoom,reset,save"
x1 = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
y1 = [0, 8, 2, 4, 6, 9, 5, 6, 25, 28, 4, 7]
xr1 = Range1d(start=0, end=30)
yr1 = Range1d(start=0, end=30)
p1 = figure(x_range=xr1, y_range=yr1, tools=TOOLS, plot_width=300,     plot_height=300)
p1.scatter(x1, y1, size=12, color="red", alpha=0.5)


js_resources = INLINE.render_js()
css_resources = INLINE.render_css()

plots = {'myplot': p1}
script, div = components(plots)

print div.keys()

html = template.render(js_resources=js_resources,
                       css_resources=css_resources,
                       script=script,
                       myplot=div)

filename = 'embed_multiple.html'

with io.open(filename, mode='w', encoding='utf-8') as f:
    f.write(html)

view(filename)

问题是：我需要定期（每5秒钟）重新读取数据（x1）并重新绘制图表以显示更新图表。

我该怎么做？我阅读了关于流的内容，但我无法使用Jinja模板实现它们。

提前致谢，詹卢卡

如何刷新基于Bokeh JInja2的应用程序

0 个答案: