Realization And Research Of Three-dimensional Visualization In Geological Body Based On IDL

At present, the mineral data are characterized by time-space and multi-sources and the means for acquiring mineral information are diversiform, which make the mineral resources exploration and evaluation increasingly complicated. The single access to acquire the mineral information has been far from away to meet the needs of modern mineral exploration. According to the comprehensive and effective mineral exploration methods, we can acquire the multi-sources of geoscience information. And also according to some technology and certain means for the synthesis of information in order to obtain the in-depth and hidden information has now become an inevitable trend of the research of the mineral information.Using three-dimensional visualization for the underground ore body can be a shortcut to the economic prospecting. On the premise of the full use of a large number of raw data in the mine and on the basis of finding out ore body, stratum lithology, the geological body of space structure and mutual relations, the three-dimensional visualization of the geological body processes the multi-sources of geoscience information and the mineral information with correlation and compound as well as builds the relevant physical models and mathematical models of the multi-sources of geoscience information and ore body or vein.In the end, it can realize the effective three-dimensional visualization and reconstruction of the relatively complex and irregular distribution of geological body. By observing the three-dimensional model of geological body and analysing the law in group spatial distribution of ore body, it can provide a gist to the geological analysis in the deposit, mining forecasting,mining design, day-to-day management and production management, so it can establish a basis for effectively improving the modern management level in the mine.As a matrix-oriented, simple syntax of the fourth generation of visual language, IDL (Interactive Data Language) is the ideal software tool of two-dimensional and multi-dimensional data visualization analysis and application development. From the characteristics of simple syntax, the rich variety of using embedded algorithm library, the support to the real three-dimensional data, object-oriented programming, IDL is an ideal development language of the three-dimensional geological modeling.In this paper, under the guidance of Digitalization and visual thoughts, using the space information of digital gold mine in Yunnan Province Guangnan District Laozhai Bay as research object, it uses IDL visual language to build the three-dimensional visualization model system of geological body. Not only the introduction of the raw data, but also the establishment of three-dimensional model of geological body and spatial analysis based on the model, it is always based on the visualization technology as the means and the geoscience issues as the core. On the basis of three-dimensional geological modeling technology and the status quo, from the view of systems and applications, it has the realization of the three-dimensional visualization of geological body, and thus we can get a more comprehensive understanding of the geological body spatial distribution rules to guide the deep and edge mine forecast for prospecting.Not only simulating the real geological body, but also making full use of the raw data is the main purpose of this article. Based on the analysis of mine geological concept model, combined with all kinds of unique geological phenomena of mine, it puts forward a spatial data model mixed of surface and entity and also designs the data structure. In such a mixed data model, it can select one or more appropriate data model for the describing of the variety of space targets in the geological mine in order to more fully express the relationship between geometry and topology of the space target, and reach a simple and practical purpose.