How to programmatically trigger a FigureResampler object to resample?

[arnoldjames98]

What attribute or callback should I be using? I'm embedding a FigureResampler object into a dash app.

[jonasvdd]

Hi @arnoldjames98,

I think the following code-example shows which figure-resample methods can be used to trigger the updates in a dash app.

plotly-resampler/examples/dash_apps/02_minimal_cache.py

Lines 64 to 77 in 9483326

	# The plotly-resampler callback to update the graph after a relayout event (= zoom/pan)
	# As we use the figure again as output, we need to set: allow_duplicate=True
	@app.callback(
	Output("graph-id", "figure", allow_duplicate=True),
	Input("graph-id", "relayoutData"),
	State("store", "data"), # The server side cached FigureResampler per session
	prevent_initial_call=True,
	memoize=True,
	)
	def update_fig(relayoutdata: dict, fig: FigureResampler):
	if fig is None:
	return no_update
	return fig.construct_update_data_patch(relayoutdata)