i create visualization there 2 line graphs updated 1 new point per line graph per second. result this.
i have read bokeh , found out can used in visualizing streams of data in real time. don't know how code in yet.
i appreciate if can show me how task can done using bokeh. thanks!
for bokeh-0.11.1:
basically, need run python app in bokeh server. can connect server , view graph in realtime.
first, write program. use code example:
# myplot.py bokeh.plotting import figure, curdoc bokeh.driving import linear import random p = figure(plot_width=400, plot_height=400) r1 = p.line([], [], color="firebrick", line_width=2) r2 = p.line([], [], color="navy", line_width=2) ds1 = r1.data_source ds2 = r2.data_source @linear() def update(step): ds1.data['x'].append(step) ds1.data['y'].append(random.randint(0,100)) ds2.data['x'].append(step) ds2.data['y'].append(random.randint(0,100)) ds1.trigger('data', ds1.data, ds1.data) ds2.trigger('data', ds2.data, ds2.data) curdoc().add_root(p) # add periodic callback run every 500 milliseconds curdoc().add_periodic_callback(update, 500) then run server command line, program:
c:\>bokeh serve --show myplot.py this open browser realtime graph.
for details see bokeh server documentation.
