散景版:0.10 Python:3.4木星:4.x
目标:创建一个仅显示从散点图中选择的数据的表
问题:尽管有:s2.trigger('change'),DataTable在点击后才会自行刷新 . 在Bokeh网站的其他示例中,一个图将使用此技术更新另一个:请参阅http://bokeh.pydata.org/en/latest/docs/user_guide/interaction.html#customjs-for-selections
如果你使用上面提到的版本,下面的代码应该在Jupyter笔记本中运行 .
并且,感谢您的帮助 . 乔
from bokeh.io import output_notebook, show
from bokeh.plotting import figure
from bokeh.models import CustomJS, ColumnDataSource
from bokeh.models.widgets import DataTable, TableColumn
from bokeh.io import vform
output_notebook()
x = list(range(-20, 21))
y0 = [abs(xx) for xx in x]
# create a column data source for the plots to share
source = ColumnDataSource(data=dict(x=x, y0=y0))
s2 = ColumnDataSource(data=dict(x=[1],y0=[2]))
source.callback = CustomJS(args=dict(s2=s2), code="""
var inds = cb_obj.get('selected')['1d'].indices;
var d1 = cb_obj.get('data');
var d2 = s2.get('data');
d2['x'] = []
d2['y0'] = []
for (i = 0; i < inds.length; i++) {
d2['x'].push(d1['x'][inds[i]])
d2['y0'].push(d1['y0'][inds[i]])
}
s2.trigger('change');
""")
# create DataTable
columns = [
TableColumn(field="x", title="x"),
TableColumn(field="y0", title="y0"),
]
dt = DataTable(source=s2, columns=columns, width=300, height=300 )
# create a new plot and add a renderer
TOOLS = "box_select,lasso_select,help"
left = figure(tools=TOOLS, width=300, height=300)
left.circle('x', 'y0', source=source)
show(vform(left,dt))
2 回答
在
CustomJS
中仅触发s2更改,因此更改's normal that dt doesn't .这将完成工作,dt移到JS之上,dt在JS中传递,并且dt被触发:
如果您只关心更新表,那么您实际上不需要传递数据源和“数据表” . 这是因为“数据表”已将源作为属性 . 这是完整的代码(请注意,只传递“dt”):