Gantt chart legend does not toggle

[astrojuanlu]

The Gantt examples from the documentation can't toggle the resources:

https://plot.ly/python/gantt/#using-hours-and-minutes-in-times

This was already reported in #910 (comment), but I'm opening a separate issue to not clutter the original one.

[jonmmease]

Thanks for opening the dedicated issue @Juanlu001.

This would be nice, and I think it would be possible with some restructuring of the figure factory. Right now the rectangles are drawn as layout.shape objects, which aren't actually connected to a legend entry. To get toggling to work, the rectangles could be drawn as scatter traces with a fill=toself.

[johentsch]

I am experiencing the same problem: Drawing an offline Gantt chart, plotly shows the colorbar only if index_colis set to numerical values. Once index_col ist set to labels, show_colorbar=True is being ignored, no legend is shown.

Edit: Actually, it was being shown but at a position far off, I had to scroll down until the end to see it (the plot was not moving while scrolling). Now, the problem is gone because I defined a color dictionary, applying a specific color to each Resource.

[gvwilson]

Hi - we are currently trying to tidy up Plotly's public repositories to help us focus our efforts on things that will help users most. Since this issue has been sitting for several years, I'm going to close it. If it's still a concern, we'd be grateful if you could open a new issue (with a short reproducible example if appropriate) so that we can add it to our backlog. Thanks for your help - @gvwilson