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Pie Chart Data Structure Description¶

// Below is a demo of a pie chart (divided into 3 slices)
  {
    series: [
      {
        values: [[null, 1.33635905]],
        columns: ['time', 'pieA'],
      },
      {
        values: [[null, 1.79202423]],
        columns: ['time', 'pieB'],
      },
      {
        values: [[null, 2]],
        columns: ['time', 'pieC'],
      },
    ],
  },

Field Description:

Parameter	Type	Required	Description
series	list	Yes	Data groups, the length indicates how many slices the pie chart has
series[#]	dict		A set of data representing one slice of the pie chart
series[#].columns	list	Yes	The first item of the pie chart is fixed as the field `time`, the second item is the slice name: `['time', 'slice name']`
series[#].values	list	Yes	Two-dimensional array. In a pie chart, there should be only one data entry; if multiple, only the first one is used
series[#].values[#]	list		A data source composed of `[time value, data value]`. In the pie chart, the first value can be set to null, the second is the data value (the reference value for the pie chart proportion)

External Function Response Structure Example¶

@DFF.API('function_name', category='dataPlatform.dataQueryFunc')
def whytest_topology_test():
    data1 = 100
    data2 = 200
    data3 = 300
    #
    return {
    "content": [
      {
        "series": [
          {
            "columns": ["time", "data"],
            "values": [
              [null, data1],
              [null, data2],
              [null, data3],
            ],
          }
        ]
      }
    ]
  }