O'Reilly logo

Python Geospatial Development - Second Edition by Erik Westra

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

Working with GIS data manually

Let's take a brief look at the process of working with GIS data manually. Before we can begin, there are two things you need to do:

  • Obtain some GIS data
  • Install the GDAL Python library so that you can read the necessary data files

Let's use the US Census Bureau's website to download a set of vector maps for the various US states. The main site for obtaining GIS data from the US Census Bureau can be found at:

http://www.census.gov/geo/www/tiger

To make things simpler though, let's bypass the website and directly download the file we need from the following link:

http://www2.census.gov/geo/tiger/TIGER2012/STATE/tl_2012_us_state.zip

The resulting file, tl_2009_us_state.zip, should be a ZIP-format archive. After uncompressing ...

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