Well...you'll have to look at BubbleSeries.as. The three bits of functionality you'd have to add are: 1) label management. you'd want to create one label for every item. The series do that with renderers by using a class called InstanceCache. You'd probably just want to create another instanceCache that generates Labels (or UITextFields, if you want to go low level). All the series allocate their renderer instances in udpateDisplayList 2) size reporting. Series report how much space they need in the axis ranges (when axes are generating axes automatically) in their describeData method. In that method, a series can describe a) what data values need to be displayed, and b) how much space (in pixels) is needed around those data values. You'll need to measure the sizes of your labels, and make sure the chart allows for enough space around each data point to make sure the labels are visible. 3) positioning. In your updateDisplayLIst, that's where you'll actually position each label. Ely.
________________________________ From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of simonjpalmer Sent: Wednesday, April 04, 2007 9:44 AM To: flexcoders@yahoogroups.com Subject: [flexcoders] Re: Labelling the bubbles of a bubble chart Thanks Ely, for now I think I am stuck with option 1, just because of time. If I were to embark on 3, which sounds like the right solution, can you give me some pointers on where to start looking before I dive off into the jungle and get hopelessly lost. Thanks Simon --- In flexcoders@yahoogroups.com <mailto:flexcoders%40yahoogroups.com> , "Ely Greenfield" <[EMAIL PROTECTED]> wrote: > > > > three ways, in order of difficulty: > > 1) custom bubble renderer. easy to do, but hard to do anything smart so > the labels don't overlap. > 2) custom annotation using the post from my blog. Easy to do, but not > the most efficient approach. > 3) custom bubble series. Requires rolling up your sleves and getting > into the series code, but most performant, and reusable. > > Ely. > > > ________________________________ > > From: flexcoders@yahoogroups.com <mailto:flexcoders%40yahoogroups.com> [mailto:flexcoders@yahoogroups.com <mailto:flexcoders%40yahoogroups.com> ] On > Behalf Of simonjpalmer > Sent: Sunday, April 01, 2007 3:35 PM > To: flexcoders@yahoogroups.com <mailto:flexcoders%40yahoogroups.com> > Subject: [flexcoders] Labelling the bubbles of a bubble chart > > > > I want to put a data value alongside the bubbles on my bubble chart. > Anyone know how? Ideally I would have something that was a cross > between a tooltip and the flyout labels on a pie chart. > > Any clues? >
