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研究了三维地质体实体建模对地质勘探数据的要求,结合三维地质体实体建模相关过程和操作,阐述了数据预处理的重要性。提出了数据预处理的数据检查、数据修正和建模辅助3个过程,并对这3个过程中的轮廓线自相交、轮廓线之间相交、任意简单多边形的重心计算算法、三维空间中的辅助标记添加等主要问题和相应解决算法进行了详细论述。实验结果表明,该些方法能够简化建模算法,具有很高的可操作性。
The requirements of 3D geologic entity modeling for geological prospecting data are studied. The importance of data preprocessing is expounded in connection with the related process and operation of 3D geological entity modeling. Proposed data preprocessing data checking, data correction and modeling aided three processes, and the three processes in the contour of self-intersecting, intersecting between the contour lines, any simple polygon center of gravity algorithm, three-dimensional space Auxiliary tags to add the main issues and the corresponding algorithm to solve the detailed discussion. Experimental results show that these methods can simplify the modeling algorithm and have high operability.