Book Image

Learning Geospatial Analysis with Python

By : Joel Lawhead
4 (1)
Book Image

Learning Geospatial Analysis with Python

4 (1)
By: Joel Lawhead

Overview of this book

Geospatial analysis is used in almost every field you can think of from medicine, to defense, to farming. It is an approach to use statistical analysis and other informational engineering to data which has a geographical or geospatial aspect. And this typically involves applications capable of geospatial display and processing to get a compiled and useful data. "Learning Geospatial Analysis with Python" uses the expressive and powerful Python programming language to guide you through geographic information systems, remote sensing, topography, and more. It explains how to use a framework in order to approach Geospatial analysis effectively, but on your own terms. "Learning Geospatial Analysis with Python" starts with a background of the field, a survey of the techniques and technology used, and then splits the field into its component speciality areas: GIS, remote sensing, elevation data, advanced modelling, and real-time data. This book will teach you everything there is to know, from using a particular software package or API to using generic algorithms that can be applied to Geospatial analysis. This book focuses on pure Python whenever possible to minimize compiling platform-dependent binaries, so that you don't become bogged down in just getting ready to do analysis. "Learning Geospatial Analysis with Python" will round out your technical library with handy recipes and a good understanding of a field that supplements many a modern day human endeavors.
Table of Contents (17 chapters)
Learning Geospatial Analysis with Python
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Working with GPX-Reporter.py


The name of our program is GPX-Reporter.py. If you remember from the section Tag and markup-based formats, in Chapter 2, Geospatial Data, the GPX format is the most common way to store GPS route information. Nearly every program and device relying on GPS data can convert to and from GPX.

For this example you can download a sample GPX file from here:

https://geospatialpython.googlecode.com/files/route.gpx

You will also need to install a few Python libraries from PyPi. If you've worked through the rest of this book you'll have most of them already:

  • PIL: the Python Imaging Library

  • Numpy: multi-dimensional, array-processing library, which uses linear algebra

  • Srtm.py: a utility for working with near-global elevation data

  • Pygooglechart: A Python wrapper for the excellent Google Chart API

  • Fpdf: a simple, pure-python PDF writer

Simply use easy_install or pip to install these tools.

You will also need to register for a free WeatherUnderground.com developer account. This...