Building mapping applications with QGIS create your own sophisticated applications to analyze and display geospatial information using QGIS and Python

Cover
Copyright
Credits
About the Author
About the Reviewers
www.PacktPub.com
Table of Contents
Preface
Chapter 1: Getting Started with QGIS
	About QGIS
		Installing and running QGIS
		Understanding QGIS concepts
	Linking QGIS and Python
		Exploring the Python Console
		Examining a Python plugin
		Writing an external application
	Summary
Chapter 2: The QGIS Python Console
	Using the console
	Working with geospatial data in the console
	Scripting the QGIS user interface
		The status bar
		The message bar
		Progress indicators
		QGIS logging
		Custom dialogs and windows
	Summary
Chapter 3: Learning the QGIS Python API
	About the QGIS Python APIs
	Deciphering the C++ documentation
	Organization of the QGIS Python libraries
		The qgis.core package
			Maps and map layers
			Coordinate reference systems
			Vector layers
			Raster layers
			Other useful qgis.core classes
		The qgis.gui package
			The QgisInterface class
			The QgsMapCanvas class
			The QgsMapCanvasItem class
			The QgsMapTool class
			Other useful qgis.gui classes
	Using the PyQGIS library
		Analyzing raster data
		Manipulating vector data and saving it to a shapefile
		Using different symbols for different features within a map
		Calculating the distance between two user-defined points
	Summary
Chapter 4: Creating QGIS Plugins
	Getting ready
	Understanding the QGIS plugin architecture
	Creating a simple plugin
	The plugin development process
		Using the Plugin Builder
		Automating the build process
		Plugin help files
		Unit testing
		Distributing your plugin
	Writing a useful plugin
	Plugin possibilities and limitations
	Summary
Chapter 5: Using QGIS in an External Application
	Introducing Lex
	Getting the data
	Designing the application
	Creating the application\'s framework
	Adding the user interface
	Connecting the actions
	Creating the map canvas
	Labeling the points
	Filtering the landmarks
	Implementing the zoom tool
	Implementing the pan tool
	Implementing the explore mode
	Further improvements and enhancements
	Summary
Chapter 6: Mastering the QGIS Python API
	Working with symbol layers
	Combining symbol layers
	Implementing symbol layers in Python
	Implementing renderers in Python
	Working with custom map layers
	Creating custom map canvas items
	Using memory-based layers
	Summary
Chapter 7: Selecting and Editing Features in a PyQGIS Application
	Working with selections
	Using the layer editing mode
	Adding Points
	Editing Points
	Deleting Points and other features
	Adding lines and polygons
	Editing lines and polygons
	Summary
Chapter 8: Building a Complete Mapping Application using Python and QGIS
	Introducing ForestTrails
	Designing the ForestTrails application
	Creating the application
		Laying out the application
		Defining the toolbar icons
		The constants.py module
		The forestTrails.py module
		The mapTools.py module
		The ui_mainWindow.py module
		Running the application
	Obtaining the basemap
	Defining the map layers
	Defining the map renderers
	The Pan Tool
	Implementing the track editing mode
	Summary
Chapter 9: Completing the ForestTrails Application
	The Add Track map tool
	Testing the application
	Vertex snapping
	The Edit Track map tool
	The Delete Track map tool
	The Get Info map tool
	The Set Start Point and Set End Point actions
	The Find Shortest Path action
	Adjusting the toolbar actions
	Suggested improvements
	Summary
Index