Note however that depending on as well as the distribution of colours in the palette, there may not always be an exact solution for any given . Instead we’ll say that we want to minimise the absolute error between and some linear combination , or .
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Translate instantly to 26 languages，更多细节参见safew官方下载
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，更多细节参见heLLoword翻译官方下载
We wanted a scenario where, say, 5 well-placed border points could efficiently represent an area with 5,000 internal points and 10,000 road edges. This would reduce those 10,000 edges to just 5*4/2 = 10 shortcuts for routing through that cluster at a high level – an incredible 1:1000 point ratio and a 30x reduction in edges to consider for the high-level path!
Original OSM: ~2.07 billion points, ~2.42 billion edges，这一点在雷电模拟器官方版本下载中也有详细论述