On the server side, Google uses MapReduce,

http://code.google.com/edu/parallel/mapreduce-tutorial.html,

to produce the tiles.



On Nov 19, 5:06 pm, James Wang <jameswangc...@gmail.com> wrote:
> > > Step #2: Generate 10,000 tiles that are 80*80 instead (100 * 100 tiles).
>
> > > Step #3: Render tiles on-screen by drawing them on the Canvas, and
> > > support swipe gestures to move through the image by replacing tiles,
> > > much like Google Maps works.
>
> Hi Mark, AFAIK, the decoder of jpeg on android must support to read
> random part of jpeg file if I want do step#2 as you said.
> I checked out SDK reference and found out the default decoder of jpeg
> seems not support it. Am I right?
> Do I have to make another jpeg decoder?
>
> BTW, I think google map does the same thing on server side, not on
> mobile phone, does not it?

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