Ah, OK. I got you. I'll try that. Thanks!
--- In flexcoders@yahoogroups.com, Brendan Meutzner <bmeutzner@...> wrote:
>
> Geoff,
>
> Not literally Zero data, but blank data.
>
> I modified the following simple example from StackOverflow to show what you
> can do... see the link, and then the modified code below.
>
>
> http://stackoverflow.com/questions/3233357/flex-extending-x-axis-on-linechart-for-unknown-future-data
>
>
> <?xml version="1.0"?>
>
> <!-- charts/BasicLine.mxml -->
>
> <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:3000},
>
> {Month:"Feb", Profit:""},
>
> {Month:"Mar", Profit:""},
>
> {Month:"Apr", Profit:""},
>
> {Month:"May", Profit:3000},
>
> {Month:"Jun", Profit:2000},
>
> {Month:"Jul", Profit:3000},
>
> {Month:"Aug", Profit:4000}
>
> ]);
>
> ]]></mx:Script>
>
> <mx:Panel title="Line Chart">
>
> <mx:LineChart id="myChart"
>
> dataProvider="{expenses}"
>
> showDataTips="true"
>
> >
>
> <mx:horizontalAxis>
>
> <mx:CategoryAxis
>
> dataProvider="{expenses}"
>
> categoryField="Month"
>
> />
>
> </mx:horizontalAxis>
>
> <mx:series>
>
> <mx:LineSeries
>
> yField="Profit"
>
> displayName="Profit"
>
> interpolateValues="false"
>
> />
>
> </mx:series>
>
> </mx:LineChart>
>
> <mx:Legend dataProvider="{myChart}"/>
>
> </mx:Panel>
>
> </mx:Application>
>
>
>
>
> On Sat, Feb 18, 2012 at 12:06 AM, gtb104 <gtb104@...> wrote:
>
> > **
> >
> >
> > Brendan,
> >
> > I think that I understand what you're talking about. Just two questions.
> > What's "0" data? Is that just data with a value of zero? Also, how do I get
> > the line chart to ignore zero data?
> >
> > Thanks,
> > Geoff
> >
> >
> > --- In flexcoders@yahoogroups.com, Brendan Meutzner <bmeutzner@> wrote:
> > >
> > > Geoff,
> > >
> > > You can create a large dataset with empty, or 0 values, for your Y Axis.
> > > Then when you populate data from your service, add/append those values to
> > > the end of your dataset, while removing an equal number of empty values
> > > from the beginning of the dataset. If you've created an ArrayCollection
> > of
> > > these values, then via binding, it will update the chart automatically as
> > > you add/remove values to/from this collection. Have your line chart
> > ignore
> > > 0 values and the line won't draw at the beginning, and only begin drawing
> > > on the right where you've started populating data.
> > >
> > > Continue this process as you receive data, and eventually you will have a
> > > full dataset, and as you continue to add/remove values, your full chart
> > > line will continue updating appearing to move from right to left.
> > >
> > > Does all this make sense? I've used a Mac for years now, so I'm pulling
> > > from memory what the task manager charts look like, but I think this is
> > > accurate.
> > >
> > > Let me know if you need any clarification on the method I'm suggesting
> > > above.
> > >
> > >
> > > Brendan
> > >
> > >
> > > On Wed, Feb 15, 2012 at 12:06 PM, gtb104 <gtb104@> wrote:
> > >
> > > > **
> >
> > > >
> > > >
> > > > Rishi,
> > > >
> > > > Sorry, but I don't see how that example fulfills my request. What I'm
> > > > trying to show is basically volume over time. The x axis is time, the y
> > > > axis is volume. The chart will be feed from BlazeDS messages that will
> > be
> > > > coming in around once per second. I'd like to plot the volume data
> > points
> > > > from right to left, like how the Task Manager plots CPU performance.
> > I'm
> > > > hoping this clarifies my need.
> > > >
> > > > Thanks,
> > > > Geoff
> > > >
> > > > --- In flexcoders@yahoogroups.com, "Tandon, Rishi" <rishitandon123@>
> > > > wrote:
> > > > >
> > > > > Geoff, you can Ãâ check the Stock chart from amcharts
> > > > > http://flex.amcharts.com/examples/stock_chart_exampleÃâ
> >
> > > > >
> > > > >
> > > > > Regards,
> > > > > Rishi Tandon
> > > > >
> > > > >
> > > > > ________________________________
> > > > > From: gtb104 <gtb104@>
> > > >
> > > > > To: flexcoders@yahoogroups.com
> > > > > Sent: Wednesday, February 15, 2012 8:30 PM
> > > > > Subject: [flexcoders] Line Chart like Task Manager
> > > > >
> > > > >
> > > > > Ãâ
> >
> > > > > I'm looking to make a line chart that looks similar to Windows Task
> > > > Manager (data comes in from right to left for a fixed period of time).
> > > > Looking at the API, it doesn't appear that the LineChart natively
> > supports
> > > > that, and I couldn't find any 3rd party libraries that already do that.
> > > > Does anyone have any ideas?
> > > > >
> > > > > Thanks,
> > > > > Geoff
> > > > >
> > > >
> > > >
> > > >
> > >
> >
> >
> >
>
