大规模国土调查数据的调度和渲染研究

Research on Scheduling and Rendering of Large Scale Land Survey Data

阐述了制图数据与GIS数据之间的区别与关联,以湖北省第三次国土调查数据为样本,设计了适用于移动环境下的大规模国土调查数据调度方案,以.vtpk和.geodatabase为数据存储格式,采用异步加载的方式进行实验。实验表明该方法能实现移动环境下大规模国土调查数据的调度和快速渲染,并已应用于以服务自然资源管理为主的湖北省国土调查移动数据管理系统中,取得了较好的应用效果。

In this paper,we illustrated the differences and correlations between cartographic data and GIS data,and taking the third national land survey data of Hubei Province for sample,designed a scheduling scheme for large scale land survey data in mobile environment.And then,taking.vtpk and.geodatabase as data storage formats,we used asynchronous loading method to conduct experiments.The experimental result shows that this method can realize the scheduling and fast rendering of large scale land survey data in mobile environment.The method has been applied to the land survey data management mobile system of Hubei Province,which mainly serves the management of natural resources,and has achieved good application results.