我正在尝试根据堆积图上的数据创建自定义悬停。在下面的示例中,如果用户将鼠标悬停在“ cat1”上,则应返回“ cat1_text”;相应地,“ cat2”和“ cat3”的“ cat2_text”和“ cat3_text”。
对于工具提示,由于$ name将返回'cat1','cat2'或'cat3',我以为通过添加'_text',将相应地调用该值(但当然这不是这样的方式python / bokeh作品)。我也在考虑使用任何函数/索引调用,但不太确定如何使用。好心的建议。非常感谢!
category = ['cat1', 'cat2', 'cat3']
data = {'timeVal' : [0,1,2,3,4,5],
'cat1' : [2, 1, 4, 3, 2, 4],
'cat2' : [5, 3, 4, 2, 4, 6],
'cat3' : [3, 2, 4, 4, 5, 3],
'cat1_text' : ['a','b','c','d','e','f'],
'cat2_text' : ['a1','b1','c1','d1','e1','f1'],
'cat3_text' : ['a2','b2','c2','d2','e2','f2'],
}
toolTipArr = [
("name", "$name"),
("count", "@$name"),
("info", '@'+'$name'+'_text}')
]
p = figure(x_range=(startTime,endTime), plot_height=250, plot_width=1000, title="project",
toolbar_location="right", tools="hover,pan,wheel_zoom,box_zoom,reset",
tooltips=toolTipArr)
p.vbar_stack(category, x='timeVal', width=2, color=colors, source=data,
legend=[value(x) for x in category])
稍加努力,您就可以使用CustomJS回调(Bokeh v1.3.0)实现相同的效果:
from bokeh.core.properties import value
from bokeh.models import ColumnDataSource, CustomJSHover
from bokeh.plotting import figure, show
fruits = ['Apples', 'Pears', 'Nectarines', 'Plums', 'Grapes', 'Strawberries']
years = ["2015", "2016", "2017"]
colors = ["#c9d9d3", "#718dbf", "#e84d60"]
data = {'fruits' : fruits,
'2015' : [2, 1, 4, 3, 2, 4],
'2016' : [5, 3, 4, 2, 4, 6],
'2017' : [3, 2, 4, 4, 5, 3]}
source = ColumnDataSource(data=data)
tooltips= [("name", "$name"), ("count", "@$name")]
p = figure(x_range=fruits, plot_height=350, title="Fruit Counts by Year",
toolbar_location=None, tooltips=tooltips)
renderers = p.vbar_stack(years, x='fruits', width=0.9, color=colors, source=source,
legend=[value(x) for x in years], name=years)
p.hover[0].tooltips.append(('info', '$name{custom}'))
p.hover[0].formatters = {'$name' : CustomJSHover(code = "return special_vars.name + '_text'")}
show(p)
from bokeh.core.properties import value
from bokeh.models import ColumnDataSource, HoverTool, CustomJS
from bokeh.plotting import figure, show
fruits = ['Apples', 'Pears', 'Nectarines', 'Plums', 'Grapes', 'Strawberries']
years = ["2015", "2016", "2017"]
colors = ["#c9d9d3", "#718dbf", "#e84d60"]
data = {'fruits' : fruits,
'2015' : [2, 1, 4, 3, 2, 4],
'2016' : [5, 3, 4, 2, 4, 6],
'2017' : [3, 2, 4, 4, 5, 3]}
source = ColumnDataSource(data=data)
p = figure(x_range=fruits, plot_height=350, title="Fruit Counts by Year",
toolbar_location=None, tools="")
renderers = p.vbar_stack(years, x='fruits', width=0.9, color=colors, source=source,
legend=[value(x) for x in years], name=years)
hover_code = "if (cb_data.index.indices.length > 0) { cb_obj.tooltips[2] = ['info', cb_obj.name + '_text'] }"
for renderer in renderers:
p.add_tools (HoverTool(tooltips=[("name", "$name"),
("count", "@$name"),
("info", "@info"), ],
renderers=[renderer],
name = renderer.name,
callback = CustomJS(code = hover_code)))
show(p)