Open gebimble opened 4 years ago
How to link callbacks between bokeh CDSViews.
bokeh
CDSView
https://stackoverflow.com/a/55122888
Tony
from bokeh.plotting import figure, show from bokeh.layouts import gridplot from bokeh.models import ColumnDataSource, CDSView, BooleanFilter, CustomJS import pandas as pd data = {'person': [1, 1, 1, 2, 2, 3, 3, 3, 3], 'activities':['a', 'b', 'c', 'a', 'b', 'a', 'b', 'c', 'd'], 'hours':[3, 4, 6, 2, 7, 5, 3, 2, 12], 'foodeaten':[12, 14, 34, 45, 67, 5, -1, 3, 5]} df = pd.DataFrame(data = data) source = ColumnDataSource(data = df) views = [(df.activities == l) for l in ['a', 'b', 'c', 'd']] filtered_views = [CDSView(source = source, filters = [BooleanFilter(view.values.tolist())]) for view in views] plot_options = dict(plot_width = 250, plot_height = 250, tools = "tap,pan,wheel_zoom,reset,save", tooltips = [("Person", "@person"), ("hours", "@hours")]) plots = [figure(title = 'activity {l}'.format(l = l), **plot_options) for l in ['a', 'b', 'c', 'd', 'a', 'b', 'c', 'd']] [plot.circle('person', y = name, size = 15, view = view, source = source) for plot, view, name in zip(plots, 2 * filtered_views, 4 * ['hours'] + 4 * ['foodeaten'])] callback = CustomJS(args = dict(source = source, plots = plots), code = """ const selected_index = source.selected.indices[0] const person = source.data['person'][selected_index] var all_selected = []; for (index in source.data['index']){ if (source.data['person'][index] == person) all_selected.push(index) } source.selected.indices = all_selected; """) [plot.js_on_event('tap', callback) for plot in plots] show(gridplot(children = [plot for plot in plots], ncols = 2))
TL;DR
How to link callbacks between
bokeh
CDSView
s.Article Link
https://stackoverflow.com/a/55122888
Author
Tony
Key Takeaways
bokeh
CDSView
sUseful Code Snippets