I've a database with lots of different data.
I made a Jupyter notebook with a number of ipywidgets to select the data I want to see / select / delete / etc.
For now I plotted the data with Timeseries in Bokeh.
But as the plots might become large (10 million or more points), drawing becames very slow (upto minutes).
(Another problem seems to be a memory leak, but that be my clumsy programming).
So now I moved to datashader for plotting, it seems to very fast, uses much less memory and doesn't show up a memory leak, GREAT.
But one thing I can't get working: how to update the datashader plot, after Ive made a different selection ?
The only way I get the datashader plot visisble is to put the definition in the last line of a jupyter cell, like
InteractiveImage ( p, DummyFunctie )
So for now I make a selection with some buttons, go to the celle where the datashader plot is definied and rerun that cell.
Any solution will be very welcome.