var chart = sb.chart.render("#chartWrap", {
    data: {
        type: "bar",
        json: [
            {"region":"서울", "2015":4.6, "2016":2.14, "2017":3.64},
            {"region":"경기", "2015":4.47, "2016":0.84, "2017":1.67},
            {"region":"강원", "2015":2.21, "2016":1.33, "2017":2.4},
            {"region":"충청", "2015":1.13, "2016":-0.7, "2017":-0.36},
            {"region":"전라", "2015":0.35, "2016":0.09, "2017":1.98},
            {"region":"경상", "2015":2.65, "2016":-1.66, "2017":-0.9},
            {"region":"제주", "2015":8.08, "2016":4.63, "2017":1.66}
        ],
        keys: {
            x: "region",
            value: ["2015", "2016", "2017"]
        }
    },
    axis: {
        x: {
            type: "category"
        }
    }
});
//show/hide
document.getElementById("chkShow").onchange = function() {
    chart.tooltip().show = this.checked;
    chart.render();
};
//grouped
document.getElementById("chkGrouped").onchange = function() {
    chart.tooltip().grouped = this.checked;
    chart.render();
};
//format
document.getElementById("chkFormat").onchange = function() {
    if(this.checked) {
        chart.tooltip({
            format: {
                title: function(x) {
                    return "지역:" + chart.data().json[x].region;
                },
                name: function(name, ratio, id, index) {
                    return name + "년";
                },
                value: function(value, ratio, id, index) {
                    return value.toFixed(2) + "%";
                }
            }
        }).render();
    } else {
        delete chart.tooltip().format;
        chart.render();
    }
};
//position
document.getElementById("chkPosition").onchange = function() {
    if(this.checked) {
        chart.tooltip({
            position: function(data, element, width, height) {
                return {top: 0, left: 25};
            }
        }).render();
    } else {
        delete chart.tooltip().position;
        chart.render();
    }
};