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The grid lines on the visualization represent a tree structure underneath. Every region is a node. When a node splits, it creates four children. The root node covers the entire space. Leaf nodes (nodes with no children) hold the actual points.，这一点在Line官方版本下载中也有详细论述
Александра Статных (Редактор отдела «Путешествия»)，详情可参考夫子
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The screenshot app got some new icons for screenshot modes, and those modes now have text labels. Plus we now remember the last selected screenshot mode—perfect for when you’re taking multiple screenshots in a row.