我使用的示例来自 Bokeh 文档页面，Configuring Plot Tools .
from bokeh.plotting import figure, output_file, show, ColumnDataSource
from bokeh.models import HoverTool
output_file("toolbar.html")
source = ColumnDataSource(
data=dict(
x=[1, 2, 3, 4, 5],
y=[2, 5, 8, 2, 7],
desc=['A', 'b', 'C', 'd', 'E'],
imgs = [
'http://docs.bokeh.org/static/snake.jpg',
'http://docs.bokeh.org/static/snake2.png',
'http://docs.bokeh.org/static/snake3D.png',
'http://docs.bokeh.org/static/snake4_TheRevenge.png',
'http://docs.bokeh.org/static/snakebite.jpg'
],
fonts=['<i>italics</i>',
'<pre>pre</pre>',
'<b>bold</b>',
'<small>small</small>',
'<del>del</del>'
]
)
)
hover = HoverTool(
tooltips="""
<div>
<div>
<img
src="@imgs" height="42" alt="@imgs" width="42"
style="float: left; margin: 0px 15px 15px 0px;"
border="2"
></img>
</div>
<div>
<span style="font-size: 17px; font-weight: bold;">@desc</span>
<span style="font-size: 15px; color: #966;">[$index]</span>
</div>
<div>
<span>@fonts{safe}</span>
</div>
<div>
<span style="font-size: 15px;">Location</span>
<span style="font-size: 10px; color: #696;">($x, $y)</span>
</div>
</div>
"""
)
p = figure(plot_width=400, plot_height=400, tools=[hover],
title="Mouse over the dots")
p.circle('x', 'y', size=20, source=source)
show(p)
根据这段代码，如何让HoverTool的背景变成特定的颜色，目前只能分别调整图片和文字的颜色。
最佳答案
快速搜索后，我找到了从工具提示本身覆盖 .bk-tooltip 样式的方法。
from bokeh.plotting import figure, output_file, show, ColumnDataSource
from bokeh.models import HoverTool
output_file("toolbar.html")
source = ColumnDataSource(
data=dict(
x=[1, 2, 3, 4, 5],
y=[2, 5, 8, 2, 7],
desc=['A', 'b', 'C', 'd', 'E'],
imgs = [
'http://docs.bokeh.org/static/snake.jpg',
'http://docs.bokeh.org/static/snake2.png',
'http://docs.bokeh.org/static/snake3D.png',
'http://docs.bokeh.org/static/snake4_TheRevenge.png',
'http://docs.bokeh.org/static/snakebite.jpg'
],
fonts=['<i>italics</i>',
'<pre>pre</pre>',
'<b>bold</b>',
'<small>small</small>',
'<del>del</del>'
]
)
)
hover = HoverTool(
tooltips="""
<HTML>
<HEAD>
<style>
.bk-tooltip {
background-color: red !important;
}
</style>
</HEAD>
<BODY>
<div>
<div>
<img
src="@imgs" height="42" alt="@imgs" width="42"
style="float: left; margin: 0px 15px 15px 0px;"
border="2"
></img>
</div>
<div>
<span style="font-size: 17px; font-weight: bold;">@desc</span>
<span style="font-size: 15px; color: #966;">[$index]</span>
</div>
<div>
<span>@fonts{safe}</span>
</div>
<div>
<span style="font-size: 15px;">Location</span>
<span style="font-size: 10px; color: #696;">($x, $y)</span>
</div>
</div>
</BODY>
</HTML>
"""
)
p = figure(plot_width=400, plot_height=400, tools=[hover],
title="Mouse over the dots")
p.circle('x', 'y', size=20, source=source)
show(p)
关于python - HoverTool 的背景，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/41827991/