Smart Data Compression

From Wikipedia, the free encyclopedia

This article or section needs copy editing for grammar, style, cohesion, tone or spelling. You can assist by editing it now. A how-to guide is available. (October 2007)

This article or section needs to be wikified to meet Wikipedia's quality standards. Please help improve this article with relevant internal links. (October 2007)

This article or section is written like an advertisement. Please help rewrite this article from a neutral point of view. Mark blatant advertising which would require a fundamental rewrite in order to become encyclopedic for speedy deletion, using {{db-spam}}. (December 2007)

Smart Data Compression is a technique to compress GIS dataset, store all types of feature data and attribute information together as a core data structure, SDC format is used in ArcGIS streetmap, routeServer, routeMap IMS, business analyst, businessMap, ArcMobile SDK for its good compression ratio.

Compression ratios range from 8x to 20x depending on the data source and structure. SDC data is optimized for rapid map display, accurate routing, and high-performance geocoding.

Both Tele Atlas and NAVTEQ provide North American commercial street datasets in SDC format.