Bar chart with time delay displayed with the same color

[martin-raymond]

Before the 3.0.1 :

After the 3.0.1 :

How to reproduce the bug

1. Create a bar chart
2. Add a time delay to visualize a comparison between the bar (a year, a month, it does not matter)
3. Before the 3.0.1, each couple of bar had two colors, now they are all in the same color

Environment

• superset version: 3.0.1

[sfirke]

When you say "before 3.0.1" do you mean 3.0.0 did not have this problem? What's the latest official release you've found that has the prior, desired behavior?

[martin-raymond]

we were using the 2.1.0 version, and now we have upgraded to 3.0.1 @sfirke

[michael-s-molina]

This was a side-effect of another fix. They should have the same color but we need to add a differentiator between normal and offset bars similar to what the line chart does by using dashed lines. I can take a look at this problem.

[CairoLee]

I also have the same question. For line charts, using dashed lines to differentiate offset lines for the same indicator is possible. But for bar charts, I think maintaining the previous logic might seem more reasonable.

---

I prefer to have them display different colors, especially when we are only drawing a single indicator and want to compare the data from a week ago. Showing different colors would be very convenient for observation.

But when we are drawing multiple indicators and want to compare the data from a week ago for all of them, using the same color but different styles should be more convenient for observation.

[jack-chao-htg]

In line charts, it makes the time-delay lines dotted instead of solid but in the same color. This is pretty nice, however, if you have multiple time-delay lines, they will all look identical.

[michael-s-molina]

Thank you all for the discussion.

I prefer to have them display different colors, especially when we are only drawing a single indicator and want to compare the data from a week ago. Showing different colors would be very convenient for observation.

My concerns here would be:

• Consistency on how we display offsets between charts. It will be hard for users to understand how to view offsets if we use different color strategies for every chart.
• Multiple series and their offsets. If a bar chart has multiple series, it's hard to identify the offsets if the colors don't match.

In line charts, it makes the time-delay lines dotted instead of solid but in the same color. This is pretty nice, however, if you have multiple time-delay lines, they will all look identical.

You're correct. We would be need have a number of patterns (dashed, solid, dotted, etc) equal to the number of supported offsets to differentiate the metrics.

Tagging @kasiazjc to bring the designer's perspective to the discussion.

[cdr4321]

Any update on this? We recently switched over to Superset for analytics and I've been getting some complaints about this exact issue.

[eschutho]

I noticed that the behavior is different when using multiple metrics and "Truncate Metric" is unselected if anyone wants to test that out for your use-case.

[mathieudruart]

Hi @eschutho with our use-case it doesn't seem to change anything (Superset 3.0.3) :

[cdr4321]

Same for me. We are on 3.0.1

[Naga-BI]

Same for me. Version 3.1.3. Any update on whether the issue will be fixed?

[eschutho]

We're currently looking into some improvements here. Perhaps by the 4.2 release.

[jbonaoned]

Hello, I'm checking in.When is the release of version 4.2 scheduled?

[rusackas]

It's not clear if there will be a 4.2... though there may well be. We're beginning to focus on 5.0, so 4.x.x releases will be as-needed for patches, or as-wanted by a volunteer release manager (e.g. @sadpandajoe). You can join us on slack in the various release channels if you want to keep an ear out or get involved in the process.