摘要
为了满足县级制图以及数据快速查询显示的要求,需要制作1∶50 000土地利用数据库,主要介绍了基于GIS技术,由1∶10 000缩编到1∶50 000的土地利用数据库缩编方法,包括小图斑综合处理、线状地物处理、图形概况、拓扑关系检查等内容.合理地选取地类图斑,科学地概括图斑形状,使得缩编前后的地类图斑比例保持基本一致,轮廓表达相似,充分反映各地类的分布规律是缩编的关键.数据库采用的为MDB格式,缩编软件为ARCGIS 9.2.
Based on GIS technology and the background of the second national land survey, the paper introduces the method of land use database downsized from the scale of 1 ： 10 000 to that of 1： 50 000, including comprehensive treatment of the small spot, linear feature processing, graphic profiles, topological relationship checking, etc. The object is to provide feature spot reasonably, generalize the polygon shape scientifically, make consistent of the feature polygon, and fully reflect all the distribution regulation. Database type is MDB format, and the software is ARCGIS 9.2.
出处
《华北水利水电学院学报》
2010年第6期120-122,共3页
North China Institute of Water Conservancy and Hydroelectric Power
关键词
数据库缩编
小图斑综合
MDB格式
database downsized
comprehensive treatment of small polygon
MDB format
