Some days ago I wrote a small bookmarklet to switch between Google Maps and Google Ditu, now I have a simple maskup which add google ditu as a customized layer in Google Maps.

The reason why Google Ditu in China can’t contain a satellite layer is the goverment’s policy. There are so many unbelieveable policies here in China, this one is just a simple example.

The satellite images and the maps don’t match well, actually that’s also a policy and requirement by China goverment…

Here is page with the code，use browser’s “view source” to see how this implemented.

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