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

Hadoop basics

In this section, you will launch your Hadoop image and learn how to connect using ssh and Ambari. You will also move files and perform a basic Hive query. Once you understand how to interact with the framework, the next section will show you how to use a spatial query.

First, from the terminal, launch the Hortonworks Sandbox using the provided Bash script. The following command will show you how:

sudo sh

The previous command executes the script you downloaded with the sandbox. Again, it used sudo to run as root. Depending on your machine, it may take some time to completely load and start all the services. When it is done, your terminal should look like it does in the following screenshot:

Connecting via Secure Shell

Now that the sandbox is running, you can connect using Secure Shell (SSH). The secure shell allows you to log in remotely to another machine. Open a new terminal and enter the following command:

ssh [email protected] -p2222

The previous command uses...