tooltip title formatter about g2

[simaQ]

hi, you can declare formatter callback function for your tooltip title's data attribute, as follows：

chart.source(data,{ // 列定义
  'type': {
    // this will affect legend、tooltip and axis.
    formatter: function (value) {
      if (value == 1) {
        return '警告';
      }
      return '错误';
    }
  }
});

[maplor]

the scale formatter will affect legend, tooltip and axis. It can't only format the tooltip or calculate with other field data。

In G2 4.x，TooltipCfg.title set a string will make some format but not flexible, I hope a function type so.

[StevenMasini]

Hi simaQ,

Thank you for your reply.

I tried to integrate the piece of code you gave me, but still it doesn't work. If I put a console.log within the callback function, it's never called.

[StevenMasini]

Oh okay my bad. I didn't understand that here 'type' actually means the axis name.
In my dataset my axis were named 'x' and 'y'.

Everything is working perfectly, thank you very much. :-)

[solovieff]

Now this prop is removed in v2, correct? How can I achieve the same behaviour?

[visiky]

chart.scale('type', {
    // this will affect legend、tooltip and axis.
    formatter: function (value) {
      if (value == 1) {
        return '警告';
      }
      return '错误';
    }
});

[solovieff]

@Me-Momo sorry, it seems that I am talking about g2plot, which is a higher abstraction level of g2, correct?

Anyway, this behaviour does not allow you to have one axis values to be dependent on the others, I mean:

chart.scale('type', {
    // this will affect legend、tooltip and axis.
   // I can't do smth like: (value == 1 && date == X), due to I do not have date value
    formatter: function (value) {
      if (value == 1) {
        return '警告';
      }
      return '错误';
    }
});

Thanks!