A methodology for 3D modeling and visualization of geological objects  

作　　者：ZHANG LiQiang TAN YuMin KANG ZhiZhong RUI XiaoPing ZHAO YuanYuan LIU Liu 

机构地区：[1]State Key Laboratory of Remote Sensing Science Sponsored by Beijing Normal University,Beijing 100875,China [2]School of Transportation Science and Engineer,Beijing University of Aeronautics and Astronautics,Beijing 100083,China [3]Department of Geodesy and Geomatics,School of Land Science and Technology,China University of Geosciences,Beijing 100083,China [4]College of Resources and Environment,Graduate University of Chinese Academy of Sciences,Beijing 100049,China

出　　处：《Science China Earth Sciences》2009年第7期1022-1029,共8页中国科学（地球科学英文版）

基　　金：Supported by National High Technology Research and Development Program of China (Grant Nos. 2006AA12Z220, 2006AA12Z114, 2007AA12Z226);Open Fund of State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing (Grant No. WKL(06)0304)

摘　　要：Geological body structure is the product of the geological evolution in the time dimension, which is presented in 3D configuration in the natural world. However, many geologists still record and process their geological data using the 2D or 1D pattern, which results in the loss of a large quantity of spatial data. One of the reasons is that the current methods have limitations on how to express underground geological objects. To analyze and interpret geological models, we present a layer data model to organize different kinds of geological datasets. The data model implemented the unification expression and storage of geological data and geometric models. In addition, it is a method for visualizing large-scaled geological datasets through building multi-resolution geological models rapidly, which can meet the demand of the operation, analysis, and interpretation of 3D geological objects. It proves that our methodology is competent for 3D modeling and self-adaptive visualization of large geological objects and it is a good way to solve the problem of integration and share of geological spatial data.Geological body structure is the product of the geological evolution in the time dimension, which is presented in 3D configuration in the natural world. However, many geologists still record and process their geological data using the 2D or 1D pattern, which results in the loss of a large quantity of spatial data. One of the reasons is that the current methods have limitations on how to express underground geological objects. To analyze and interpret geological models, we present a layer data model to organize different kinds of geological datasets. The data model implemented the unification expression and storage of geological data and geometric models. In addition, it is a method for visualizing large-scaled geological datasets through building multi-resolution geological models rapidly, which can meet the demand of the operation, analysis, and interpretation of 3D geological objects. It proves that our methodology is competent for 3D modeling and self-adaptive visualization of large geological objects and it is a good way to solve the problem of integration and share of geological spatial data.

关 键 词：GEOLOGICAL OBJECT GEOLOGICAL model NETWORK TRANSMISSION VISUALIZATION 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]