Volume 28, Issue 7 pp. 2357-2378
RESEARCH ARTICLE

Parametric Modeling Method for 3D Symbols of Fault Structures

An-Bo Li

Corresponding Author

An-Bo Li

Key Laboratory of Virtual Geographic Environment (Nanjing Normal University), Ministry of Education, Nanjing, China

Jiangsu Center for Collaborative Innovation in Geographical Information Resource, Development and Application, Nanjing, China

State Key Laboratory Cultivation Base of Geographical Environment Evolution (Jiangsu Province), Nanjing, China

Correspondence:

An-Bo Li ([email protected])

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Hao Chen

Hao Chen

Key Laboratory of Virtual Geographic Environment (Nanjing Normal University), Ministry of Education, Nanjing, China

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Xian-Li Xie

Xian-Li Xie

State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, China

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Guo-Nian Lü

Guo-Nian Lü

Key Laboratory of Virtual Geographic Environment (Nanjing Normal University), Ministry of Education, Nanjing, China

Jiangsu Center for Collaborative Innovation in Geographical Information Resource, Development and Application, Nanjing, China

State Key Laboratory Cultivation Base of Geographical Environment Evolution (Jiangsu Province), Nanjing, China

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Matthew Fox

Matthew Fox

Department of Earth Sciences, University College London, London, UK

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First published: 04 September 2024

Funding: This study was supported by the National Natural Science Foundation of China (Grant 41771431), the National Key R&D Program of China (Grant 2022YFB3904104), and the China Scholarship Council.

ABSTRACT

As the research and application of three-dimensional (3D) Geographic Information Science (GIS) continue to advance, the abstract representation and symbolic modeling of geological entities in three dimensions have become one of the research focuses in the current GIS field. To address the need for the symbolic representation of complex and diverse fault structures, this paper proposes a parametric modeling method for 3D fault symbols. This method includes (1) constructing a 3D stratum model and a fault plane model based on stratum and fault plane parameters, (2) performing a 3D cutting operation based on the fault plane model to generate the fault block model, and (3) translating the strata in two faultblocks according to the parameters of fault motion to generate a fault symbol model. The experimental results show that the proposed method requires only a small number of parameters to efficiently and intuitively construct diverse 3D fault symbol models. This method breaks through the excessive dependence on geological survey data in the process of 3D geological modeling. It is suitable for 3D geological symbol modeling of folds, joints, intrusions, and other geological structures, as well as 3D modeling of typical geological structures with relatively simple spatial morphology. This paper's parametric modeling method has essential research significance and application value in various applications such as digital earth, digital city, and virtual geoscience exploration.

Conflicts of Interest

The authors declare no conflicts of interest.

Data Availability Statement

The data that support the findings of this study are available on request from the corresponding author. The data are not publicly available due to privacy or ethical restrictions.

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