Point, line and area are basic elements in GIS vector spatial data.
在矢量GIS空间数据中，点、线和面目标是它的基本要素。
We find that there is an essential difference between mutually-trapping beams and the rigorous vector spatial soliton.
结果发现“互陷”传输的光束与严格意义的矢量空间孤子之间存在本质的不同。
The experiments showed that the model can work efficiently and practically, and keep the topological insistency of the vector spatial data.
实验表明，该模型不仅可行，而且高效，并保持了空间要素和要素之间的几何拓扑一致性。
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