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Multi-scale Data Organization and Visualization of Lithospheric Plates Based on SDOG

Author: ZuoGuoJie
Tutor: GuoZengChang；WuLiXin
School: Henan Polytechnic University
Course: Surveying and Mapping
Keywords: Sphere degradation octree grid Lithospheric plates Data processing and organization Visualization
CLC: P208
Type: Master's thesis
Year: 2011
Downloads: 42
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Abstract

The Earth's surface lithosphere is not only the most important place in human life and production activities, but also bring major disaster to human activities and strengthen the lithosphere, especially the three-dimensional structure of the shallow lithosphere is important to study. In this paper, the current of the three-dimensional structure of the lithosphere status quo, such as flat-screen mode plan and profile form is difficult to intuitive performance of the original complex three-dimensional lithospheric structure; triangular prism, generalized triangular prism the European true three-dimensional geological modeling, and data organization methods in express a wide range of lithospheric structure the deformation data cracks and measure the problem of inaccurate; direct spherical manifold space spherical grid-based expression dimension of the problem of insufficient expression model based on the three-dimensional sphere of yin and yang grid non-orthogonal spherical grid to increase the numerical computational complexity of the problem. Fully understand the basis of existing data and sphere of lithospheric plates degradation the octree grid the (SDOG) multi-level, multi-resolution and dynamic expansion coding features are as follows: 1. Lithospheric plates levels of detail table design and data collection. The current public lithosphere the data and SDOG grid visualization speed, the lithospheric model table design multi-level, combined with the model table to collect data. Data pre-processing of the lithospheric plates. Degradation characteristics based on the the grid SDOG split for multi-source heterogeneous lithosphere data pre-processing, generate a uniform latitude-longitude grid style. 3 lithospheric plate pretreatment data organization. Organization design the preprocessing data table of contents, the latitude-longitude grid lithosphere data generated and stored in a relational database. 4 lithospheric plates modeling and data organization. The pretreatment graticule data is first converted to the the design the discrete intermediate coordinate system-NsSDOG data, then converted data for grid SDOG code. Based grid SDOG lithospheric plate modeling and design the lithosphere entity table and the table of codes associated facilitate the achievement of any plates visualization. The innovation of this paper: based on a new three-dimensional spatial grid based framework-SDOG grid, designed before the modeling of the lithospheric plates and modeling the data structure of the table, and verified in the visualization, designed by the author It is feasible, data structure management data table has scalability and data structures, and a corresponding increase in the property field can be simply a data structure table.

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