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About This Book

It covers the basics of QGIS, gives examples, and then guides you through a working project of mapping out an area to allow you to understand and master the basics of GIS and cartography. Shows where to get free data and how to check that data for validity.

While this book teaches GIS via the open source program of Quantum GIS, it is applicable to any GIS program.

In Detail

QGIS is the leading alternative to proprietary GIS software. Although QGIS is described as intuitive, it is also, by default, complex. Knowing which tools to use and how to apply them is essential to producing valuable deliverables on time.

Starting with a refresher on QGIS basics, this book will take you all the way through to creating your first custom QGIS plugin. By the end of the book, you will understand how to work with all the aspects of QGIS, and will be ready to use it for any type of GIS work. From the refresher, you will learn how to create, populate, and manage a spatial database and walk through styling GIS data, from creating custom symbols and color ramps to using blending modes. In the next section, you will discover how to prepare vector and raster data for processing and discover advanced data creation and editing techniques. The last third of the book covers more technical aspects of QGIS, including working with the Processing Toolbox, how to automate workflows with batch processing, and how to create graphical models. Finally, you will learn how to create and run Python data processing scripts and write your own QGIS plugin with pyqgis.

With this book you'll learn about:

• The QGIS interface
• Creating, editing, and analyzing vector data
• Working with raster (image) data
• Using plugins
• The QGIS Processing Toolbox
• Georeferencing
• Creating map and reports

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