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针对非层状矿体三维建模的复杂性,讨论了非层状矿体三维建模中有关矿体表面和矿体块段建模基本算法.讨论了实体法建模中平行轮廓线建立非层状矿体表面模型的算法,并把该算法推广到了非平行轮廓线建模,针对利用轮廓线建立实体表面模型的问题,提出利用平面和剖面交叉的方法来产生控制线,以对矿体形态进行控制,进而利用连接轮廓线的方法来进行矿体表面建模.同时,阐述了利用三维普通克立格插值方法建立矿体内部块段模型的关键算法.最后利用VC++和OpenGL作为开发语言,从底层开发了三维非层状矿体建模的三维可视化软件,在某矿山得到了验证,对非层状矿山的实际生产起到了一定的指导作用.图5,参8.
Aiming at the complexity of three-dimensional modeling of non-layered ore bodies, the basic algorithms for modeling ore body surface and ore body blocks in three-dimensional modeling of non-layered ore bodies are discussed. The establishment of non-layered parallel lines in solid modeling In order to solve the problem of establishing solid surface model by using contour lines, this paper proposes a method to generate control lines by means of plane and cross-section cross-section, Control, and then use the method of connecting contours to mine the surface of the ore body.At the same time, the key algorithm of establishing the internal block model of the orebody by using the three-dimensional ordinary Kriging interpolation method is described.Finally, using VC ++ and OpenGL as the development language, At the bottom, a 3D visualization software for modeling 3-D non-layered orebodies was developed and verified in a mine, which has played a guiding role in the actual production of non-layered mines.