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Robert --
the good news, this problem is dealt with in Flex 2 ---
charts can display multiple datatips if the mouse is over multiple datapoints.
The bad news is you're using Flex 1.5.
You could try and mimic this behavior by rewriting the
datatip behaviors yourself. You have the mouseData events, which tell you
when the mouse moves over and out of datapoints, and there's a method on the
individual series called findDataPoint(x:Number,y:Number,sensitivity:Number);
which you can call to find any datapoints at a given x/y coordinate. So
you could, on mouseOverData events, iterate over the series, find out if there
are multiple datapoints at that point, and show your own tooltip (using the
popup manager) as appropriate.
(Another idea...set a custom dataTipFunction, and do the
check for multiple data points _there_, and format your datatip string
appropriately).
Ely.
From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Robert Brueckmann Sent: Monday, February 13, 2006 10:51 AM To: flexcoders@yahoogroups.com Subject: [flexcoders] overlapping series line chart - flex 1.5 Does anyone have an
elegant solution on how to handle a line chart when, for example, we have 3
series in our line chart…Equities, Assets, and a Total. 3 separate
lines. In a specific case, Assets is 0 for all date points, so Equities
and Total are exactly the same, hence their lines overlap each other
identically. To a user, this might
not be immediately intuitive if they only see the chart and not the underlying
data. Is there a way to handle this? I mean would this just be a
situation where we’d have to pre-analyze the data of the chart, check if a
specific series is identical to the total and if it’s true, in the mouse-over
datatip renderer we’d have to display something that indicates to the user that
this series and the total are identical? Or is there some nifty built-in
functionality to already handle such instances where series are
identical? robert l.
brueckmann vice
president merlin
securities 16th
floor phone:
212.822.4821 fax:
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- RE: [flexcoders] overlapping series line chart - flex 1.... Ely Greenfield
- RE: [flexcoders] overlapping series line chart - fl... Robert Brueckmann
