Rotate text attached to a scatter trace [feature request]

I’d like to recreate a plot like this without using annotations:

I was thinking this could be supported through a new textangle (or similar) scatter attribute that accepts arrays and is only relevant when mode contains "text"

[MKoesters]

I’m looking for such a feature since some time, are there currently efforts implementing this? If yes, I would like to join implementing this feature, as long as it can be solved with basic js knowledge. Anyway, +1

[jackparmer]

This issue has been tagged with NEEDS SPON$OR

A community PR for this feature would certainly be welcome, but our experience is deeper features like this are difficult to complete without the Plotly maintainers leading the effort.

Sponsorship range: $10k-$15k

What Sponsorship includes:

• Completion of this feature to the Sponsor’s satisfaction, in a manner coherent with the rest of the Plotly.js library and API
• Tests for this feature
• Long-term support (continued support of this feature in the latest version of Plotly.js)
• Documentation at plotly.com/javascript
• Possibility of integrating this feature with Plotly Graphing Libraries (Python, R, F#, Julia, MATLAB, etc)
• Possibility of integrating this feature with Dash
• Feature announcement on community.plotly.com with shout out to Sponsor (or can remain anonymous)
• Gratification of advancing the world’s most downloaded, interactive scientific graphing libraries (>50M downloads across supported languages)

Please include the link to this issue when contacting us to discuss.