Option to make axisLabel clickable

问题简述 (One-line summary)

In echarts 2 there was an option to make axisLabels clickable. This option seems to be gone in version 3.

版本及环境 (Version & Environment)

• ECharts 版本 (ECharts version): 3.1.3
• 浏览器类型和版本 (Browser version): Google Chrome 49.0.2623.110
• 操作系统类型和版本 (OS Version): Windows 8

期望结果 (Expected behaviour)

It would be great if xAxis: [{ axisLabel: { clickable: true } }] made the label clickable (as in version 2), so that I could capture clicks using chart.on('click').

可能哪里有问题 (What went wrong)

Unfortunately xAxis: [{ axisLabel: { clickable: true } }] has no effect in version 3 of the library.

[tmtron]

In version 4.1.0 I had to set triggerEvent = true

[pissang]

Hi @fmal , axisLabel has been added in commit https://github.com/ecomfe/echarts/commit/a6f51b166d63987aa1148cd22af38f5d933c4c75

The usage is changed. axisLabel.clickable is replaced with xAxis.silent and the params of event is a bit different.

For example

option: {
  xAxis: {
    // Enable mouse event
    silent: false
  }
}

chart.on('click', function (params) {
  // Make sure event from target axis
  if (params.componentType === 'xAxis' && params.xAxisIndex === 0) {
    // params.value is the axis label before formatted
    console.log(params.value);
  } 
});