js 원형차트 만들기

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<div align="center" style="width: 700px;">
    <h2>Top 5 Stocks Pie Chart</h2>
    <div id="chart_div" style="width: 700px; height: 500px;"></div>
</div>

<script type="text/javascript" src="https://www.gstatic.com/charts/loader.js"></script>
<script type="text/javascript">
    // Load the Visualization API and the corechart package.
    google.charts.load('current', {'packages':['corechart']});

    // Set a callback to run when the Google Visualization API is loaded.
    google.charts.setOnLoadCallback(drawChart);

    // Callback that creates and populates a data table,
    // instantiates the pie chart, passes in the data and
    // draws it.
    function drawChart() {
        // Create the data table.
        var data = new google.visualization.DataTable();
        data.addColumn('string', '종목명');
        data.addColumn('number', '비중');

        data.addRows([
            <% 
            if (li != null) { 
                int count = 0;
                for (StockVO m : li) {
                    if (count >= 5) break;
            %>
                ['<%= m.getCol1() %>', <%= m.getCol2() %>],
            <% 
                    count++;
                }
            } 
            %>
        ]);

        // Set chart options
        var options = {
            'title': 'Top 5 Stocks by 비중',
            'width': 700,
            'height': 500,
            'slices': {
                0: { color: '#dbd8f8' },
                1: { color: '#c6bef7' },
                2: { color: '#85B5E1' },
                3: { color: '#ebaada' },
                4: { color: '#9fd7b7' }
            }
        };

        // Check for 삼성전자 and set its color specifically
        for (var i = 0; i < data.getNumberOfRows(); i++) {
            if (data.getValue(i, 0) === '삼성전자') {
                options.slices[i] = { color: '#523bad' };
            }
        }

        // Instantiate and draw our chart, passing in some options.
        var chart = new google.visualization.PieChart(document.getElementById('chart_div'));
        chart.draw(data, options);
    }
</script>