Ok, let's assume that I would like to overlay my own chart.
My original charts are about 10000 pixels by 10000 pixels += 50%
In order to stop the browsers to go bananas, I split them up into tiles, of say, 600 by 600.
This is done in advance, not on-demand.

Each chart has their corresponding lat/lon bounds
then as the user pans or zooms, I figure out which charts are (partially) visible, and create overlays with them. The charts that are completely out of bounds I destroy and remove from my list, (leaving some margin)

Does this make sense ?
Is there an example of this method ?

Is there any other method that should be used, perhaps by utilizing/matching the Google tile sizes ?

Thanks
Ahmet


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