Wrong legend value on series mapping

[kai2468]

Expected behaviour

Would expect the legend to stay the same if the series mapping is changed

Actual behaviour

Legend value changes from "Column 1" to "Column 2"

Live demo with steps to reproduce

http://jsfiddle.net/h6L7r2vw/

• At start legend is set to Column 1
• Remove label: 0 from series mapping
• Now legend is set to Column 2

Product version

Latest

[sebastianbochan]

Hi @kai2468,
Thank you for reporting.

Internal note
@TorsteinHonsi is it a bug or default functionality? I was not able to find any information about it in docs.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions!

[kai2468]

Any chance this can get looked at?

[PaulDalek]

Unstale.

[PaulDalek]

Hi @kai2468

Thank you for contacting us. In short, the 0 indexed value shouldn’t be considered as a series name but setting the label option with 0 makes it possible.

Internal note
It comes from the SeriesBuilder’s read function, more precisely from the below piece of code that is responsible for removing index of the x property. Setting any custom parameter with 0 index makes it still considered when looking for an index of a name.

if (typeof this.name === 'undefined' && builder.readers.length >= 2) {
  columnIndexes = builder.getReferencedColumnIndexes();
  if (columnIndexes.length >= 2) {
    // remove the first one (x col)
    columnIndexes.shift();
    // Sort the remaining
    columnIndexes.sort(function(a, b) {
      return a - b;
    });
    // Now use the lowest index as name column
    this.name = columns[columnIndexes.shift()].name;
  }
}

[maciejBL]

Hi, could we get back to the topic, since this is currently a big blocker in our project.

I've prepared the jsfiddle demo (https://jsfiddle.net/rs4vLu78/58/) to depict what's the problem, I would expect here to have different labels for series, independently from the seriesMapping contains.