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  • Book Overview & Buying Learning QGIS, Third Edition
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Learning QGIS, Third Edition

Learning QGIS, Third Edition - Third Edition

By : Anita Graser
4.3 (8)
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Learning QGIS, Third Edition

Learning QGIS, Third Edition

4.3 (8)
By: Anita Graser
Buy this Book

Overview of this book

QGIS is a user-friendly open source geographic information system (GIS) that runs on Linux, Unix, Mac OS X, and Windows. The popularity of open source geographic information systems and QGIS in particular has been growing rapidly over the last few years. Learning QGIS Third Edition is a practical, hands-on guide updated for QGIS 2.14 that provides you with clear, step-by-step exercises to help you apply your GIS knowledge to QGIS. Through clear, practical exercises, this book will introduce you to working with QGIS quickly and painlessly. This book takes you from installing and configuring QGIS to handling spatial data to creating great maps. You will learn how to load and visualize existing spatial data and create data from scratch. You will get to know important plugins, perform common geoprocessing and spatial analysis tasks and automate them with Processing. We will cover how to achieve great cartographic output and print maps. Finally, you will learn how to extend QGIS using Python and even create your own plugin.
Table of Contents (8 chapters)
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Preface
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Preface
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What this book covers
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What you need for this book
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Who this book is for
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Conventions
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Reader feedback
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Customer support
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1
1. Getting Started with QGIS
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1. Getting Started with QGIS
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Installing QGIS
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Running QGIS for the first time
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Introducing the QGIS user interface
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Finding help and reporting issues
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Summary
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2. Viewing Spatial Data
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2. Viewing Spatial Data
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Loading vector data from files
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Dealing with coordinate reference systems
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Loading raster files
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Loading data from databases
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Loading data from OGC web services
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Styling raster layers
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Styling vector layers
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Loading background maps
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Dealing with project files
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Summary
3
3. Data Creation and Editing
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3. Data Creation and Editing
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Creating new vector layers
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Working with feature selection tools
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Editing vector geometries
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Using measuring tools
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Editing attributes
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Reprojecting and converting vector and raster data
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Joining tabular data
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Using temporary scratch layers
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Checking for topological errors and fixing them
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Adding data to spatial databases
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Summary
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4. Spatial Analysis
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4. Spatial Analysis
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Analyzing raster data
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Combining raster and vector data
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Vector and raster analysis with Processing
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Leveraging the power of spatial databases
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Summary
5
5. Creating Great Maps
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5. Creating Great Maps
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Advanced vector styling
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Labeling
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Designing print maps
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Presenting your maps online
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Summary
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6. Extending QGIS with Python
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6. Extending QGIS with Python
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Adding functionality using actions
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Getting to know the Python Console
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Creating custom geoprocessing scripts using Python
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Developing your first plugin
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Summary
7
Index
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Index

Designing print maps

In QGIS, print maps are designed in the print composer. A QGIS project can contain multiple composers, so it makes sense to pick descriptive names. Composers are saved automatically whenever we save the project. To see a list of all the compositions available in a project, go to Project | Composer Manager.

We can open a new composer by going to Project | New Print Composer or using Ctrl + P. The composer window consists of the following:

  • A preview area for the map composition displaying a blank page when a new composer is created

  • Panels for configuring Composition, Item properties, and Atlas generation, as well as a Command history panel for quick undo and redo actions

  • Toolbars to manage, save, and export compositions; navigate in the preview area; as well as add and arrange different composer items

Once you have designed your print map the way you want it, you can save the template to a composer template .qpt file by going to Composer | Save as template and reuse it in other...

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Learning QGIS, Third Edition
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