2011-11-20 53 views

回答

1

您應該簡單地設置一些間隔和縮放圖表每次。例如:

private function initialZoom():void 
{ 
    var firstDate:Date = dataSet.dataProvider[0].date; 
    var endDate:Date = new Date(firstDate); 
    endDate.setDate(endDate.getDate() + 20); 
    chart.zoom(firstDate, endDate); 
    setInterval(zoomChart, 1000); 
} 

private function zoomChart():void 
{ 
    var startDate:Date = new Date(chart.startDate); 
    var endDate:Date = new Date(chart.endDate); 

    startDate.setDate(startDate.getDate() + 1); 
    endDate.setDate(endDate.getDate() + 1); 

    chart.zoom(startDate, endDate); 
} 

initialZoom應該在由AmStockChart觸發的dataUpdated事件上調用。請注意,您不應將任何期間設置爲「已選」,以使其發揮作用。