Component-Based Virtual Globe Visualization Engine Design

By analysis to the strengths and weakness of the existing virtual globe visualization engines, a component-based solution of virtual globe visualization engine is proposed in this paper, which includes two parts, the support library and the functional components. The support library provides essential support services for the normal operation of the engine. The functional components provide the realization of various types of core functions, including network, data buffering, local file storage and management, spatial data processing, tessellation of the globe, the user response, such as graphics rendering. This paper gives a specific design of the virtual globe visualization engine, and discusses its operating mechanism, as well as its applications in a real project.