摘要
三维块状地质建模方法是一种重要的地质建模方法,被广泛应用于多种主流地质建模软件中。三维块体追踪技术是块状地质建模最为核心的技术之一,现有的块体追踪技术都基于模型的交线拓扑结构,当曲面模型在交线处存在一定拓扑错误,或者存在漏缝或交越现象时,将无法自动建立正确的块体模型。为此这里研究了一种完全不依赖模型交线拓扑结构的非拓扑一致性三维块体建模算法,该算法仅根据曲面模型自身形态进行块体构建,利用视觉观察技术自动追踪块体边界三角网,大幅降低了对曲面模型的要求,提高了块状建模的成功率和效率。
3D geological block modeling has been proved to be a significant method in geological modeling and has been widely used in various mainstream geological modeling software.One of the core technology of geological modeling is 3D block tracking.Existing geological modeling techniques are based on the topology of intersection curves of the model.With topology errors,cracks or crossover occur in the intersection curves of the model,the correct model will not be established.Therefore we propose a 3D geological modeling algorithm which is fully independent of the topology of intersection curves of the model.The algorithm constructs blocks only by the own form of the model and tracks the boundaries of TIN by visual observation technology,it reduces the requirements of the model and brings improved success rate and efficiency.
作者
罗开云
隆振海
何永清
蒋先艺
吴恒
宋卫锋
LUO Kaiyun;LONG Zhenhai;HE Yongqing;JINAG Xianyi;WU Heng;SONG Weifeng(Acquisition Technology Center,BGP Inc.,CNPC,Baoding 072751,China;College of Information Science&Technology,Chengdu University of Technology,Chengdu 610059,China)
出处
《物探化探计算技术》
CAS
2019年第5期690-696,共7页
Computing Techniques For Geophysical and Geochemical Exploration
基金
十三五国家重大专项课题(2017ZX05018-003)
关键词
非拓扑一致
三维地质建模
地质块体
non-topological model
three-dimension geological modeling
geological block
