axis pointer demoecharts 折线配置项内容和展示

      
var option = {
    legend: {},
    tooltip: {
        trigger: 'axis',
        showContent: false
    },
    dataset: {
        source: [
            ['product', '2012', '2013', '2014', '2015', '2016', '2017'],
            ['Matcha Latte', 41.1, 30.4, 65.1, 53.3, 83.8, 98.7],
            ['Milk Tea', 86.5, 92.1, 85.7, 83.1, 73.4, 55.1],
            ['Cheese Cocoa', 24.1, 67.2, 79.5, 86.4, 65.2, 82.5],
            ['Walnut Brownie', 55.2, 67.1, 69.2, 72.4, 53.9, 39.1]
        ]
    },
    xAxis: {type: 'category'},
    yAxis: {gridIndex: 0},
    grid: {top: '55%'},
    series: [
        {type: 'line', smooth: true, seriesLayoutBy: 'row'}
    ]
};


setTimeout(function () {
    myChart.on('updateAxisPointer', function (params) {
        var xAxisInfo = params.axesInfo[0];
        if (!xAxisInfo) {
            return;
        }
        var xValue = xAxisInfo.value;
        
        var xPixelCoord = myChart.convertToPixel({
            xAxisIndex: 0
        }, xValue);
        
        console.log(xPixelCoord);
    });  
}, 0);