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You're reading from Mastering Geospatial Analysis with Python Explore GIS processing and learn to work with GeoDjango, CARTOframes and MapboxGL-Jupyter

Product type Paperback

Published in Apr 2018

Publisher Packt

ISBN-13 9781788293334

Length 440 pages

Edition 1st Edition

Languages

Python

Tools

Anaconda

Concepts

Geospatial Analysis

Authors (3):

Silas Toms

Paul Crickard

Eric van Rees

View More author details

Table of Contents (18) Chapters

Preface

1. Package Installation and Management

2. Introduction to Geospatial Code Libraries FREE CHAPTER

3. Introduction to Geospatial Databases

4. Data Types, Storage, and Conversion

5. Vector Data Analysis

6. Raster Data Processing

7. Geoprocessing with Geodatabases

8. Automating QGIS Analysis

9. ArcGIS API for Python and ArcGIS Online

10. Geoprocessing with a GPU Database

11. Flask and GeoAlchemy2

12. GeoDjango

13. Geospatial REST API

14. Cloud Geodatabase Analysis and Visualization

15. Automating Cloud Cartography

16. Python Geoprocessing with Hadoop

17. Other Books You May Enjoy

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Writing custom toolboxes

Writing toolboxes will allow you to automate several tasks and make that code available to users as a GUI, or to other developers as an algorithm that can be executed using processing. In this section, you will learn how to create a toolbox and call it from processing.

In this chapter, you have learned how to load data from a file and from a PostGIS database. In this example, you will learn how to bring data in to QGIS from the SeeClickFix Application Program Interface (API).

Note

SeeClickFix is a 311 reporting system that is used by many cities in the United States. It contains geospatial data and has a very well documented, and user-friendly API.

To create a new script, open the processing toolbox in QGIS. This will open an editor window. You will write your code in this window and save it using the save icon. The file name will become a toolbox under Tools|User scripts|File name. Save the file and name it SeeClickFix.

Now that you have an empty toolbox, we can start...