CODEWITHSUNDEEP
pythondatetimeplotly-dashdatetimepicker
Helios
Helios

Reputation: 715

Dash Plotly Datetime Selection

Is there anything in Dash world that gives a nice interface for inputting datetimes/timedeltas (doesnt matter what type, np, pd, dt etc)? I can only find code that really supports dates currently https://dash.plotly.com/dash-core-components/datepickersingle. I am trying to create a plotting tool for real time sensor data, at the moment it runs in "streaming mode" with a set lookback, this just updates an animated graph every 2 seconds and "rolls" across the screen. I would also like to have a historical look and be able to set the start and end datetimes on the call to the database.

Upvotes: 3

Views: 5690

Answers (1)

Helios
Helios

Reputation: 715

Minimal example using html input type

from dash import Dash, dcc

app = Dash(__name__)
app.layout = dcc.Input(type="datetime-local", step="1")
if __name__ == '__main__':
    app.run_server()

here step="1" gives seconds, the standard view seems to only give minutes (step="60" would give minutes, step="3600" hours, step="0.001" millis etc)

NB: This is not supported officially by dash https://dash.plotly.com/dash-core-components/input

ALLOWED_TYPES = (
    "text", "number", "password", "email", "search",
    "tel", "url", "range", "hidden",
)

which means to run in debug mode you would need to turn off dev_tools_props_check

app.run_server(debug=True, dev_tools_props_check=False)

The main problem seems to be browser support https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input/datetime-local#handling_browser_support

Upvotes: 4

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