Design And Implementation Of Domestic Environment Mobile Geographic Information Platform

Moreover,the rise of domestic independent operating system and rapid development make various types of domestic terminal complex,in order to ensure network security and information security,the GIS system and independent control of computing devices,more and more important,the combination of requirements can be found in a variety of terminal equipment on whether online or offline mode can provide the basis of geographic information services.Various operating systems and CPU architectures of mobile terminals in domestic environments are different and the development environment provided by various mobile terminals is only applicable to their own systems.Therefore,the characteristics of various mobile terminals need to be considered in the development of mobile terminals in domestic environments.Based on a variety of domestic mobile terminal environments,this paper develops the geographic information platform.The main research and implementation contents are as follows:1)front-end Map View framework and message middleware:using technology such as the front-end HTML 5 MapiView framework,and the underlying data flow through the middleware technology and front end,all process uses the native Socket communication mechanism,so as to make the front running with high efficiency,stable performance,but also because of its event-driven asynchronous I/O model,but also make full use of the limited CPU resources.2)Underlying cross-platform data access engine technology:A set of crossplatform data access engine based on file system is researched and implemented to adapt to various CPU architectures under the mobile terminals of different domestic environments,so as to ensure that no deviation will occur in the reading of map data.3)underlying cross-platform high-performance graphics engine technology:through research and implementation of a set of graphics engine that does not rely on the graphics rendering interface provided by the operating system,but adopts pure C++language to achieve in the way of pure memory,making the graphics rendering effect basically consistent under different domestic mobile environments.Through the adaptation of various domestic environment mobile terminals mentioned above and the testing of various functions of the geographic information platform,the test results show that the geographic information platform implemented in this paper is successfully adapted and runs stably on all kinds of domestic environment mobile terminals with good performance.