O'Reilly logo

Python Geospatial Analysis Cookbook by Michael Diener

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Executing a PostGIS ST_Buffer analysis query and exporting it to GeoJSON

Let's start by executing our first spatial analysis query from Python against our already running PostgreSQL and PostGIS database. The goal is to generate a 100 m buffer around all schools and export the new buffer polygon to GeoJSON, including the name of a school. The end result will be shown on this map, available (https://github.com/mdiener21/python-geospatial-analysis-cookbook/blob/master/ch04/geodata/out_buff_100m.geojson) on GitHub.

Tip

Quick visualizations of GeoJSON data using GitHub is a fast and simple way to create a web map without coding a single line. Note that the data is then free for everyone else to download if you are using a public and free GitHub account. ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required