Book Image

Learning QGIS - Third Edition

By : Anita Graser
Book Image

Learning QGIS - Third Edition

By: Anita Graser

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 (13 chapters)
Learning QGIS Third Edition
About the Author
About the Reviewer

Adding data to spatial databases

In Chapter 2, Viewing Spatial Data, we saw how to view data from spatial databases. Of course, we also want to be able to add data to our databases. This is where the DB Manager plugin comes in handy. DB Manager is installed by default, and you can find it in the Database menu (if DB Manager is not visible in the Database menu, you might need to activate it in Plugin Manager).

The Tree panel on the left-hand side of the DB Manager dialog lists all available database connections that have been configured so far. Since we have added a connection to the test-2.3.sqlite SpatiaLite database in Chapter 2, Viewing Spatial Data, this connection is listed in DB Manager, as shown in the next screenshot.

To add new data to this database, we just need to select the connection from the list of available connections and then go to Table | Import layer/file. This will open the Import vector layer dialog, where we can configure the import settings, such as the name of the...