Zach, What I've got is a need, and the realization that all the things I've tried have failed for me. They can be made to work in a fashion, but I need production code, and these are just not doing it. So I've held off and made it something the user has to ask for in the GUI. There's also the annoying "white out" when redrawing an ATL with a lot of data, but that I've solved by a simple double-buffering scheme of having two ATLs at the same location in the page and drawing to the "background" one and then flipping them with the CSS zIndex property. That works very nicely and it gives me nearly instant updating of the data. However, I can't say that I've cracked the other. Sorry.
Bob On Sep 2, 2:04 pm, Zach Dwiel <[email protected]> wrote: > Bob: do you have any clean working code to use as an example? > > I've been working on a similar hack, which relies on hideDataColumns > and showDataColumns columns (using a column for each level of zoom). > However, sometimes, the range gets messed up. This seems to happen > because it gets to a state between switching columns where there are > no columns displayed instead of despite a specific order of operations > in the code. > > Do you have something that works? > > I'd be happy to share some of my code if anyone is interested in > trying to get it straightened out. It works for the most part. > > thanks > > zach > > On Sep 2, 8:32 am, Bob <[email protected]> wrote: > > > > > Volt, > > You might not like the answer, but in general, what you're going to > > need to do is to re-query for the higher (or lower) resolution data > > when you zoom. > > You can get intercept the zoom events by adding a listener for the > > 'rangechange' event and then seeing what the old and new limits of the > > range are. Based on those limits, you'd re-query your source and > > redraw that AnnotatedTimeLine for that new data set. > > Of course, when you needed to zoom out, you'd need to do the same, > > but this time, getting the *lower* resolution data. > > It's not ideal, but that's as good as you can currently do with the > > AnnotatedTimeLine. > > I, too, wish there were a more feature-rich data buffering scheme > > with the ATL... but at current, there just isn't. > > > Bob > > > On Sep 1, 12:46 pm, Voit <[email protected]> wrote: > > > > Does anybody have information I need - how to make Annotatedtimeline > > > to show/hide values on zoom ? --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Google Visualization API" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/google-visualization-api?hl=en -~----------~----~----~----~------~----~------~--~---
