extract2, when we know the final size of the slice, we do one heap
OsmAnd's HH-Routing is more than just an algorithm; it's a testament to innovative problem-solving. It’s a carefully engineered system born from the need to overcome specific, demanding constraints: the desire for blazing speed, minimal storage, complete routing flexibility, regional map support, and adaptability to fresh data.
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Two pixels per character
SourceBuffer: appendBuffer() method — MDN Web Docs
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