A methodology for 3D modeling and visualization of geological objects

Abstract

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 object, geological model, network transmission, visualization Geological objects are composed of different kinds of data, such as borehole data, topography data, rock and soil data, geophysical and hydrological data. Geological and borehole data, in particular, provide useful information about the earth surface and underground. Therefore, they are used in many fields, such as city construction, resource exploration, environmental problems, and transportation. The related technical improvement provides new opportunities for analysis of geological data. The geological models describe the observations in different geological conditions through interpolation and interpretation. At present, it lacks a general model of geological data, which results in much time wasted on rebuilding data structure. Sometimes, geologists recognize visualization relevance by log or overlay of paper plot. This method surely can figure out reliable results, but it is time-consuming and has a heavy load. Especially, man-made error affects modeling precision in the process of study different geological spatial patterns by browsing tables.With the development of computer software, the techniques of interactive demonstration and visualization help overcome the shortcomings of the tables and plots. To manage and store large geological datasets, we propose the node-layer data model called NVDM. Geological object visualization is based on the tri-prism unit. First, preprocess the original borehole data and interpolate the strata into regular grids. Then, connect the grids

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