利用Python提取三维属性数据的路线剖面地形线绘制  

Drawing topographic line of route section by Python to extract 3D property data

作　　者：潘黎黎 林龙斌 李细光 PAN Lili;LIN Longbin;LI Xiguang(Zhuhai Engineering Exploration Institute of Guangdong,Zhuhai 519002,Guangdong,China;The Third Geological Engineering Investigation Institute of Shanxi Province,Jinzhong 030620,Shanxi China;The Earthquake Administration of Guangxi Zhuang Autonomous Region,Nanning 530022,Guangxi,China)

机构地区：[1]广东省珠海工程勘察院,广东珠海519002 [2]山西省第三地质工程勘察院,山西晋中030620 [3]广西壮族自治区地震局,广西南宁530022

出　　处：《矿产与地质》2020年第4期839-844,共6页Mineral Resources and Geology

基　　金：广西科学研究与技术开发计划项目(桂科AB17195022,桂科AB18126040)资助。

摘　　要：为解决在无数字化地形图的情况下自动生成信手剖面地形线的问题,提出一种基于Python和Section软件处理从RGMap系统导出的地质点属性数据的自动绘制方法。主要利用Python脚本提取地质点属性数据中的平面投影x、y坐标和高程数据,自动计算相邻地质点间的水平距离,通过累加求和的方式,获得包含各地质点横、纵坐标及点号的表格文件。结合Section软件表格数据投影、自动标注等功能即可自动绘制路线信手剖面地形线。利用Python提取、处理地质点属性数据,结合Section导入数据绘制地形线可极大地提高工作效率,减少人为因素带来的误差,提高数据的准确度。In order to solve the problem of automatically generating topographic line of free hand section without digital topographic map,an automatic drawing method is proposed on the basis of Python and Section softwares for processing geological point attribute data exported from RGMap system.Python script is mainly used to extract the plane projection x,y coordinates and elevation data in the geological point attribute data,automatically calculate the horizontal distance between adjacent geological points,and obtain the table file of horizontal and vertical coordinates and point numbers of each point by accumulating and summing.Combined with Section software table data projection,automatic labeling and other functions,the topographic line of free hand section can be automatically drawn.The use of Python to extract and process geological point attribute data,combined with Section import data to draw topographic lines can greatly improve work efficiency,reduce errors caused by human factor,and improve data accuracy.

关 键 词：路线信手剖面 地形线 数字地质填图系统RGMap Python脚本 Section软件 

分 类 号：P623[天文地球—地质矿产勘探]