(function() {

    const cv = d3wb.initCanvas({
        width: 500,
        height: 400,
        margin: {
            top: 0,
            right: 100,
            bottom: 0,
            left: 0
        },
        data: "data_protocols.json"
    })

    d3.json(cv.config.data, function(error, data) {
        if (error) throw error;
        var sum = d3.sum(data, function(d) {
            return +d.count;
        })
        data.forEach(function(d) {
            d.percent = (+d.count / sum) * 100
        });
        d3wb.visualizeDonutChart(data, cv);

    });
}())