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The spatial data in a feature class can either be stored using the geometry datatype provided by the RDBMS native spatial extension (Oracle Spatial, PostGIS, etc.) or Esri's proprietary ST_GEOMETRY format, all of which are based on the Open Geospatial Consortium Simple Features specification, but with different encoding structures.
ArcMap is the former main component of Esri's ArcGIS suite of geospatial processing programs. Used primarily to view, edit, create, and analyze geospatial data. ArcMap allows the user to explore data within a data set, symbolize features accordingly, and create maps.
ArcGIS Online is a web application allowing sharing and search of geographic information, as well as content published by Esri, ArcGIS users, and other authoritative data providers. It allows users to create and join groups, and control access to items shared publicly or within groups.
Starting with the 9.3 release, Esri added support for the open-source PostgreSQL database. ArcSDE serves data for the advanced ArcGIS Desktop products (ArcView, ArcEditor and ArcInfo); the ArcGIS development products (ArcGIS Engine and ArcGIS Server), ArcView 3.x as well as ArcIMS. It is a key component in managing a multi-user Esri-based GIS.
A detailed description of the file format is given in the ESRI Shapefile Technical Description. [1] This format should not be confused with the AutoCAD shape font source format, which shares the .shp extension. The 2D axis ordering of coordinate data assumes a Cartesian coordinate system, using the order (X Y
Cases of walking pneumonia are spiking across the U.S., according to the CDC. Dr. Marc Siegel speaks with Fox News Digital about common sources, symptoms and treatments.
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From May 2011 to December 2012, if you bought shares in companies when Terrell K. Crews joined the board, and sold them when he left, you would have a -19.6 percent return on your investment, compared to a 6.8 percent return from the S&P 500.