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Animations: let 'Play' button support different durations for different frames

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#5,362 2 comments 0 reactions 0 assignees View on GitHub

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Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
48/100
Issue type
Feature
Clarity
Mostly clear
Activity status
Quiet
Tech stack
python
Domain
data-visualization

Research direction

Start with the animation configuration passed through fig.update_layout, especially updatemenus buttons using method animate and args. Trace how frame and transition durations are interpreted, then define and test a way for Play to use per-frame values while preserving the current single-duration form.

Written by the indexing model from the issue text.

Description

community feature P3

So far the button Play only support a single frame duration and a single transition duration for all the steps of the animation. It would be very useful to support different duration values at different frame step. Note that I haven't any way to define specific duration per frame, I am open to suggestions.

Current:

fig.update_layout(
    updatemenus=[{
        'type': 'buttons',
        'buttons': [
            {
                'label': 'Play',
                'method': 'animate',
                'args': [None, {
                    'fromcurrent': True,
                    'frame': {'duration': 100, 'redraw': False},
                    'transition': {'duration': 100}
                }]
            }
        ]
    }]
)

Possible alternative way to pass information:

fig.update_layout(
    updatemenus=[{
        'type': 'buttons',
        'buttons': [
            {
                'label': 'Play',
                'method': 'animate',
                'args': [None, {
                    'fromcurrent': True,
                    'frame': [(str(i), {'duration': 100 if i%2 == 0 else 1000, 'redraw': False}) for i in range(len(frames))],
                    'transition': [(str(i), {'duration': 100 if i%2 == 0 else 1000}) for i in range(len(frames))]
                }]
            }
        ]
    }]
)
Dominant language
Python
Stars
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Forks
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Avg merge
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Merged PRs (30d)
21

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