JavaScript 怎么能获取到 highchart 中选定点的 index
怎么能获取到 highchart 中选定点的 index，如果，当鼠标移到红色位置时，获取 index 为 4 (从左至右)
$(function () {
$('#container').highcharts({
chart: {
},
xAxis: {
categories: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul',
'Aug', 'Sep', 'Oct', 'Nov', 'Dec']
},
tooltip: {
formatter: function() {
var s = '<b>'+ this.x +'</b>';
$.each(this.points, function(i, point) {
alert(i);
s += '<br/>'+ point.series.name +': '+
point.y +'m';
});
return s;
},
shared: true
},
series: [{
data: [29.9, 71.5, 106.4, 129.2, 144.0, 176.0, 135.6, 148.5, 216.4, 194.1, 95.6, 54.4]},
{
data: [216.4, 194.1, 95.6, 54.4, 29.9, 71.5, 106.4, 129.2, 144.0, 176.0, 135.6, 148.5]}]
});
});
自问自答： 自己加的 index , 通过 this.point.index 调用
$(function () {
$('#container').highcharts({
chart: {
},
tooltip: {
formatter: function() {
return 'The index for <b>'+ this.x +
'</b> is <b>'+ this.point.zindex +'</b>';
}
},
xAxis: {
categories: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']
},
series: [{
data: [{"zindex":0,"y":16.61},{"zindex":1,"y":33.0},{"zindex":2,"y":207.0},{"zindex":3,"y":329.0}, 144.0, 176.0, 135.6, 148.5, 216.4, 194.1, 95.6, 54.4]
}]
});
});