How to change the gradient of linear color scheme so that it includes negative numbers?

[ghost]

@klazaj commented on Mar 4, 2019, 4:53 PM UTC:

Make sure these boxes are checked before submitting your issue - thank you!

• I have checked the superset logs for python stacktraces and included it here as text if there are any.
• I have reproduced the issue with at least the latest released version of superset.
• I have checked the issue tracker for the same issue and I haven't found one similar.

Superset version

0.999.0dev

Expected results

In the linear color scheme the negative numbers are shown as one color, and the color only starts to change when starting from 0. How can I change the range to [-1, 1]?

Actual results

Steps to reproduce

This issue was moved by kristw from apache/incubator-superset#6974.

[ghost]

@kristw commented on Mar 4, 2019, 5:56 PM UTC:

Which chart is this?

[ghost]

@klazaj commented on Mar 4, 2019, 6:37 PM UTC:

kristw it is the country map chart

[ghost]

@klazaj commented on Mar 29, 2019, 10:38 AM UTC:

kristw any updates on this bug?

[ghost]

@kristw commented on Apr 10, 2019, 4:29 PM UTC:

/move apache-superset/superset-ui-plugins

[ghost]

move[bot] commented on Apr 10, 2019, 4:29 PM UTC:

⚠️ The GitHub App must be installed for the target repository.

[zufolo441]

I have a similar problem: I have to represent values very close each other (from 8 to 14)
, and the color isn't graduated from min to max, but quite the same. I tried to look in countrymap.js but no success.
is it possible to solve in some way? thanks.

[klazaj]

@zufolo441 maybe normalize your values so that they fall in the [0,1] range and then plot them in the chart

[zufolo441]

Thanks for the answer, but this morning I solved: I had to change from SUM() to AVG(). Notice that data itself are not aggregated: table has a row for each italian province, so sum() == avg().