Have you figured out a way to do this by extending the LineSeries class, rather than replacing it? I can copy the code in LineSeries to my own file, and have the compiler use that, rather than the internal one. Then I can do the fix. However, I cannot actually do it by extending LineSeries, because findDataPoints references private variables and functions (like nearly all the mx functions we'd like to extend :-( ).
--- In [email protected], "g_odds" <[EMAIL PROTECTED]> wrote: > > I noticed this bug several weeks ago and fortunately I managed to find > the problem and create a workaround. > > You'll have to have a poke around in the LineSeries source code to > fully understand what I'm saying here. You need to extend the > LineSeries class and extend the findDataPoints function. In the > LineSeries' findDataPoints function the if (!isNaN(v.yFilter) && > !isNaN(v.xFilter)) condition will fail because when filterData = false > and the filterCache function of the series is called (this happens > when the min or max of an axis is set because the mapping changes) the > .yFilter and xFilter properties will be set to NaN for the points. > That makes sense in it's own way, but the upshot of that is that the > minItem variable is never set and, therefore, an empty array will > always be returned. > > So the fix is to copy the code from the LineSeries source code and in > your overriding function change the if (!isNaN(v.yFilter) && > !isNaN(v.xFilter)) condition to if (!isNaN(v.yNumber) && > !isNaN(v.xNumber)). So yes, this is a nasty little hack but I haven't > found any other way to solve the problem. > > Hope that helps, > > Graham > > > --- In [email protected], "thegiffman" <thegiffman@> wrote: > > > > If I take the standard line chart demo code, and add showDataTips to > > the line chart, they display normally. Yet, the moment I set > > filterData to false on one of the LineSeries, it kills data tips for > > this series. I think this is a bug in the charting components, as the > > data tips and the filterData attribute do not conflict for column > > charts. > > > > > > > > > > <?xml version="1.0"?> > > <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml";> > > <mx:Script><![CDATA[ > > import mx.collections.ArrayCollection; > > [Bindable] > > public var expenses:ArrayCollection = new ArrayCollection([ > > {Month: "Jan", Profit: 2000, Expenses: 1500, Amount: 450}, > > {Month: "Feb", Profit: 1000, Expenses: 200, Amount: 600}, > > {Month: "Mar", Profit: 1500, Expenses: 500, Amount: 300} > > ]); > > ]]></mx:Script> > > <mx:LineChart id="myChart" dataProvider="{expenses}" > > showDataTips="true"> > > <mx:seriesFilters> > > <mx:Array/> > > </mx:seriesFilters> > > <mx:horizontalAxis> > > <mx:CategoryAxis dataProvider="{expenses}" > > categoryField="Month"/> > > </mx:horizontalAxis> > > <mx:series> > > <mx:LineSeries yField="Profit" displayName="Profit" > > filterData="false"/> > > <mx:LineSeries yField="Expenses" displayName="Expenses"/> > > <mx:LineSeries yField="Amount" displayName="Amount"/> > > </mx:series> > > </mx:LineChart> > > </mx:Application> > > >
