吉林大学学报(地球科学版) ›› 2015, Vol. 45 ›› Issue (4): 1257-1268.doi: 10.13278/j.cnki.jjuese.201504305

• 地球探测与信息技术 • 上一篇    

一种可存储路径的三维非均质空间最短距离场生成算法

王丽芳1, 吴湘滨1, 张宝一1,2, 李小丽1, 杨莉1   

  1. 1. 中南大学有色金属成矿预测与地质环境监测教育部重点实验室/地球科学与信息物理学院, 长沙 410083;
    2. 中国地质大学地质过程与矿产资源国家重点实验室, 武汉 430074
  • 收稿日期:2014-10-29 发布日期:2015-07-26
  • 通讯作者: 张宝一(1979),男,在站博士后,副教授,主要从事地理信息科学研究,E-mail:zhangbaoyi@csu.edu.cn. E-mail:zhangbaoyi@csu.edu.cn
  • 作者简介:王丽芳(1979),女,博士研究生,工程师,主要从事三维地质建模研究,E-mail:csuwlf@139.com
  • 基金资助:

    国家自然科学基金项目(41302259);"十一五"国家科技支撑计划项目(2008BAB34B02)

A Path-Savable Shortest-Distance Field Generating Algorithm in Three-Dimensional Heterogenetic Space

Wang Lifang1, Wu Xiangbin1, Zhang Baoyi1,2, Li Xiaoli1, Yang Li1   

  1. 1. MOE Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring/School of Geosciences and Info-Physics, Central South University, Changsha 410083, China;
    2. State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Wuhan 430074, China
  • Received:2014-10-29 Published:2015-07-26

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摘要：

针对成矿定量预测强调三维空间信息综合研究的特殊需求和地质要素定量表达难、深层次信息挖掘难等关键问题,笔者提出了一种基于三维非均质地质空间的最短距离场算法,并且可回溯出目标体元到源体元的最短路径.应用该方法实现了对某铜矿区三维地质实体模型深层次和组合信息的挖掘,在反映断层对地质空间分划作用的基础上,建立了侵入岩体的最短距离场,可用于对侵入岩体热力场和围岩蚀变等问题的分析.

关键词: 距离场, 三维, 非均质, 路径, 成矿预测

Abstract:

A comprehensive study on three-dimensional (3D) spatial information is highly demanded for a quantitive prediction of mineralization. The difficulties are often confronted in geological feature quantitive expression and deep-seated information extraction. A shortest-distance field generating algorithm in 3D heterogenetic space is developed, which can track back to the shortest path from an object voxel to the source voxel. The algorithm has been used to a copper mine district for its deeper and comprehensive information based on the 3D geological entity model. A shortest-distance field to the intrusive rocks is calculated to analyze the geological problems, such as thermodynamic field and the alteration of surrounding rock in consideration of the roles played by the faults in dividing 3D geological space.

Key words: distance field, three-dimensional, heterogenetic, path, metallogenic prediction

中图分类号: 

  • P628.3

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