... 到达几何学 arrival geometry 点素几何学 point geometry; pointgeometry 定位几何学 fixing geometry ...
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mass point geometry 质点几何
huge point-sampled geometry 大型三维点云数据
Point-based Geometry Processing 点云表示的几何处理
The inner call, to ST_Point(), creates a point geometry with latitude-longitude coordinates (SRID = 1).
内部调用（对 ST_Point()）创建一个具有纬度-经度坐标（SRID = 1）的点几何值。
Bad coordinates are reflected in the absence of associated point geometry values, and the trigger procedures fail silently.
错误的坐标表现为缺少相关联的点几何值，触发器过程会悄悄地终止。
When either of the coordinate columns in the source table is updated, a new point geometry must be constructed. The update trigger looks like this
当更新源表中的坐标列时，必须构造一个新的点几何值。
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