摘要
体的块段模型适合表示非均匀体数据的空间分布,在矿山储量估算、地球物理、大比例深边部成矿预测等领域得到广泛应用。文章针对块段模型剖切分析时,体素数据量大,定位、求交和重构相交面效率低等问题,提出了一种面向复杂地质体块段模型的剖切方法。该方法应用八叉树和自定义体素关系表提高剖切算法效率,同时,对剖切过程中的特殊情况进行了讨论,并使用一组实际地质体进行实验。结果证明,本算法高效且具有良好的通用性。
The cutting and splitting block model of bodies is a very important method to analyze the internal structure of complicated geological bodies. Aiming at the problems of the intersections calculation between cubes and splitting plane, and the reconstruction of intersection surface, the paper presented a cutting algorithm of block model for complicated geological bodies. Firstly, it applied the octree structure to calculate the intersections between cutting planes and VOXELS. Secondly, it created two relation tables between intersections and edges and among edges in VOXELS respectively. Thirdly, it reconstructed cutting surfaces. Finally, experimental results showed the feasibility of the method.
出处
《测绘科学》
CSCD
北大核心
2014年第12期51-55,共5页
Science of Surveying and Mapping
基金
中央级公益性科研院所基本科研业务费项目(K1316)
国家科技支撑计划项目(2006BAB01A01)
863计划项目(2006AA06Z114)
