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QGIS Documentation
3.4
A Gentle Introduction to GIS
Training Manual
User Guide/Manual
Preamble
Foreword
Conventions
Features
What’s new in QGIS 3.4
Getting Started
Working with Project Files
QGIS GUI
QGIS Configuration
Working with Projections
General Tools
Managing Data Source
Working with Vector Data
Working with Raster Data
Working with Mesh Data
Laying out the maps
Working with OGC Data
Working with GPS Data
Authentication System
GRASS GIS Integration
QGIS processing framework
Introduction
Configuring the Processing Framework
The Toolbox
The history manager
The graphical modeler
The batch processing interface
Using processing algorithms from the console
Writing new Processing algorithms as Python scripts
Configuring external applications
Processing providers and algorithms
Plugins
Help and Support
Contributors
Appendices
Literature and Web References
User Guide/Manual PDF's
PyQGIS Cookbook
Developers Guide
Documentation Guidelines
QGIS Documentation
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QGIS processing framework
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Introduction
Configuring the Processing Framework
The Toolbox
The algorithm dialog
Data objects generated by algorithms
The history manager
The processing history
The processing log
The graphical modeler
Definition of inputs
Definition of the workflow
Saving and loading models
Editing a model
Editing model help files and meta-information
Exporting a model as a Python script
About available algorithms
The batch processing interface
Introduction
The parameters table
Filling the parameters table
Executing the batch process
Using processing algorithms from the console
Calling algorithms from the Python console
Creating scripts and running them from the toolbox
Pre- and post-execution script hooks
Writing new Processing algorithms as Python scripts
Extending QgsProcessingAlgorithm
Input and output types for Processing Algorithms
Handing algorithm output
Communicating with the user
Documenting your scripts
Flags
Best practices for writing script algorithms
Configuring external applications
A note for Windows users
A note on file formats
A note on vector layer selections
SAGA
R scripts
R libraries
GRASS
LAStools
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