The following is the same question that I asked at http://stackoverflow.com/questions/32975709/bokeh-multi-line-and-hovertool.
In Bokeh 0.10.0 we can use HoverTool for lines. But can we use it for multi_line? For example, when running the following code,
from bokeh.models import ColumnDataSource
from bokeh.models import HoverTool
from bokeh.plotting import figure, output_file, show
x = [1, 2, 3, 4, 5]
ys = [[6, 7, 2, 4, 5], [5, 4, 2, 7, 6]]
hover = HoverTool(
tooltips=[
("(x,y)", “($x, $y)”),
(“label”, “@label”),
]
)
output_file(“test_bokeh.html”, title=“bokeh feature test”)
p = figure(title=‘figure’, x_axis_label=‘x’, y_axis_label=‘y’, tools=[hover])
line_source = ColumnDataSource({
‘x’: x,
‘y’: x,
‘label’: [‘single line’] * 5,
})
p.line(‘x’, ‘x’, source=line_source)
multi_line_source = ColumnDataSource({
‘xs’: [x, x],
‘ys’: ys,
‘label’: [‘line 0’, ‘line_1’],
‘color’: [‘red’, ‘blue’],
})
p.multi_line(‘xs’, ‘ys’, color=‘color’, source=multi_line_source)
show(p)
``
It correctly displays a tooltip for the line plot but nothing for the
multi_line plot. Am I doing something wrong, or is HoverTool not implemented for multi_line?