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Python Geospatial Development - Second Edition by Erik Westra

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GIS data formats

A GIS data format specifies how geospatial data is stored in a file (or multiple files) on disk. The format describes the logical structure used to store geospatial data within the file(s).

Note

While we talk about storing information on disk, data formats can also be used to transmit geospatial information between computer systems. For example, a web service might provide map data on request, transmitting that data in a particular format.

A GIS data format will typically support:

  • Geospatial data describing geographical features.
  • Additional metadata describing this data, including the datum and projection used, the coordinate system and units that the data is in, the date this file was last updated, and so on.
  • Attributes providing additional ...

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