enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Topologically Integrated Geographic Encoding and Referencing

    en.wikipedia.org/wiki/Topologically_Integrated...

    TIGER data published through February 2007 (2006 Second Edition) were in a custom text-based format formally known as TIGER/Line files. In 2008, data in shapefile format was published. Please note that shapefiles are not topological, therefore may create slivers when comparing TIGER/Line boundaries.

  3. List of GIS data sources - Wikipedia

    en.wikipedia.org/wiki/List_of_GIS_data_sources

    U.S. Gazetteer, TIGER/Line shapefiles, census data. National Historical Geographic Information System: NHGIS provides free of charge, aggregate census data and GIS-compatible boundary files for the United States between 1790 and 2012. Atlas of Historical County Boundaries Project (AHCBP)

  4. GIS file format - Wikipedia

    en.wikipedia.org/wiki/GIS_file_format

    Digital line graph (DLG) – a USGS format for vector data; TIGER – Topologically Integrated Geographic Encoding and Referencing; Vector Product Format (VPF) – National Geospatial-Intelligence Agency (NGA)'s format of vectored data for large geographic databases; Spatial Data File – Autodesk's high-performance geodatabase format, native ...

  5. Libre Map Project - Wikipedia

    en.wikipedia.org/wiki/Libre_Map_Project

    Additional data made available through the project includes SVG boundary files for every US state, Topologically Integrated Geographic Encoding and Referencing (Tiger)/Line 2003 vector map data, and the USGS GeoNames database. [4]

  6. Shapefile - Wikipedia

    en.wikipedia.org/wiki/Shapefile

    The shapefile format is a geospatial vector data format for geographic information system (GIS) software. It is developed and regulated by Esri as a mostly open specification for data interoperability among Esri and other GIS software products . [ 1 ]

  7. AOL Mail

    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  8. Geodatabase (Esri) - Wikipedia

    en.wikipedia.org/wiki/Geodatabase_(Esri)

    The origin of the geodatabase was in the mid-1990s during the emergence of the first spatial databases.One early approach to integrating relational databases and GIS was the use of server middleware, a third-party program that stores the spatial data in database tables in a custom format, and translates it dynamically into a logical model that can be understood by the client software.

  9. Discover the best free online games at AOL.com - Play board, card, casino, puzzle and many more online games while chatting with others in real-time.