地理网格编码使用方法
========
.. toctree::
    :maxdepth: 2

     网格基本能力 <knowledges/geogridcode/usage/basic_capabilities.rst>
     基于网格编码的多图层穿越查询 <knowledges/geogridcode/usage/multi_layer_query.rst>
     基于混合层级空间网格编码的查询 <knowledges/geogridcode/usage/mixed_level_query.rst>