Working with Massive Geodata Objects

The key to working with large data is to get rid of any unnecessary largeness. For raster objects, unnecessary largeness is removed by compression. Whether or not lossy compression is acceptable will depend on the intended use for the data. There are a variety of techniques used to remove unnecessary largeness from vector objects, which include database modifications, filtering, and thinning. With vector objects, this process is generally referred to as "cleanup."

Working with Massive Geodata Objects (file date: 19 Apr 12)

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