Regions with many nearby points keep subdividing. Regions with few or no points stay large. The tree adapts to the data: dense areas get fine-grained cells, sparse areas stay coarse. The split grid is predetermined (always at midpoints), but the tree only refines cells that need it. Sparse regions stay as single large nodes while dense regions subdivide deeply.
Image Credit: Sausly. Federica Mercuriello.。业内人士推荐一键获取谷歌浏览器下载作为进阶阅读
（一）应税交易的购买方为自然人；。业内人士推荐搜狗输入法2026作为进阶阅读
4. 信息不足时先列“缺失信息”，禁止臆造