javascript - 获取位置标记线图highcharts

Question

以下示例中是否有机会使用 Highcharts 获取标记圆圈的确切位置？

Highcharts.chart('container', {

chart: {
    type: 'area',
    zoomType: 'x',
    panning: true,
    panKey: 'shift',
    scrollablePlotArea: {
        minWidth: 600
    }
},

title: {
    text: '2017 Tour de France Stage 8: Dole - Station des Rousses'
},

subtitle: {
    text: 'An annotated chart in Highcharts'
},

annotations: [{
    labelOptions: {
        backgroundColor: 'rgba(255,255,255,0.5)',
        verticalAlign: 'top',
        y: 15
    },
    labels: [{
        point: {
            xAxis: 0,
            yAxis: 0,
            x: 27.98,
            y: 255
        },
        text: 'Arbois'
    }, {
        point: {
            xAxis: 0,
            yAxis: 0,
            x: 45.5,
            y: 611
        },
        text: 'Montrond'
    }, {
        point: {
            xAxis: 0,
            yAxis: 0,
            x: 63,
            y: 651
        },
        text: 'Mont-sur-Monnet'
    }, {
        point: {
            xAxis: 0,
            yAxis: 0,
            x: 84,
            y: 789
        },
        x: -10,
        text: 'Bonlieu'
    }, {
        point: {
            xAxis: 0,
            yAxis: 0,
            x: 129.5,
            y: 382
        },
        text: 'Chassal'
    }, {
        point: {
            xAxis: 0,
            yAxis: 0,
            x: 159,
            y: 443
        },
        text: 'Saint-Claude'
    }]
}, {
    labels: [{
        point: {
            xAxis: 0,
            yAxis: 0,
            x: 101.44,
            y: 1026
        },
        x: -30,
        text: 'Col de la Joux'
    }, {
        point: {
            xAxis: 0,
            yAxis: 0,
            x: 138.5,
            y: 748
        },
        text: 'Côte de Viry'
    }, {
        point: {
            xAxis: 0,
            yAxis: 0,
            x: 176.4,
            y: 1202
        },
        text: 'Montée de la Combe<br>de Laisia Les Molunes'
    }]
}, {
    labelOptions: {
        shape: 'connector',
        align: 'right',
        justify: false,
        crop: true,
        style: {
            fontSize: '0.8em',
            textOutline: '1px white'
        }
    },
    labels: [{
        point: {
            xAxis: 0,
            yAxis: 0,
            x: 96.2,
            y: 783
        },
        text: '6.1 km climb<br>4.6% on avg.'
    }, {
        point: {
            xAxis: 0,
            yAxis: 0,
            x: 134.5,
            y: 540
        },
        text: '7.6 km climb<br>5.2% on avg.'
    }, {
        point: {
            xAxis: 0,
            yAxis: 0,
            x: 172.2,
            y: 925
        },
        text: '11.7 km climb<br>6.4% on avg.'
    }]
}],

xAxis: {
    labels: {
        format: '{value} km'
    },
    minRange: 5,
    title: {
        text: 'Distance'
    }
},

yAxis: {
    startOnTick: true,
    endOnTick: false,
    maxPadding: 0.35,
    title: {
        text: null
    },
    labels: {
        format: '{value} m'
    }
},

tooltip: {
    headerFormat: 'Distance: {point.x:.1f} km<br>',
    pointFormat: '{point.y} m a. s. l.',
    shared: true
},

legend: {
    enabled: false
},

series: [{
    data: elevationData,
    lineColor: Highcharts.getOptions().colors[1],
    color: Highcharts.getOptions().colors[2],
    fillOpacity: 0.5,
    name: 'Elevation',
    marker: {
        enabled: false
    },
    threshold: null
}]

});

我想要的是当用户点击图表时，获取标记圆圈位置

它用于注释插件，获取该点或圆的坐标，并在那里创建一个注释

为了清楚起见，这一点：

折线图

标签： javascripthighcharts

Answer 1

我使用数据数组解决了我的问题，并使用以下代码

events:{
            click: function(e){
                var x = e.xAxis[0].value,
                    y = elevationData[x.toFixed(1)*10][1];
                this.addAnnotation({
                    xValue: x,
                    yValue: y,
                    allowDragX: false,
                    allowDragY: false,
                    title:{
                            text: "Hola"
                    } ,
                    shape: 'text'
                });
                //this.redraw();
                this.redrawAnnotations();
                console.log(this.annotations);
            }
        }