Highcharts添加新的數據點

Question

我試圖更新每個分鐘的高圖線圖。就像在這個鏈接中顯示的一樣jsfiddle 現在，我使用定期的JavaScript調用來繪製圖形的函數。問題是它開始從頭開始繪製它。 是否可以將新的數據點添加到現有的線上？

$(function() { 
    $.getJSON('https://www.highcharts.com/samples/data/jsonp.php? filename=usdeur.json&callback=?', function (data) { 

    $('#container').highcharts({ 
     chart: { 
      zoomType: 'x' 
     }, 
     title: { 
      text: 'USD to EUR exchange rate over time' 
     }, 
     subtitle: { 
      text: document.ontouchstart === undefined ? 
        'Click and drag in the plot area to zoom in' : 'Pinch the chart to zoom in' 
     }, 
     xAxis: { 
      type: 'datetime' 
     }, 
     yAxis: { 
      title: { 
       text: 'Exchange rate' 
      } 
     }, 
     legend: { 
      enabled: false 
     }, 
     plotOptions: { 
      area: { 
       fillColor: { 
        linearGradient: { 
         x1: 0, 
         y1: 0, 
         x2: 0, 
         y2: 1 
        }, 
        stops: [ 
         [0, Highcharts.getOptions().colors[0]], 
         [1, Highcharts.Color(Highcharts.getOptions().colors[0]).setOpacity(0).get('rgba')] 
        ] 
       }, 
       marker: { 
        radius: 2 
       }, 
       lineWidth: 1, 
       states: { 
        hover: { 
         lineWidth: 1 
        } 
       }, 
       threshold: null 
      } 
     }, 

     series: [{ 
      type: 'area', 
      name: 'USD to EUR', 
      data: data 
     }] 
    }); 
}); 

}）;

Answer 1

你應該使用addPoint函數在數據系列...

這裏是每秒

http://jsfiddle.net/gh/get/jquery/1.9.1/highslide-software/highcharts.com/tree/master/samples/highcharts/demo/dynamic-update/