[Bug] Item Style not working for dataset.source

[isabellachen]

Version

5.4

Link to Minimal Reproduction

https://codepen.io/isachenx/pen/BaEooWx

Steps to Reproduce

I forked the "Distribution of Electricity" example. Instead of using series.data for x and y axis separately, I used dataset.source and added the itemStyle to the datapoint. I am trying to change the red point at index 8 to green so that the circles are always green even if line is red.

option = {
  title: {
    text: 'Distribution of Electricity',
    subtext: 'Fake Data'
  },
dataset: {
    source: [
      {
        x: '00:00',
        y: 300
      },
      {
        x: '01:15',
        y: 280,
      },
      {
        x: '02:30',
        y: 250
      },
      {
        x: '03:45',
        y: 260
      },
      {
        x: '05:00',
        y: 270
      },
      {
        x: '06:15',
        y: 300
      },
      {
        x: '07:30',
        y: 550
      },
      {
        x: '08:45',
        y: 500
      },
      {
        x: '10:00',
        y: 400,
        itemStyle: {
          color: 'green',
        }
      },
      {
        x: '11:15',
        y: 390
      },
      {
        x: '12:30',
        y: 380
      },
      {
        x: '13:45',
        y: 390
      },
      {
        x: '15:00',
        y: 400
      },
      {
        x: '16:15',
        y: 500
      },
      {
        x: '17:30',
        y: 600
      },
      {
        x: '18:45',
        y: 750
      },
      {
        x: '20:00',
        y: 800
      },
      {
        x: '21:15',
        y: 700
      },
      {
        x: '22:30',
        y: 600
      },
      {
        x: '23:45',
        y: 400
      }
    ]
  },
  xAxis: {
    type: 'category',
    boundaryGap: false
  },
  yAxis: {
    type: 'value',
    axisLabel: {
      formatter: '{value} W'
    },
    axisPointer: {
      snap: true
    }
  },
  visualMap: {
    show: false,
    dimension: 0,
    pieces: [
      {
        lte: 6,
        color: 'green'
      },
      {
        gt: 6,
        lte: 8,
        color: 'red'
      },
      {
        gt: 8,
        lte: 14,
        color: 'green'
      },
      {
        gt: 14,
        lte: 17,
        color: 'red'
      },
      {
        gt: 17,
        color: 'green'
      }
    ]
  },
  series: [
    {
      name: 'Electricity',
      type: 'line',
      smooth: true,
      // data ,
      markArea: {
        itemStyle: {
          color: 'rgba(255, 173, 177, 0.4)'
        },
        data: [
          [
            {
              name: 'Morning Peak',
              xAxis: '07:30'
            },
            {
              xAxis: '10:00'
            }
          ],
          [
            {
              name: 'Evening Peak',
              xAxis: '17:30'
            },
            {
              xAxis: '21:15'
            }
          ]
        ]
      }
    }
  ]
};

Current Behavior

Currently it is impossible to change the colour of the symbol of a single data point when using data.source array instead of series.data.

Expected Behavior

Should be able to change the symbol colour.

Environment

- OS:Sonoma 14.3
- Browser: Chrome
- Framework: None

Any additional comments?

This bug was reported before: https://github.com/apache/echarts/issues/14116

[0obuwawao0]

5.5.0 版本，dataset 同样不能正常使用 itemStyle，我需要在 饼图中定义每项的样式

[dmarthaler]

I just ran into the same problem, is there a fix? Or does anyone have any idea how to fix this?