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Oh Dear,

I was remembering my previous research wrong.

It's quad-trees and related Z-order based curves that give log(n) search and inserts.

With those, "everything" become log^n.

- Given that, my previous argument concerning log time for triangle/polygon search should stand.

http://en.wikipedia.org/wiki/Quadtree http://en.wikipedia.org/wiki/Z-order_curve



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