QGIS插件技术在点状地图符号转换中的应用  

Application of QGIS plugin technology in conversion of point symbols

作　　者：陈雅慧 CHEN Yahui(China Earthquake Networks Center,Beijing 100045,China)

机构地区：[1]中国地震台网中心,北京100045

出　　处：《地震地磁观测与研究》2023年第3期192-198,共7页Seismological and Geomagnetic Observation and Research

基　　金：地震应急青年重点任务:开源GIS地图符号转换插件研发(项目编号:CEAEDEM022)。

摘　　要：地震系统的核心技术及软硬件设备需提升安全防护能力,实现“自主可控”,在应用开源地理信息系统软件QGIS进行地震应急制图时,要解决地震数据符号库由ArcGIS平台向QGIS平台转换的问题。运用QGIS插件技术创建点符号转换插件,通过符号库输入、符号读取、符号属性转换、QGIS符号创建、符号库输出等步骤,实现点符号的转换。结果表明,QGIS插件技术能够实现跨平台的点符号转换,并且表现出转换效率和成功率高、制图效果强的特点。本次QGIS插件技术在点符号转换方面的应用也为线符号、面符号转换提供了参考。Due to the need to improve the security and protection capabilities of the seismic system’score technology,hardware and software equipment,and achieve“independence and controllability”,it is necessary to apply the open-source GIS software QGIS for earthquake emergency mapping,and there is a need to solve the problem of converting the symbol library of seismic data from ArcGIS to QGIS.This paper uses QGIS plugin technology to create a point symbol conversion plugin,achieving point symbol conversion through steps such as symbol library input,symbol reading,symbol attribute conversion,QGIS symbolcreation,and symbol library output.The results show that QGIS plug-in technology can realize cross-platform point symbol conversion with high conversion efficiency and success rate,and strong mapping effects.The application of QGIS plugin technology in point symbol conversion also provides a reference for line symbol and surface symbol conversion.

关 键 词：QGIS插件 符号转换 ARCGIS 地震应急 

分 类 号：P208[天文地球—地图制图学与地理信息工程] P285[天文地球—测绘科学与技术]