I believe you're having the same problem I ran into. Kudos to Brendan for the excellent example code, which it sounds like we've both made use of. ;) How many series are you adding to the chart? One thing I have noticed is that the more series, and more effects, renderers etc. that you add to the chart itself, the slower it gets. We're plotting on average, 4 series at a time as well as 3 object series (1 AS3 UI Component, 1 set of rectangular drawings, and a logo) on the chart using Ely Greenfield's chart canvas component. It does slow down as a function of points, but if you take off the drop shadows or remove a couple series or maybe thin out the points whilst zoomed out, it can pick up speed. Also, storing all that data in memory can really bog down the system. You might want to page through it, or if you are using AIR, store it to the internal SQLite DB for fast recall.
I hope that helps, -- William --- In [email protected], "Nick Gallant" <[EMAIL PROTECTED]> wrote: > > If I have let's say 5 series, each with 10000+ data points, and I > scroll through them with an HSlider with 1000 points displayed on the > screen at a time, it gets really bogged down. It also takes a really > long time to load the data initially. > > I'm actually using the Google-styled chart that you developed, and it > works great for a couple thousand points, but when I get into really > big data sets, and try to scroll it, or especially when I expand the > slider range, it bogs down. I'm wondering what performance tricks I > can use to make it faster? The ones Adobe suggests don't really do much. > > Cheers, > Nick > > > --- In [email protected], "Brendan Meutzner" <bmeutzner@> > wrote: > > > > What do you mean by unusable? Loading and rendering over 1000 > datapoints > > shouldn't be a problem for the LineChart. > > > > > > Brendan > > > > > > On Sun, Mar 9, 2008 at 3:21 PM, Nick Gallant <nick@> wrote: > > > > > I need the ability to load and display line charts with 10000+ > points. > > > Does anyone know of a third-party component that can handle this? The > > > built in Flex charts become unusable after a 1000 or so points. > > > > > > Thanks, > > > Nick > > > > > > > > > > > > > > > > > -- > > Brendan Meutzner > > http://www.meutzner.com/blog/ > > >
