[flexcoders] Datatip date scaling problem:

[Zhu Haifeng]

Hi,

I am trying to plot a simple scalable line chart with date as x-axis and
some value as y-axis. I used DateTimeAxis for the x-axis and it is able
to nicely scale the labels to fit the axis width when I scale the data
range. However, as the label rescales, so does the date in the datatip:
therefore I get the dates of many data points to be the same...

For example, as I make the range larger, the axis label becomes Jan 06,
Feb 06, etc., instead of each consecutive date - which is fine. However,
the date of the datatip for that entire month also becomes Jan 06
instead of each individual date. Is there anyway I can correct this?
Below is my code:

         <mx:VBox verticalGap="0" width="70%" verticalScrollPolicy="off"
horizontalAlign="right">

             <mx:CartesianChart id="bigChart" showDataTips="true"
dataProvider="{mainData}" width="100%" height="100%">

                 <mx:horizontalAxis>
                     <mx:DateTimeAxis dataUnits="days" />
                 </mx:horizontalAxis>
                 <mx:horizontalAxisRenderer>
                     <mx:AxisRenderer showLine="false" />
                 </mx:horizontalAxisRenderer>

                 <mx:verticalAxis>
                     <mx:LinearAxis baseAtZero="false"/>
                 </mx:verticalAxis>
                 <mx:verticalAxisRenderer>
                     <mx:AxisRenderer styleName="vAxis" visible="true" />
                 </mx:verticalAxisRenderer>

                 <mx:series>
                     <mx:LineSeries yField="GLUCOSE" xField="DATE"
form="curve"/>
                 </mx:series>

                 <mx:annotationElements>
                     <mx:Canvas width="100%" height="100%"
buttonMode="true" mouseDown="setMouseDown(bigChart)" />
                 </mx:annotationElements>

             </mx:CartesianChart>