````md
::: echarts A nightingale chart
```json
{
  "legend": {
    "top": "bottom"
  },
  "toolbox": {
    "show": true,
    "feature": {
      "mark": {
        "show": true
      },
      "dataView": {
        "show": true,
        "readOnly": false
      },
      "restore": {
        "show": true
      },
      "saveAsImage": {
        "show": true
      }
    }
  },
  "series": [
    {
      "name": "Nightingale Chart",
      "type": "pie",
      "radius": [20, 100],
      "center": ["50%", "50%"],
      "roseType": "area",
      "itemStyle": {
        "borderRadius": 8
      },
      "data": [
        {
          "value": 40,
          "name": "rose 1"
        },
        {
          "value": 38,
          "name": "rose 2"
        },
        {
          "value": 32,
          "name": "rose 3"
        },
        {
          "value": 30,
          "name": "rose 4"
        },
        {
          "value": 28,
          "name": "rose 5"
        },
        {
          "value": 26,
          "name": "rose 6"
        },
        {
          "value": 22,
          "name": "rose 7"
        },
        {
          "value": 18,
          "name": "rose 8"
        }
      ]
    }
  ]
}
```
:::
````
