问题
I have created a bokeh figure which uses circle glyphs and which has a lasso_select tool. This is run from within a ipython notebook.
When I view the figure (which is representing a scatter chart), I select the circles which appear as outliers.
If there a way to reference the selected data from the notebook ? I suspect that source.selected (where source is the ColumnDataSource used to build the chart) would contain the data I want, however this always is set to:
{'0d': {'flag': False, 'indices': []},
'1d': {'indices': []},
'2d': {'indices': []}}
Perhaps this is not possible ? Or perhaps I need to use a bokeh-server ? Or perhaps I should just try to concentrate on a way to dump out the selected data from the javascript ?
The reason I want to do this is that I want to get the index for those outliers and use this index to investigate other sources of data.
Any suggestions or pointers to documentation welcome !
回答1:
Look at Callbacks This shows an example using the lasso tool.
来源：https://stackoverflow.com/questions/32909068/how-to-reference-selected-bokeh-data-points