| 1. | Study on coal bed spatial data types based on set theory 基于集合论的煤矿床空间数据模型研究 |
| 2. | Dynamic and multi - dimensional spatial data modeling : models and methods 空间数据模型与方法的研究 |
| 3. | 3d modeling methods and spatial data model of layered rock - mass 层状岩体三维构模方法与空间数据模型 |
| 4. | Research on spatial data model of pipelines network underground city geographical information system 城市地下管网地理信息系统空间数据模型研究 |
| 5. | And all kinds of spatial data models which are the basis of algorithm on visualization are discussed 并研究概括了当前流行的二维、 2 . 5维、三维各类空间数据模型与数据结构。 |
| 6. | And three kinds of spatial data model : pillar model , tin face model and section model , were built up for these three kinds of rock - mass 并通过模型实例验证了构模方法与空间数据模型的可行性。 |
| 7. | In this paper , we focus our research on spatial data model and visualization techniques on the basis of spatial database in 3d gis 本文以空间数据库为基础,主要研究三维gis中的空间数据模型和三维可视化技术。 |
| 8. | Data is the basis of sanulation . relational data model and ~ al datu modl are described , and its realhation is discussed , too 数据是仿真的基础,本文对关系数据与空间数据模型进行了描述,并讨论了它们的实现。 |
| 9. | Discusses the method of developing a component based on the presented model in detail and develops a component with some basic functions . 4 完整地描述了基于构造点集的空间数据模型的控件实现方法,并实现了该控件的基本功能。 |
| 10. | In addition to an ample research on concerning national software and information material , this article discussed the establishment and application of spatial data model by adhering to practical design and research 本文结合昆明市综合地下管网信息系统设计和开发的实际工作,探讨了地下管网空间数据模型的建立和应用。 |