A Study On The Integration Of Digital Line Plan In Yunnan Province

1:10000 Digital Line Graphic is an important part of 1:10000 fundamental geographic information.The building of 1:10000 fundamental geographic information datebase became strongly of all the provinces, municipalities and autonomous regions.They will make the fundamental geographic information shared by the whole nation and on the application and development of Didital China Geo-spatial Framework.lt will be realize on the foundations of deviously interlocking ang quickly updating the fundamental geographic information datebase.The difference in structure between the building of 1:10000 fundamental geographic information datebase and 1:50000 national fundamental geographic information datebase and it is too hard to achive the relation and integration between vertical and horizontal.It produced a great negative impact on the aim of realizing Didital China Geo-spatial Framework and make the fundamental geographic information shared by the whole nation Compared to the national standardized document,in spite of fundamental geographic information datebase of Yunnan province have been completed,but there be still a gap of 1:10000 fundamental geographic information datebase of Yunnan province on data standard.The article aimed to share of geographic information background at the starting point.A lot of problems on the integration of geographic information on the current has been analyzed.Expounds the practical meaning on the integration of DLG data.The classification and characteristics of DLG data has been analyzed.A discussion on the integration of main content with frame and key technologies has been analyzed. According to the general principle of integration design and referring to related national standards and technical standards.Designed on the integration of 1:10000 DLG data in Yunnan Province of the technology pathway,the methods of operation,the product platform,the process of requirement,the tests and analyses,data quality control and so on.According to the technical characteristics of the data integration and requirements,aimed to analyzed the data foamat,cording system,data model,classification codes,interity and the current situation and prospect on 1:10000 fundamental geographic information datebase of Yunnan province in detail.Established the technical route and method Establised rational and feasibile technical route and method of data integration.Quality control and analysis of data precision.Practice has proved the requirements of the quality standard in database integration.The article aimed to research contents and methods of DLG data integration apply to the project of 1:10000 DEM,DOM,DRG data integration,which is important to upgrad and integration of 1:10000 fundamental geographic information datebase.