| 摘 要: 生成带断层地质等值线图的数据存在断层交叉及局部采样点稀疏情况,导致空间插值复杂,存在类圆等值线。利用采样数据建立约束Delaunay三角网,选择满足距离要求的采样点进行克里金插值。标记采样点和断层线顶点,分解相交断层线并构建CDT网络,生成三角形集。对所有三角形分类,形成索引表。检测类圆外围等值线变化趋势,调整方向。结果表明,分离相交断层线,可正确生成约束关系,利用索引表定位速度整体提高了42%,修正类圆等值线与局部区域构造方向一致。 |
| 关键词: 等值线 克里金插值 并行计算 地质构造图 |
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中图分类号:
文献标识码: A
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| 基金项目: 上海健康医学院地方高水平大学建设项目(22MC2022001);上海市公共卫生重点学科项目(GWVI-11.1-490);上海市公共卫生体系建设三年行动计划项目(GWVI-6);上海市卫生健康委员会2024年卫生健康政策研究课题(2024HP72);数据要素视角下基于机器学习方法的典型慢病管理应用关键技术研究———以崇明区为例(CKY2024-65) |
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| Optimized Contour Generation Technology for Geological Features |
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SUI Guohua1,DONG Minghui2,PENG Ying1,HAN Zonghe2,LI Zixiang2
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(1.Geophysical Exploration Research Institute of Shengli Oilfield, Sinopec, Dongying 257022, China;
2.College of Computer Science and Technology, China University of Petroleum, Qingdao 266580, China)
suiguohua899.slyt@sinopec.com; 1808040122@s.upc.edu.cn; pengy.slyt@sinopec.com; 1036692864@qq.com; 1847330070@qq.com
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| Abstract: Data for generating contour maps of faulted geological structures often involve intersecting faults and locally sparse sampling points, leading to complex spatial interpolation and circula-r like contours. This study constructs a constrained Delaunay triangulation (CDT) from sampling data and selects sampling points meeting distance criteria for Kriging interpolation. Sampling points and faul-t line vertices are marked, intersecting faults are decomposed, and a CDT network is built to form triangle sets. All triangles are classified into an indexed table. The variation trend of circular peripheral contours is detected to adjust their orientation. Results demonstrate that: Decomposing intersecting faults correctly establishes constraint relationships; Indexed table positioning improves overall efficiency by 42% ;
Corrected circular contours align with local structural orientations. |
| Keywords: contour lines Kriging interpolation parallel computing geological structure map |
