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3维空间数据具有海量、复杂性特点,一些数据的应用范围有一定特殊性,文章面向海量数据的工程化应用分别设计了与其相适应的安全访问措施,针对局域网下的多用户模式,将3维空间数据库的空间数据管理和非空间数据管理逻辑分离,采用角色进行权限设置,控制用户所能访问的3维空间数据库;针对单用户模式,基于现代密码体制设计了工程文件的加解密功能;实现了对海量空间数据的高效安全访问控制。 更多还原

【Abstract】 Three-dimensional spatial data has massive,complex characteristics,the application of some data has a certain particularity,in this paper facing engineering application of mass data,security access measures are designed respectively to fit different modes.For the multi-user mode under lan,the management of spatial data and non-spatial data of three-dimensional database is separated logically,the rights of user are configured by role,the three-dimensional database which user can access is control...