基于可拓学的三维地质体统一数据模型及其建模方法研究

项目名称： 基于可拓学的三维地质体统一数据模型及其建模方法研究

项目编号： No.41301405

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 天文学、地球科学

项目作者： 孟耀伟

作者单位： 许昌学院

项目金额： 25万元

中文摘要： 地质空间的三维可视化是三维地理信息系统的重要研究方向，是数字地球和数字地城市建设的重要支撑，对地下矿产资源和地下空间利用有着重要意义。本课题以可拓学基元模型为形式化描述工具，研究描述地质空间对象几何形态、属性和空间关系等信息为一体的可拓地质体数据模型，并实现复杂地质空间概念模型、逻辑模型和可视化模型的统一表达。研究可拓集合理论在统一数据模型中对定量和定性、确定和模糊信息的描述结构，设计地质体几何对象可拓性计算算法，探讨统一数据模型的可拓分析特性。研究从统一概念模型到逻辑模型转换的多条件约束映射规则和计算过程，通过一次模型自动转换完成三维地质建模。本课题的研究为解决三维地质建模的快速建模和动态更新提供了解决方法，为三维地质模型的应用研究提供了新的理论依据和技术支持。

中文关键词： 三维地质建模；三维空间可视化；数据模型；可拓学；动态更新

英文摘要： Three-dimensional visualization of geological space which is an important research direction of 3D geographic information system, supporting the development of digital city and digital earth, has important significance on the underground mineral resources and utilization of underground space. Based on formal description method of the extenics basic-element model, the geological geometry, attribute and spatial relationship information of spatial objects is unified in an extension of geological data model, and the conceptual model, logical model and visualization model of complex geological spatial also are described in unified expression. Research on extension set theory in describing the structure of a unified data model of quantitative and qualitative, determined and fuzzy information, design of geological body extension algorithm of object geometry, characteristic analysis of unified data model. Research on multiple constraint mapping rule and calculation procession in the conversion from unified conceptual model to logic model, and 3D geological modeling is done automatically through one model conversion. This research provides a solution for quick modeling and dynamic update to solve three-dimensional geological modeling, which provides a new theoretical basis and technical support for the application of 3D

英文关键词： Three-dimensional Geological modeling；Three-dimensional Spatial Visualization；Data Model；Extenics；Dynamic update