The Design And Implementation Of Spatial Data Management System Based On Mapstation

With the emergence of vector data model based on military digital map,the way we work,the working process and operation resultsare changing.In order to improve the efficience,reduce duplication of work,we need integration software of library publishing.The software before already cannot satisfy the need.At present the integration software of 1:50000 topographic already meet the need under the “New generation of 1:50000 task” traction.However,the requirements and model of 1:10000 topographic map need further research,library publish software remain to be further perfect.The paper is on the basis of our independent research and development of Micro Station/J,based on a new generation of 1:50000 software platform.On the basis of analyzing the difference and contact of 1:10000 and 1:50000,the paper study the topographic map production requirements,focuses on the software,storage function,print function three aspects of 1:50000 topographic map.The paper established the data model of 1:10000 topographic map,implemnet the operating software that could satisfy the requirementof integration,improve the production automation level.The paper main research content includes:1?The theoretical foundation of the 1:10000 topographic map software.The paper expounded the working environment of the preparation,resrespectively to study three aspects of the need file,work space,user configuration;The paper annlyzed the characteristics of existing 1:10000 Micro Station/J symbol library,analyzed the characteristics of each symbol expressed in production,to upgrade existing symbol library,expansion and modification;The paper expounds the definition of attribute database,descrubed the management mode of the attribute database;The paper expounds the symbolization control table of design thought,according to the point,line,face three kinds of target table structure is described.2?The research of 1:10000topographic map library software.The paper studied the establishing a database connection,graphics and database connection mechanism,the relationship between database and data attributes,realized the function of graphic database interoperability;The paper studied the graph line automatically generated,according to select element endpoint,interception of map operations,realized intersect by flexing elements;The paper studied the node elimination algorithm of contour line,provided the interactive query,positioning,navigation,delete,zoom function of little short contour line;The paper studied the Mapstation of real-time inspection and acceptance;The paper studied the elementsof space and attribute matching algorithm,realized the automatic connection under Mapstation.3?The research of 1:10000topographic map publishing software.The paper studied the two special symbolic control mode of attribute retrieval androad symbolization;Through the mask to control all kinds of features of the gland relationship to each other,the paper introduces the mask control rules;The paper expoundsed the principles of data layering and data gland in the map publishing,introduced three press control stages of DGN leveladjustment,DGN priority adjustment and DGN partition layout,made the control table;The paper write the review control table,connected the symbol library and inspection tools;The paper realized automatically generated of map decoration.