基于GNet8.1的微波规划GIS设计与核心算法研究

er's application needs. This tool requires accurate geographic data, on-site geographic factors, and other GIS methods to achieve its related business in the context of network planning and design. Therefore, this project is a GIS support project for the tool. This paper analyzes the overall requirements of the project, introduces the objectives, context definition, constraints and principles involved, the project development environment, the interface list to be provided by the project, and the milestone completion time of the project. A four-layer project architecture is designed for the entire project, including the framework layer, common library, application layer, and components, and a decomposition description is given for the architecture of the four layers. This paper establishes that the entire project is based on the GNet8.1 platform developed by the laboratory itself. The project is divided into components based on the functional implementation, and the distribution of personnel is roughly determined based on the actual manpower and workload. The functional implementation of the project covered in this paper mainly includes raster data parsing, map coordinate conversion, generation of terrain texture maps, and retrieval of DEM data. This paper also provides various project optimizations, such as raster pyramids, data buffering, and pre-made color tables. Finally, this paper demonstrates the successful completion of the project and the satisfaction of the partner's requirements through overall quality evaluation, quality evaluation in various dimensions, and defect analysis. Keywords: GIS design, raster parsing, coordinate conversion, terrain maps, DEM retrieval.