异构数据地质地形图等高线自动化内插方法研究

张珊珊; 邰文星; 邓亚梅; 邹佳; 邵云彬

张珊珊,邰文星,邓亚梅,邹佳,邵云彬.异构数据地质地形图等高线自动化内插方法研究[J].贵州地质,2025,42(4):554-560

异构数据地质地形图等高线自动化内插方法研究

Research on Automated Interpolation Methods for Contour Lines in Geological and Topographic Maps from Heterogeneous Data

投稿时间：2025-06-21

DOI：

中文关键词: ArcGIS 等高线自动化内插表面等值 SQL

英文关键词:ArcGIS Contour lines Automated interpolation Surface equivalence SQL

基金项目:贵州省地质矿产勘查开发局地质科研项目“贵州开阳地区陡山沱组层序充填与磷矿富集规律研究”(黔地矿科合〔2023〕5 号)

作者	单位
张珊珊	贵州省地质矿产勘查开发局105地质大队,贵州贵阳550018
邰文星	贵州省地质矿产勘查开发局105地质大队,贵州贵阳550018
邓亚梅	贵州省地质矿产勘查开发局105地质大队,贵州贵阳550018
邹佳	贵州地矿测绘院有限公司,贵州贵阳550018
邵云彬	贵州省地质矿产勘查开发局105地质大队,贵州贵阳550018

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中文摘要:

地形图是跨学科的基础图件之一，应用领域广泛，其在地质勘查、野外填图及地质手图钩绘中所发挥的基础作用更是不可替代。由于收集的地形图数据格式各异，且不同图幅之间等高线的间距也存在着较大差异，导致不同图幅的等高线难以拼接在一起，致使基础工作受到了较大的影响。针对以上问题，文章以某区域两幅相邻的地形图数据为应用实例，重点对不同等高距等高线的自动化内插方法进行研究与探讨。研究基于ArcGIS软件，在统一地形图数据格式的基础上，应用3D Analyst工具里面的创建TIN、表面等值线、平滑线等功能，快速自动化生成所需等高距的新等高线；然后构建SQL和Python语言，编写简单代码，提取、合并新的等高线，实现在不同图幅、不同等高距的等高线之间内插生成一条新等高线的目的，解决格式不统一和不同等高距等高线的拼接问题，提高地质工作效率。

英文摘要:

Topographic maps are one of the fundamental interdisciplinary base maps with extensive application fields，playing an indispensable foundational role in geological exploration，field mapping，and the sketching of geological hand mapsDue to the varying formats of the collected topographic map data and significant differences in contour spacing between different map sheets，the contours from different sheets are difficult to stitch together，significantly impacting the foundational workIn response to the above issues，this article takes two adjacent topographic map data in a certain area as an application example，focusing on the research and exploration of automated interpolation methods for contour lines with different equidistant intervalsBased on ArcGIS software，this study applies the functions of creating TIN，surface contour lines，smooth lines，etcin the 3D Analyst tool on the basis of a unified topographic map data format，to quickly and automatically generate new contour lines with the required contour intervals；Then build SQL and Python languages，write simple code，extract and merge new contour lines，achieve the goal of interpolating and generating a new contour line between contour lines of different map sizes and different contour intervals，solve the problems of inconsistent formats and stitching of contour lines of different contour intervals，and improve the efficiency of geological work

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