摘要： 提出一种基于地质约束的地质曲面重建算法，为在三维地质建模中构造线性不连续层位面片提供一种解决方案。应用“移动立方体”算法从点云重建出无约束的层位三角网格曲面，在断层曲面的约束下，利用初始点云对层位曲面进行网格拟合处理，使层位曲面的各个面片在交线附近能很好地体现断层对层位面的切分效果。实验结果证明，该算法运行稳定、有效。

关键词: 地质建模, 曲面重建, 网格拟合, 二次误差测度

Abstract: This paper presents a geology surface reconstruction algorithm based on geology constraints. A solution is introduced to aim at generating linear discontinuous horizon pieces in 3D geology modeling. Horizon triangular mesh surface without constraints is reconstructed from point cloud by applying the “marching cubes” algorithm. In order to make every piece of the horizon surface well represent the effect that faults cut horizon near the intersection line, mesh fitting process is applied to the horizon surface based on constraint of fault surfaces and using point cloud. Results demonstrate that the algorithm is stable and effective.

Key words: geology modeling, surface reconstruction, mesh fitting, Quadric Error Metrics(QEM)

中图分类号: 

• TP391