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Multi-body index construction method for three-dimensional geologic structure model

A structural model and three-dimensional geological technology, applied in the direction of instrumentation, computing, electrical digital data processing, etc., to save time and resources and meet the effect of real-time data scheduling

Active Publication Date: 2014-08-27
CHINA UNIV OF MINING & TECH (BEIJING)
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Problems solved by technology

This brings a huge real-time and efficient processing burden to the visualization and spatial analysis of the structural model of the entire study area.

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  • Multi-body index construction method for three-dimensional geologic structure model
  • Multi-body index construction method for three-dimensional geologic structure model
  • Multi-body index construction method for three-dimensional geologic structure model

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Embodiment Construction

[0044] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0045]In order to solve the above technical problems, the embodiment of the present invention starts from the visualization and spatial analysis of the structural model for analysis. In the prior art, when performing visualization and spatial analysis processing, the strategies for large-scale data are mainly block, external memory model, multi-resolution and LOD three-dimensional spatial index, etc. The index model of the structur...

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Abstract

The invention provides a multi-body index construction method for a three-dimensional geologic structure model. The method comprises the steps that a transverse segmentation R tree index is adopted for generating a multi-geologic-body R tree index; an LOD model is constructed for each geologic monomer according to the following steps, the monomer LOD models comprise main TINs, simplified sequences and octree indexes, layer-by-layer simplification processing is carried out on TIN faces of geologic monomers by using a progressive grid edge folding simplification method, and one simplification sequence is formed every time the edge folding simplification operation is carried out; the simplified geologic monomers are composed of main TIN grids and the simplified sequences, and the main TIN grids are simplest grids after the geologic monomers are simplified; the generated simplified sequences are indexed by using the octree indexes, and the needed simplified sequences are located; a multi-body index model of the three-dimensional geologic structure model is constructed by combining the multi-geologic-body R tree index and the monomer LOD models. According to the method, the problem that great real-time efficient processing burdens are caused by visualization and analysis of a structural model in the prior art can be solved.

Description

technical field [0001] The invention relates to the field of three-dimensional geological model data management, in particular to a method for constructing a multi-body index of a three-dimensional geological structure model. Background technique [0002] The three-dimensional geological structure model is seamlessly joined together by multiple geological bodies, and each geological body is closed into a complete geometric surface by an irregular triangular network. In the process of visualizing multivariate urban geological data, it is often necessary to couple and display structural models of different themes, such as bedrock and Cenozoic strata. For the structural model of a research area, there may be tens of thousands of geological bodies, and each geological body has tens of thousands or hundreds of thousands of triangles. The amount of these data is often multiplied with the modeling accuracy and display effect, especially the number of triangles of the geological bo...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
CPCG06F16/2246
Inventor 王占刚
Owner CHINA UNIV OF MINING & TECH (BEIJING)
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