QGIS plugin development with Python

Name: QGIS plugin development with Python
Rating: 4.5 (190 reviews)

Extend the functionality of QGIS with your own custom plugins

Created byMichael Miller

Last updated 11/2020

English

What you'll learn

How to create your own custom plugins for QGIS in order to automate your processes and extend the functionality of QGIS.

Course content

9 sections • 49 lectures • 10h 47m total length

Introduction8:18
Software components required for plugin development9:37
What exactly is a QGIS plugin?16:21
When do you need a plugin vs. a script3:56

Background and setup18:28
Building the GUI8:07
Understanding the plugins run method19:44
Validating the QGIS environment and preparing to create a new feature16:35
Validate the QGIS environment by listing map layers and confirming the raptor nest and buffer layers exist, then prepare to create a feature using dialog values and next nest id.
Adding a new point and buffer feature to the project13:45
Intro to version control with Git and GitHub14:14
Putting our plugin under version control12:45
Adding a results dialog to the plugin13:05
Populating the results dialog17:37

Diversity Calculator background11:07
Project setup14:53
Creating the GUI13:42
Flowcharting and final data structure8:11
Create a flowchart to transform polygons and points into a nested dictionary by category and species, counting observations for diversity indexes.
Looping through the polygons9:56
Looping through the points17:06
Calculating diversity indices18:05
Calculate biodiversity indices from category dictionaries using richness, Shannons index, and Simpson's index, and compute evenness to compare species distributions in a QGIS Python plugin.
Reporting the results16:30
Introduction to Sphinx19:12
Learn how Sphinx supports Python project documentation using reStructuredText, directives, and tables of contents, with GitHub and Read the Docs integration to auto-build and publish plugin docs.
Challenge solution8:35
Uploading to the official QGIS repository19:07

Introduction to processing plugins16:49
The QgsProcessingAlgorithm class10:57
The processAlgorithm method15:25
Building a processing plugin with plugin builder 311:03
Adding help info and customization input and output parameters12:54
Develop and customize a QGIS Python plugin by adding help information and configurable input and output parameters for a diversity processing algorithm.
Retrieving parameters and processing the algorithm13:29
Outputting an HTML file15:58
Challenge solution: Include detailed output.6:17

Requirements

This is not a course for beginners. You will need a thorough understanding of QGIS, Python, the PyQGIS python package, and GUI development with PyQt5

Description

This course will provide a thorough introduction to QGIS plugin development starting with the most basic plugins to advanced plugins, map tool plugins, processing plugins and more. We will touch on the entire ecosystem of tools used to create plugins including Qt Designer and the QGIS specific Qt Widgets, the Plugin Builder 3 plugin for creating the basic plugin template files, the First Aid plugin for debugging plugins within QGIS, the pb_tool command line tool for building, packaging, and deploying your plugin, the Sphinx system for documentation, Git and Github for verion control, collaboration, and issue tracking, and much more.

Who this course is for:

QGIS users who would like to extend the functionality of QGIS in order to automate their geospatial processes and eliminate repetitive drudgery.

QGIS plugin development with Python

What you'll learn

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Course content

Introduction4 lectures • 38min

Our first plugin5 lectures • 1hr 10min

Building a data entry plugin9 lectures • 2hr 14min

Creating a map tool plugin5 lectures • 56min

Using the QGIS specific widgets in Qt Designer5 lectures • 1hr 5min

Writing a plugin for public use11 lectures • 2hr 36min

Writing a processing plugin8 lectures • 1hr 43min

Where to go from here?1 lecture • 8min

How to get the most from my curses1 lecture • 16min

Requirements

Description

Who this course is for: