摘要
基于ArcGIS对研究区正射影像进行人工目视解译,结合研究区实地调查资料,制作地图基础矢量数据。根据电子地图要求及研究区地物现状,分别采用点、线及面文件存储地图要素,在属性表中存储地物类别及名称,共计24个图层。在ArcGIS样式管理器中针对不同地图要素制作符号库,对不同图层进行符号设置,并设置不同图层的显示比例,利用地图打包功能制作研究区地图切片包。研究表明,地图符号的制作及切片比例尺的选择在电子地图栅格切片制作中极其重要,直接关系着切片数据是否可以应用于后续工作及研究中。在确定符号系统及切片比例尺后,基于ArcGIS可以快速制作栅格切片数据。
Based on ArcGIS,the information from orthophoto image of the study area is interpreted visually,and combined with the field survey data of the study area,the vector data of map is made.According to the requirements of the electronic map and the current situation of the ground features in the study area,the point,polyline and polygon are used to store the ground features,and the types and names of the ground features are stored in the attribute table,a total of 24 layers.In ArcGIS style manager to make map symbol library for different map elements to set symbols for different layers,and to set the display scale of different layers,and then used the map packaging function to make the map slice package of the study area.The research shows that the map symbols and the slice scale are very important in the raster slicing of electronic map,which is directly related to whether the slicing data can be used in the follow-up work and research.After determining the symbol system and slice scale,raster slice data can be quickly made based on ArcGIS.
作者
郜鲁豪
徐旌
GAO Lu-hao;XU Jing(Yunnan Provincial Surveying and mapping geographic information science and Technology Development Limited company,Kunming 650034,Yunnan,China;Yunnan University,Kunming 650500,Yunnan,China)
出处
《云南地理环境研究》
2021年第4期72-76,F0003,共6页
Yunnan Geographic Environment Research
