PostGIS - Spatial and Geographic objects for PostgreSQL

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PostGIS is a spatial database extender for PostgreSQL object-relational database. It adds support for geographic objects allowing location queries to be run in SQL. PostGIS adds extra types (geometry, geography, raster and others) to the PostgreSQL database. It also adds functions, operators, and index enhancements that apply to these spatial types.

It supports packaged command-line for importing raster data from many standard formats: GeoTiff, NetCDF, PNG, JPG to name a few, It also supports processing and analytic functions for both vector and raster data for splicing, dicing, morphing, reclassifying, and collecting/unioning with the power of SQL.



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