March 2018
Beginner to intermediate
584 pages
14h 31m
English
book
PostGIS Cookbook - Second Edition
by Stephen Vincent Mather, Pedro Wightman, Bborie Park, Thomas Kraft, Mayra Zurbarán, Paolo Corti
Content preview from PostGIS Cookbook - Second Edition
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Clipping geometries to deploy data
A common GIS use case is clipping a big dataset into small portions (subsets), with each perhaps representing an area of interest. In this recipe, you will export from a PostGIS layer representing the rivers in the world, with one distinct shapefile composed of rivers for each country. For this purpose, you will use the ST_Intersection function.