On Sep 8, 6:00 pm, Geostrophic <[EMAIL PROTECTED]> wrote:
> So, upon zooming, we'd need to send a larger (dimension-wise) set of
> gif files to the API for looping?

It's up to the user.  Suppose the real GIF is 600 x 550 pixels.  For
some zoom level, the browser might have to rescale to 300 x 200 pixels
in order to fit the bounding box.  At the next higher zoom level, it
would have to be rescaled to 600 x 400 pixels.  At the next lower zoom
level, it would have to be rescaled to 150 x 100 pixels.  The
animation will be faster if the browser does not have to rescale the
GIF but it will still work if the browser does rescale the GIF.  If
the CPU is fast enough, it may not really matter.  The browser does
pixel "replication" rather than interpolation which results in blocky
appearance rather than smooth transitions.  The server can improve it
with interpolation.  IE7 has an interpolation capability but Firefox
does not.

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