Multiple level gauge chart

<script src="https://cdn.zoomcharts-cloud.com/1/nightly/zoomcharts.js"></script>
<div id="demo"></div>

//No CSS for this example 

chart= new PieChart({
    "pie": {
        "startAngle": -3.141592653589793,
        "endAngle": 0,
        "innerRadius": 0.6
    },
    "container": "demo",
    "data": [
        {
            "url": "/dvsl/data/extra/gauge.json"
        }
    ],
    "toolbar": {
        "fullscreen": true,
        "enabled": true
    },
    "interaction": {
        "resizing": {
            "enabled": false
        }
    }
})

{
    "subvalues": [
        {
            "name": "Alpha",
            "value": "200",
            "subvalues": [
                {
                    "name": "Alpha - 1",
                    "value": "10"
                },
                {
                    "name": "Alpha - 2",
                    "value": "65"
                },
                {
                    "name": "Alpha - 3",
                    "value": "35"
                },
                {
                    "name": "Alpha - 4",
                    "value": "5"
                },
                {
                    "name": "Alpha - 5",
                    "value": "85"
                }
            ]
        },
        {
            "name": "Beta",
            "value": "300",
            "subvalues": [
                {
                    "name": "Beta - 1",
                    "value": "100"
                },
                {
                    "name": "Beta - 2",
                    "value": "30"
                },
                {
                    "name": "Beta - 3",
                    "value": "100"
                },
                {
                    "name": "Beta - 4",
                    "value": "70"
                }
            ]
        }
    ]
}