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From "Helder Magalhães" <helder.magalh...@gmail.com>
Subject Re: [Simple Animation and Scrolling, but how????]
Date Tue, 11 Nov 2008 12:12:13 GMT
> Now the question is, how I can always set this small circle at the middle of
> my window while it's moving...

If you just need an overlay, take a look at an excellent Batik
presentation made by Cameron [1], slides 14-17.

If you want to do this within SVG, you basically need to apply
inverted transformations to your small circle whenever a
zoom/pan/scroll event is fired.

Hope this helps,

 Helder Magalhães

[1] http://mcc.id.au/2007/09/batik-course/

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