GLG Map Server
Emdedded Use on ARM Boards and Devices
List of Features
dynamic icons may be placed on top of the
images to visualize
positions of moving objects, such as airplanes, delivery vehicles,
patrol cars and other objects of interest.
The GLG Map Server can scale to any level of detail -- from images of the entire globe to street-level detail of a large metropolitan area, or a map of an airfield. Since the Map Server can handle both image and vector data, elaborately colored satellite earth images can be shown overlaid with crisp vector details on top. The map server automatically switches layers based on the selected zoom thresholds and the current zoom factor, displaying more detailed images as the user zooms in. A tile cache is used for faster rendering, reusing the tiles which have already been displayed.
The map server supports orthographic and rectangular projections. The orthographic projection may be used to render map image in the shape of the globe, while the rectangular projection renders latitude and longitude grid as straight lines. The map server also supports map rotation for displaying the map the way it is visible to a pilot or driver.
The map server provides numerous features to efficiently handle the ever-changing needs of a modern application. It includes such features as layering, alpha-blending and transparency, hierarchical tiling, tile caching, culling and decluttering for optimized performance, dynamic attribute thresholding, coordinate conversion and elevation data queries, and many other features.