Highcharts - Change legend index order

Question

When creating a chart with stacked columns using highcharts my series are added by default from top to bottom - the first added series is placed on top. I'd like to alter this behaviour so that the last added series was on top. I tried to change index and zIndex options, but then items in legend got reordered as well. Here is a simple example: http://jsfiddle.net/6bCBf/7/.

$(function () {

    var chart = new Highcharts.Chart({

        chart: {
            type: 'column',
            renderTo: 'container'
        },

        xAxis: {
            categories: ['Jan', 'Feb', 'Mar']
        },

        plotOptions: {
            series: {
                stacking: 'normal'
             }
         },    

        series: [
            {
                name: 'base',
                data: [10, 20, 30],
                index:25,
                zIndex:10
            },
            {
                name: 'sec',
                data: [30, 20, 10],
                index:1,
                zIndex:9
            }
        ]
    });   
});

Is it possible to change stack order, but keep legend ordering? I'd just like to have legend ordered alphabetically, but items in chart added from bottom to top.

Answer 1

Yes that's most definitely possible.

What you are looking for is the parameter called legendIndex.

This will allow you to specifiy the order of the items in the legend; hence being able to switch the stacked columns and not switch the legend items.

For example, you could do the following:

series: [
        {
            name: 'base',
            data: [10, 20, 30],
            index:1,
            legendIndex:0
        },
        {
            name: 'sec',
            data: [30, 20, 10],
            index:0,
            legendIndex:1
        }
    ]

DEMO

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Update: sorting shared tooltip

In reaction to Hanoncs comment, it is possible to sort the order in a shared tooltip as in the legend by using a little hack. This hack goes as follows:

1. Use the property

   yAxis: {
       reversedStacks: false 
   },
   

2. Reverse the index property of the added series. In the example above, series 'base' then has index:0 and 'sec' is given index:1. The items in the shared tooltip will be sorted reversely.

DEMO 2

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