Book Image

Mastering Geospatial Analysis with Python

By : Silas Toms, Paul Crickard, Eric van Rees
Book Image

Mastering Geospatial Analysis with Python

By: Silas Toms, Paul Crickard, Eric van Rees

Overview of this book

Python comes with a host of open source libraries and tools that help you work on professional geoprocessing tasks without investing in expensive tools. This book will introduce Python developers, both new and experienced, to a variety of new code libraries that have been developed to perform geospatial analysis, statistical analysis, and data management. This book will use examples and code snippets that will help explain how Python 3 differs from Python 2, and how these new code libraries can be used to solve age-old problems in geospatial analysis. You will begin by understanding what geoprocessing is and explore the tools and libraries that Python 3 offers. You will then learn to use Python code libraries to read and write geospatial data. You will then learn to perform geospatial queries within databases and learn PyQGIS to automate analysis within the QGIS mapping suite. Moving forward, you will explore the newly released ArcGIS API for Python and ArcGIS Online to perform geospatial analysis and create ArcGIS Online web maps. Further, you will deep dive into Python Geospatial web frameworks and learn to create a geospatial REST API.
Table of Contents (23 chapters)
Title Page
Copyright and Credits
Packt Upsell
Geoprocessing with Geodatabases

A crime dashboard

To build an interactive crime dashboard, you will need to collect data to build a database. Then, you will query the data and add widgets to allow users to modify the queries without needing to code. Lastly, you will graph and map the query results.

Building a crime database

To build the components for a crime dashboard, we will use the City of Albuquerque's open data. Albuquerque has datasets for crime incidents, as well as area commands and beats. By combining the areas with incidents, you will be able to report on two geographic areas. You could then extend the analysis using neighborhood associations or any other boundary—Census blocks, groups, or tracts, and get demographic information as well. 


You can find links to the data on the main open data site located at: Scroll to the bottom of the page and look for the Safety Data Sets heading. 

Creating the tables

We will need to create three tables to hold the crime data. We need a table for...