Desktop-Based Mapping and Visualization Tools

Desktop-based mapping and visualization tools can secure user data and make full use of client-side computing resources. They also offer unique advantages in data storage and function distribution by leveraging the client/server (C/S) mode. In this chapter, we introduce a group of widely used and reputable desktop-based mapping and visualization tools, covering both 2D and 3D visualization categories. In terms of 2D mapping and visualization, three typical tools are introduced, i.e., QGIS, uDig, and SAGA GIS. Meanwhile, three 3D visualization tools with different functions and focuses: Google Earth, WorldWind, and WorldWide Telescope (WWT) are introduced. In the Desktop Application Lab section, we provide two exercises and two questions. From there, readers can learn how to use these tools to solve their own problems.