Spatial data is the abstract of geographical entity in the real world.
空间数据是对现实世界地理实体的抽象。
As a special district, the town is a geographical, economic, social and cultural entity and a kind of synthesis of human and natural elements.
城镇作为特殊的地域，是地理的、经济的、社会的、文化的区域实体，是各种人文要素和自然要素的综合体。
A geo-spatial entity which can be organized from geometric data, symbol data, entity data, attribute data is regarded as an object to the object oriented geographical information model.
面向对象的地理信息模型以地理空间实体为对象，地理实体可以从几何数据、符号数据、实体数据、属性数据的角度来进行数据的组织。
A geo-spatial entity which can be organized from geometric data, symbol data, entity data, attribute data is regarded as an object to the object oriented geographical information model.
面向对象的地理信息模型以地理空间实体为对象，地理实体可以从几何数据、符号数据、实体数据、属性数据的角度来进行数据的组织。
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