No bar transition when uniformtext is used
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bug
P3
- Dominant language
- JavaScript
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- Avg merge
- 2d 12h
- Merged PRs (30d)
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Description
See https://codepen.io/emmanuelle-plotly/pen/ExVWBdV : there is no transition, but if you remove the uniformtext parameters the transition works again. The corresponding Python code is
df = dict(val=[1, 4, 4, 3], x=['a', 'b', 'a', 'b'], frame=[1, 1, 2, 2])
fig = px.bar(df, x='x', y='val', animation_frame='frame', text='val')
# Comment the line below for transition to work again
fig.update_layout(uniformtext_minsize=20, uniformtext_mode='hide')
fig.update_traces(texttemplate='%{text}', textposition='inside')
fig.show()
This problem was first noticed on the forum https://community.plotly.com/t/bar-chart-animation-transition-breaks-when-uniformtext-in-layout/38394
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the linked CodePen reproduction and the provided Python example in Plotly.js. Compare the animated bar behavior with uniformtext_minsize and uniformtext_mode enabled versus removed, then confirm that the bar transition works while uniform text remains configured.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- javascript
- Domain
- data-visualization
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100