Drilldown multiple levels Highchart

Question

We like to Drilldown on multiple levels in Highchart. Is there already an example in Highchart?

Currently used code:

$(div).highcharts({
    chart: {type: 'column'},
    credits: {enabled: false},          
    title: {text: title},
    xAxis: {
        categories: [
            'Instroom',
            'Rijdend',
            'Úitstroom'
        ]
    },
    yAxis: {title: {text: ytitle}},
    legend: {enabled: true},
    plotOptions: {series: { borderWidth: 1, dataLabels: {enabled: true,}}},
    series: first,
    drilldown: {
        series: drillDownObject(second)
    }
});

Answer 1

It's possible, just add all drilldown series, then create a connection between point and drilldown. See: https://jsfiddle.net/BlackLabel/rpt741xc/

    series: [{
        name: 'Things',
        colorByPoint: true,
        data: [{
            name: 'Animals',
            y: 5,
            drilldown: 'animals'
        }]
    }],
    drilldown: {
        series: [{
            id: 'animals',
            name: 'Animals',
            data: [{
                name: 'Cats',
                y: 4,
                drilldown: 'cats'
            }, ['Dogs', 2],
                ['Cows', 1],
                ['Sheep', 2],
                ['Pigs', 1]
            ]
        }, {

            id: 'cats',
            data: [1, 2, 3]
        }]
    }

Answer 2

For a mutiple levels pie chart check out http://jsfiddle.net/bge14m3a/1/

$(function () {

    // Create the chart
    $('#container').highcharts({
        chart: {
            type: 'pie'
        },
        title: {
            text: 'Deep drilldown'
        },
        xAxis: {
            type: 'category'
        },

        legend: {
            enabled: false
        },

        plotOptions: {
            series: {
                borderWidth: 0,
                dataLabels: {
                    enabled: true,
                }
            }
        },

        series: [{
            name: 'Things',
            colorByPoint: true,
            data: [{
                name: 'Animals',
                y: 5,
                drilldown: 'animals'
            },{
                name: 'Food',
                y: 4,
                drilldown: 'food'
            }]
        }],
        drilldown: {
            series: [{
                id: 'food',
                name: 'Food',
                data: [{
                    name: 'Apple',
                    y: 1.5,
                    drilldown: 'apple'
                },
                    ['Banana', 1],
                    ['Peer', 0.5],
                    ['Pineapple', 1]
                ]
            }, {

                id: 'apple',
                data: [['1/6' ,1],
                      ['1/3' , 2],
                      ['1/2' , 3]]
            },{
                id: 'animals',
                name: 'Animals',
                data: [{
                    name: 'Cats',
                    y: 5,
                    drilldown: 'cats'
                }, ['Dogs', 2],
                    ['Cows', 1],
                    ['Sheep', 1],
                    ['Pigs', 1]
                ]
            }, {

                id: 'cats',
                data: [1, 2, 3]
            }]
        }
    })
});

Answer 3

<script src="js/jquery-2.0.2.min.js"></script>  
    <script src="js/highcharts.js"></script>  
    <script src="js/drilldown.js"></script>  
    <script>  
        var chartSeriesData = [];
  var chartDrilldownData = [];

$.ajax({
type: 'GET',
url: 'abc.json',
success: function(data) {


    var agentJson = data;

    for (var i = 0;i <agentJson.countryInfo.length; i++)

        {

        var series_name = agentJson.countryInfo[i].name;
        var drill_id = agentJson.countryInfo[i].drilldown;
        var series_data = agentJson.countryInfo[i].y;

        var drill_data = agentJson.countryInfo[i].data;


              chartSeriesData.push({
                 name: series_name,
                 y: parseFloat(series_data),
                 drilldown : drill_id                                     
              }); 


         chartDrilldownData.push({
             data : drill_data,
             id: drill_id,
             name: series_name,

         });


        }

    /// END FOR LOOP


    $('#countryInfo').highcharts({

        credits: {
            enabled: false
        },

        chart: {
            type: 'pie',
            backgroundColor:'rgba(255, 255, 255, 0.1)'
        },
        title: {
            text: 'Human Resources'
        },

        subtitle: {
            text: ''
        },
        plotOptions: {
            series: {
                cursor: 'pointer',
                dataLabels: {
                    enabled: true,
                    format: '{point.name}: {point.y:.1f}%',
                    style: {
                        color: '#000',
                        fontWeight: 'bold',
                        fontSize: '12px',
                        textShadow: "0px #ffffff"

                     }
                }
            }
        },

        tooltip: {
            headerFormat: '<span style="font-size:11px">{series.name}</span><br>',
            pointFormat: '<span style="color:{point.color}">{point.name}</span>: <b>{point.y:.2f}%</b> of total<br/>'
        },
        series: [{
            name: 'Country',
            colorByPoint: true,
            data: chartSeriesData
        }],
        drilldown: {
             series: chartDrilldownData
            }
    });



}


});


    </script>  


and your json file look likes:

{"countryInfo":[{"name":"Firefox","y":4,"drilldown":"Firefox","data":[["desktop",1]]},{"name":"Chrome","y":176,"drilldown":"Chrome","data":[["desktop",1],["desktop",18]]}]}

Answer 4

Here is an example that preserves the names on the axis. (Drilldown works on "Animals" > "Mammals")

Drilldown options looks like this:

drilldown: {
  series: [{
    id: 'animals',
    data: [{
        name: 'Mammals',
        y: 4,
        drilldown: 'mammals'
      },
      ['Reptiles', 2],
      ['Vertebrates', 1]
    ]
  }, {
    id: 'mammals',
    data: [['Cats', 3], ['Dogs', 2], ['Platypus', 1]]
  },
  ...

http://jsfiddle.net/vcsqnr2z/