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ISPRS Int. J. Geo-Inf. 2016, 5(2), 17; doi:10.3390/ijgi5020017

Towards Automatic and Topologically Consistent 3D Regional Geological Modeling from Boundaries and Attitudes

1
College of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China
2
School of Environmental Science and Spatial Information, China University of Mine & Technology, Xuzhou 221008, China
3
Development and Research Center of China Geological Survey, Beijing 100037, China
*
Author to whom correspondence should be addressed.
Academic Editors: François Anton and Wolfgang Kainz
Received: 21 September 2015 / Revised: 6 January 2016 / Accepted: 5 February 2016 / Published: 17 February 2016
(This article belongs to the Special Issue Multi-Dimensional Spatial Data Modeling)
View Full-Text   |   Download PDF [3078 KB, uploaded 17 February 2016]   |  

Abstract

Three-dimensional (3D) geological models are important representations of the results of regional geological surveys. However, the process of constructing 3D geological models from two-dimensional (2D) geological elements remains difficult and is not necessarily robust. This paper proposes a method of migrating from 2D elements to 3D models. First, the geological interfaces were constructed using the Hermite Radial Basis Function (HRBF) to interpolate the boundaries and attitude data. Then, the subsurface geological bodies were extracted from the spatial map area using the Boolean method between the HRBF surface and the fundamental body. Finally, the top surfaces of the geological bodies were constructed by coupling the geological boundaries to digital elevation models. Based on this workflow, a prototype system was developed, and typical geological structures (e.g., folds, faults, and strata) were simulated. Geological modes were constructed through this workflow based on realistic regional geological survey data. The model construction process was rapid, and the resulting models accorded with the constraints of the original data. This method could also be used in other fields of study, including mining geology and urban geotechnical investigations. View Full-Text
Keywords: Geological map; HRBF; Geological interface; Boolean; Extraction Geological map; HRBF; Geological interface; Boolean; Extraction
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Guo, J.; Wu, L.; Zhou, W.; Jiang, J.; Li, C. Towards Automatic and Topologically Consistent 3D Regional Geological Modeling from Boundaries and Attitudes. ISPRS Int. J. Geo-Inf. 2016, 5, 17.

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