摘要
地质露头在地质研究中极为重要,但其研究现状是不同地质研究人员对同一地质露头分多批次进行实地踏勘,各自进行的工作之间重复性过高但关联性不够,这样导致传统地质露头研究方式既耗费大量财力精力且效率不高。随着Web技术和实景三维建模技术的发展,在Web环境下开展数字露头实景三维模型研究与应用逐渐成为当前的研究热点,也使得在线数字露头研究成为了可能。同时,地层研究也是地质露头研究中的一个重要组成部分。因此,笔者面向Web环境,针对地层要素这一要点,研究了基于Cesium进行数字露头三维模型地层要素标绘的方法,通过调用和扩展Cesium库,设计了一套基于地层标绘线、面与文字的完整标绘方法,并详细阐述了其工作流程。以陕西府谷悬空寺露头为例,进行了一系列地层要素标绘,标绘效果较好。研究表明,笔者提出的针对数字露头的三维模型地层要素标绘方法具有标绘准确、高效、易用的特点,可以满足专业地质研究人员的工作需求,并对地质露头研究具有较大帮助。
Geological outcrops play a vital role in geological studies.However,the current situation of geological outcrop research is that different geological researchers carry out field surveys of the same geological outcrop in multiple batches,and their work is too repetitive but not relevant enough,which leads to the traditional research method of geological outcrop spends a lot of financial resources and energy but low efficiency.With the development of Web technology and real scene 3D modeling technology,the research and application of digital outcrop real scene 3D models in the Web environment has gradually become the current research hotspot,making it possible to study geological outcrops online.Meanwhile,stratigraphic research is also a vital component of geological outcrop research.Therefore,facing the Web environment and aiming at stratum elements,this paper studies the method of plotting digital outcrop 3D model stratum elements based on Cesium,designs a complete plotting method based on stratum plotting line,surface,and text by calling and expanding Cesium library,and expounds its workflow in detail.This paper takes the outcrop of Xuankong Temple in Fugu,Shaanxi province,as an example to analyze the case and the three main work steps area as follows:①Stratigraphic:plotting of lines,surfaces,and texts;②The realization of some standard extended function of plotting stratum elements;③Storage and reading of a complete set of stratigraphic plotting elements.Moreover,the case illustrates three advantages of this method:①The model loading is precise and fast;②The plotting stratigraphic element is accurate and easy;③The storage and reading of stratigraphic plotting elements is efficient.Therefore,The results show that the 3D model mapping method for digital outcrops can meet professional geological researchers’work needs and greatly help the study of geological outcrops.This method is accurate,efficient,and easy to use.
作者
凌嘉扬
陈建华
王炳乾
王帅琪
吴玉清
周文峰
LING Jiayang;CHEN Jianhua;WANG Bingqian;WANG Shuaiqi;WU Yuqing;ZHOU Wenfeng(Chengdu University of Technology,College of Geophysics,Chengdu 610059,China)
出处
《物探化探计算技术》
CAS
2024年第5期607-617,共11页
Computing Techniques For Geophysical and Geochemical Exploration
基金
国家科技重大专项项目课题(2016ZX05050005)。
