ChartJS onclick填充区(雷达图)

<canvas id="radarChart"></canvas>

var ctx = document.getElementById('radarChart').getContext('2d');
var radarChart = new Chart(ctx, {
    type: 'radar',
    data: {
        labels: ['维度1', '维度2', '维度3', '维度4', '维度5'],
        datasets: [{
            label: '数据集1',
            data: [10, 20, 30, 40, 50],
            backgroundColor: 'rgba(255, 99, 132, 0.2)',
            borderColor: 'rgba(255, 99, 132, 1)',
            borderWidth: 1
        }]
    },
    options: {
        onClick: function(event, elements) {
            if (elements.length > 0) {
                var datasetIndex = elements[0]._datasetIndex;
                var index = elements[0]._index;
                var value = radarChart.data.datasets[datasetIndex].data[index];
                // 在这里可以执行点击填充区后的逻辑操作
                console.log('点击了填充区，数值为：' + value);
            }
        }
    }
});