一种小地质体智能综合方法  

An intelligent generalization method for simple small geological bodies in geologic mapping

作　　者：何文娜[1,2] 朱长青 徐可[3] 陈圆圆 李仰春 蒋作瑞[6] 陈堂雷 HE WenNa;ZHU ChangQing;XU Ke;CHEN YuanYuan;LI YangChun;JIANG ZuoRui;CHEN TangLei(Department of Basic Course Teaching,Jilin Sport University,Changchun 130012,China;Key Laboratory of Virtual Geographic Environment of Ministry of Education,Nanjing Normal University,Nanjing 210023,China;College of Geo-exploration Science and Technology,Jilin University,Changchun 130061,China;Regional Geological Survey Institute of Hebei Province,Langfang 065000,China;Development and Research Center of China Geological Survey,Beijing 100037,China;Beijing Space Time Technique Development Limited Company,Beijing 100083,China)

机构地区：[1]吉林体育学院基础教学部,长春130012 [2]南京师范大学虚拟地理环境教育部重点实验室,南京210023 [3]吉林大学地球探测科学与技术学院,长春130061 [4]河北省区域地质调查院,廊坊065000 [5]中国地质调查局发展研究中心,北京100037 [6]北京创时空科技发展有限公司,北京100083

出　　处：《地球物理学进展》2021年第3期1267-1275,共9页Progress in Geophysics

基　　金：国家重点研发计划(2017YFC0602203,2016YFC0600501,2016YFC0600501-04);中国地质调查项目(DD20190415)联合资助。

摘　　要：地质图缩编大多关注重要性较高地质体的综合任务,对面积较小地质体(如侵入体)的处理重视不够,而小地质体因其面积及与周边地质体或围岩关系等特殊性,处理环节较为复杂且耗时.为了解决上述问题,本文开展了面向地质编图的小地质体智能综合的探索性研究.以常规小地质体综合为研究目标,系统分析小地质体与周边大地质体之间相邻关系原理,提出了一套包括完全包含消除、单地质体相邻合并、双地质体相邻合并、双地质体裁剪合并等算法的小地质体智能综合方法,定义了以空间关系协助小地质体消除的属性判别规则,设计了小地质体综合实现技术的算法逻辑.基于MapGIS组件研制了小地质体智能综合算法,可"一键式"自动运行或人机交互式操作.使用真实地质数据对小地质体智能综合模块进行多轮检验、对比,结果表明综合后地质体符合地质规律、几何形态自然美观、全图拓扑关系正确,可大大减轻编图工作量.该算法已融入中国地质调查局研制的"智绘地质"软件,将进一步促进地质图件编制的智能化.Geological map downsizing pays much attention to generalize relative important geological bodies and spend little time to deal with small geological bodies(such as intruder).It is very complex and time consuming to manipulate small geological bodies because their area is too little and the geospatial relationship with surrounded ones is complicated.In order to solve the above problems,comprehensive exploratory research on small body intelligence for geological mapping is performed in this paper and we proposes a new solution to generalize small geological bodies intelligently.This paper focuses on generalization of normal small geological bodies and then analyzes spatial adjacent relationship between small geologic bodies with surrounding large geological bodies systematically.An innovative method is proposed for small geological body intelligent generalization that includes eliminating surrounded completely,merging into a single geospatial adjacent large geological body,merging into two geospatial adjacent large geological bodies and merging into two large adjacent ones by cutting-off first.Property judgement rules for the new way aided by geospatial relationship are designed detailedly to perform this new generalization flexibly.Formalized logics for the innovative proposal are described and listed comprehensively.The intelligent algorithm of small geological body generalization is implemented based on MapGIS components.The algorithm can run automatically by one-click or operate interactively as a software module.Real geologic data is used to test,check and compare small geological body generalization functions many times.The results imply which generalized geologic bodies in the target map comply with the laws of geology,their geometric shapes are natural and topological relationship is correct in the full map.These functions can reduce geologic mapping sharply.This proposed algorithm has already been integrated into iMapower developed by China Geological Survey,it will further promote the intelligent compilat

关 键 词：小地质体 智能综合 地质编图 人工智能 地图综合 

分 类 号：P631[天文地球—地质矿产勘探]