@theengineear @jackparmer @cldougl

Awesome! I'm not gonna have time to take a solid peek at this until later in the week. One quick comment though. It might be cool to have a label for the color scale (about the %task done).

Awesome! I'm not gonna have time to take a solid peek at this until later in the week. One quick comment though. It might be cool to have a label for the color scale (about the %task done).

You mean like 'Portland' over top the colorscale bar?

Ah, sorry, totally vague. I mean like:

It's cool if others think this is a bad call, but I wonder if folks who don't know what a gantt chart is would understand what those colors mean immediately.

It's cool if others think this is a bad call, but I wonder if folks who don't know what a gantt chart is would understand what those colors mean immediately.

We should just paste the full doc string on the side of the graph.

It's cool if others think this is a bad call, but I wonder if folks who don't know what a gantt chart is would understand what those colors mean immediately.

Makes sense to me, I didn't get what the color bar was for either. Should we make the color bar and sequential colorscale a kwarg rather than the default? I think the default color meaning on Gantt charts is usually categorical with a qualitative color palette. I'm thinking of this one, for example, http://moderndata.plot.ly/gantt-charts-in-r-using-plotly/. Or the colors simply help the eye differentiate between different tasks. In either case, no need for a color bar.

Or the colors simply help the eye differentiate between different tasks. In either case, no need for a color bar.

Okay. Will get cracking on this shortly.

@theengineear @jackparmer

I just need to add dictionary compatibility so a user can assign a color to a value in the indexing column.

@theengineear @jackparmer

Tests are working.

I want to get a legend working in this Gantt chart as well. @theengineear do you have any ideas on how to do this? I tried appending some stuff to data to just display the legend, but it didn't work.

I want to get a legend working in this Gantt chart as well.

Can you show me a mock of what you're trying to achieve? It can be incredibly rough, or even just a text description.

Hey @Kully - You could try using the legendonly attribute for a scatter trace type, then make the scatter the same color as the Gantt rectangle and turn off hover text:

https://plot.ly/python/reference/#scatter-visible

Then you could get optional labels in the legend like "Task 1", "Task 2", that match the color of the Gantt rectangles.

Can you show me a mock of what you're trying to achieve? It can be incredibly rough, or even just a text description.

@etpinard or @mdtusz could you give us a pointer on this one?

#460 (comment)

I want to get a legend working in this Gantt chart as well. ...I tried appending some stuff to data to just display the legend, but it didn't work.

It seems like we need to get shapes to show in the legend. (1) possible? (2) is there a workaround that you can think of?

The legendonly seems like it would work, did you get a chance to try that @Kully?

The legendonly seems like it would work, did you get a chance to try that @Kully?

I tried it out but didn't have any luck. The legend wasn't showing up but I may have been doing it wrong.

It seems like we need to get shapes to show in the legend. (1) possible? (2) is there a workaround that you can think of?

I think it should be possible (as I got the colormap to be visible via an invisible trace). I think I might be missing something with my syntax

@theengineear

Awesome! 💃 after you've added those tests! The other comments are non-blocking.