Being new to flash/flex/actionscript, I have a hard time
doing what I would like to do and hope to get some help from you.
I'd like to generate a <mx:ColumnChart/> where the
x-axis is a <mx:DateTimeAxis/> and would display only data
points that are only within X minutes to the past (for example,
only display data points for the last 15 minutes). The chart
dataProvider get updated every 30 seconds or so through a
I could not seem to find a flavor of DateTimeAxis or
Timebased data collection that would automatically eliminate data
points that are older than X minutes.
To achieve this, I currently have to set a timer in the
application, which on every tick will trigger invocation of a
function that would traverse the dataProvider and manually
eleminate that data points that has xField value (the time value)
older than 15 minutes and trigger the chart re-rendering.
Please help advise me a any other cleaner way to perform what
I would like to do.