Research On 3D Modeling Method And Key Theory Of Complex Entity Of Digital Mine

Three-dimensional modeling of complex entities is an important part of digital mine.By modeling the geometric shape of complex entities,it can not only improve the accuracy and intuition of geological analysis decision-making,but also promote the quantitative research and the continuous Development,in the production of safety and geological disaster prediction can play an important guiding role.This paper mainly includes four aspects: Relevant Theory and Technology of 3D Visual Modeling,digital mine complex entity three-dimensional structure modeling theory and key algorithm research and digital mining complex entity three-dimensional attribute modeling theory and key algorithm research.First of all,from the perspective of computer graphics,this paper describes the technical characteristics and principles of OpenGL,the representation of 3D entities,the geometric transformation and interactive technology of graphics,which lays a theoretical foundation for the 3D visualization of complex digital entities.Secondly,the 3D modeling of complex entities in digital mines is divided according to the spatial variation characteristics,and they are divided into three-dimensional structure modeling and 3D attribute modeling.The three-dimensional structure modeling research includes three-dimensional wireframe entity basic principle,wireframe modeling algorithm,reconstruction based on contour line surface model and proposed a three-dimensional reconstruction method of ore body surface based on spatial contour.The three-dimensional attribute modeling mainly studies the traditional block model,and introduces the octree tree block model for complex solid modeling.It studies and summarizes the block-based model construction method based on octagonal complex ore making,Improved technology of octagonal tree.Finally,based on the data of Bei Ming He iron ore and the theory and key algorithms of complex solid modeling,the basic solid model of mine is constructed.The results show that the three-dimensional modeling of complex entities of digital mine not only improves the design Work efficiency,reduce the labor intensity,but also to build a digital mine has practical significance.Digital mining complex entities of the three-dimensional modeling of the research results,to promote the digital process of mine in China to improve the efficiency of mine design staff to reduce the labor intensity of the project layout,withsignificant and far-reaching practical significance.