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随着Highcharts的传说中值插件http://www.highcharts.com/plugin-registry/single/10/Value-In-Legend,我能够实现一种多个系列的总数,但我不明白如何获得点击总数y轴点。例如,当我点击时,有一天我会得到3个独立的序列号,但我想总得到一个总数,但我只知道负载上的y点和重绘时的可见y点。我认为难度在于获得3个系列积分的总和与获得个人积分的价值。如何获得多个系列的总计
$(function() {
// Start the standard Highcharts setup
var seriesOptions = [],
yAxisOptions = [],
seriesCounter = 0,
names = ['MSFT', 'AAPL', 'GOOG'],
colors = Highcharts.getOptions().colors;
$.each(names, function(i, name) {
$.getJSON('http://www.highcharts.com/samples/data/jsonp.php?filename=' + name.toLowerCase() + '-c.json&callback=?', function(data) {
seriesOptions[i] = {
name: name,
data: data
};
// As we're loading the data asynchronously, we don't know what order it will arrive. So
// we keep a counter and create the chart when all the data is loaded.
seriesCounter++;
if(seriesCounter == names.length) {
createChart();
}
});
});
// create the chart when all data is loaded
function createChart() {
$('#container').highcharts('StockChart', {
chart: {
events: {
load: function(event) {
console.log('load');
var total = 0;
for(var i = 0, len = this.series[0].yData.length; i < len; i++) {
total += this.series[0].yData[i];
}
totalText_posts = this.renderer.text('Total: ' + total, this.plotLeft, this.plotTop - 35).attr({
zIndex: 5
}).add()
},
redraw: function(chart) {
console.log('redraw');
console.log(totalText_posts);
var total = 0;
for(var i = 0, len = this.series[0].yData.length; i < len; i++) {
if(this.series[0].points[i] && this.series[0].points[i].visible) total += this.series[0].yData[i];
}
totalText_posts.element.innerHTML = 'Total: ' + total;
}
}
},
rangeSelector: {
selected: 4
},
yAxis: {
labels: {
formatter: function() {
return(this.value > 0 ? '+' : '') + this.value + '%';
}
},
plotLines: [{
value: 0,
width: 2,
color: 'silver'
}]
},
legend: {
enabled: true,
floating: true,
align: 'left',
verticalAlign: 'top',
y: 35,
labelFormat: '<span style="color:{color}">{name}</span>: <b>{point.y:.2f} USD</b> ({point.change:.2f}%)<br/>',
borderWidth: 0
},
plotOptions: {
series: {
compare: 'percent',
cursor: 'pointer',
point: {
events: {
click: function() {
alert('Category: ' + this.category + ', value: ' + this.y);
}
}
}
}
},
series: seriesOptions
});
}
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="http://code.highcharts.com/stock/highstock.src.js"></script>
<script src="http://code.highcharts.com/stock/modules/exporting.js"></script>
<script src="https://rawgithub.com/highslide-software/value-in-legend/master/value-in-legend.js"></script>
<div id="container" style="height: 400px; min-width: 500px"></div>