Some scanners also use software to convert raster data to vector data.
A United States federal standard designed to support the transfer of different types of geographic and cartographic spatial data. This standard specifies a structure and content for spatially referenced data in order to facilitate data transfer between dissimilar spatial database systems. TVP addresses a wide variety of vector data types, models, and structures, as well as associated attribute data. ArcView's format for storing the location, shape, and attribute information of geographic features. Snapping is commonly used in the digitizing process to prevent dangles, or incomplete polygons.