Afternoon all,

I've just started using the Annotated Timeline Chart, having long been
a fan of its use on Google Finance. In fact, I'm hoping to achieve a
similar effect - with high resolution data being displayed when zoomed
in on a recent date, and low resolution data when zoomed out.

Whilst this seems to be possible using the redraw approach highlighted
on 
http://code.google.com/apis/visualization/documentation/gallery/annotatedtimeline.html,
the entire graph visibly vanishes for a couple of hundred milliseconds
each time I call draw(data). This doesn't look very good at all. Given
that I don't see the same behaviour on Google Finance (and that is
definitely requesting data asynchronously from the server - Wireshark
shows this quite clearly).

My current code is extremely simple - it's exactly the same as the
example code in the URL above, except for:

1) The first call to draw is changed to: chart.draw(data,
{displayAnnotations: false, allowRedraw: true});
2) Subsequent calls to draw are simply: chart.draw(data)

I believe both of the above to be correct according to the documentation.

Any suggestions as to what I'm doing wrong here? Or is this a
limitation of the publicly available Annotated Timeline?

Thanks,

Sam

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