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The Wikipedia article skips an important trick on how to arrange the quadtree nodes to make this work.

This link is better: http://www.drdobbs.com/jvm/an-algorithm-for-compressing-spac...

It starts very good, but does this article have multiple pages? Clicking 2 or Next at the bottom shows "something went wrong. Please contact an administrator". Tried in firefox and chrome on android

There was a second page when I posted it, but then it stopped working. Sorry.

This archive link is also semi-broken, but at least seems to have the complete article text on page 1:

https://web.archive.org/web/20120719224016/https://www.drdob...

You can click the tiny printer icon above the title to display the entire article as a single page.

Yeah, I implemented this in 2010 and the Dr. Dobbs article was essential. I even had the original C code and couldn’t figure it out without this article.

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