I don't have too much time to post, as I am at work, but here is a
snippet of a project I've been working on that might help:
//Dump current series to array
var allSeries:Array = bigChart.series;
//Set chart series to the array
bigChart.series = allSeries;
//Create series
var newModel:LineSeries = new LineSeries();
//Put the items into a new array collection
var tmp:ArrayCollection = new ArrayCollection(allSeries);
//Add the series
tmp.addItemAt(newModel,0);
//Reset the series array to the source of the array
collection
allSeries = tmp.source;
Probably not the best way to do this, but I can attest that it does
work.
--- In flexcoders@yahoogroups.com, "windsail05" <[EMAIL PROTECTED]> wrote:
>
> Having some troubles dynamically adding a line to a line chart. The
> code below adds a line when you click a button but deletes all the
> others. So the only line is the last one created.
>
> <?xml version="1.0" encoding="utf-8"?>
> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml";
> layout="absolute" width="100%" height="100%">
> <mx:Script>
> <![CDATA[
> import mx.charts.AxisRenderer;
> import mx.charts.CategoryAxis;
> import mx.collections.ArrayCollection;
> import mx.charts.series.LineSeries;
> import mx.charts.chartClasses.DataDescription;
>
> private var i:int = 0;
> [Bindable] private var aData:ArrayCollection = new ArrayCollection;
> private var second:Date = new Date;
> private var start:Number = new Number;
> private var end:Number = new Number;
>
> public function buttonClick():void
> {
> addLine('line', createData("line"+i), 'display', "curve")
> }
>
> public function addLine(displayName:String,
> dataProvider:ArrayCollection, yField:String, Form:String):void
> {
> var ls:LineSeries = new LineSeries();
> ls.displayName = "Line"+i;
> ls.dataProvider = dataProvider;
> ls.yField = "name";
> ls.xField = "x";
>
> var series:Array = linechart.series;
>
> series.push(ls);
>
> linechart.series. = series;
>
> //linechart.addChild(series);
> //linechart.series[i] = new ChartLine(displayName, dataProvider,
> yField, Form);
> //linechart.validateDisplayList();
> ++i;
> }
>
> public function createData(name:String):ArrayCollection
> {
> //aData.removeAll();
>
> for(var j:uint=0; j<20; j++)
> {
> start = randomNumber(end);
> end = randomNumber(start);
> aData.addItem({"name":i*10, "x": start});
> aData.addItem({"name":i*10, "x": end});
> }
> start =0;
> end=0;
> return aData;
> }
>
> public function randomNumber(greaterThan:Number):Number
> {
> return (Math.random()*10) + greaterThan;
> }
> ]]>
> </mx:Script>
> <mx:LineChart x="0" y="0" id="linechart" width="100%" height="100%"/>
>
> <mx:Legend dataProvider="{linechart}" x="838"/>
>
> <mx:Button x="214" y="21" label="add line" click="buttonClick()"/>
>
> </mx:Application>
>
