In the past, if you wanted to apply a wildly different style to more than one type of data in the same source, the only way to do this was to duplicate or subset a layer. With Rule Based Rendering, you now just have to create rules that are applied on-the-fly. This opens a huge door on cartographic possibilities with different features in the same layer not only having different colors but also different fill types, transparency, line type, and all manner of other customizations. Extending from categorized symbology, rules also allow for mixing and inheritance, allowing for intermediate categories or some shared properties and reducing the amount of work to create elegant symbology.
QGIS 2 Cookbook
By :
QGIS 2 Cookbook
By:
Overview of this book
QGIS is a user-friendly, cross-platform desktop geographic information system used to make maps and analyze spatial data. QGIS allows users to understand, question, interpret, and visualize spatial data in many ways that reveal relationships, patterns, and trends in the form of maps. This book is a collection of simple to advanced techniques that are needed in everyday geospatial work, and shows how to accomplish
them with QGIS. You will begin by understanding the different types of data management techniques, as well as how data exploration works. You will then learn how to perform classic vector and raster analysis with QGIS, apart from creating time-based visualizations. Finally, you will learn how to create interactive and visually appealing maps with custom cartography. By the end of this book, you will have all the necessary
knowledge to handle spatial data management, exploration, and visualization tasks in QGIS.
Table of Contents (19 chapters)
QGIS 2 Cookbook
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
Free Chapter
Data Input and Output
Data Management
Common Data Preprocessing Steps
Data Exploration
Classic Vector Analysis
Network Analysis
Raster Analysis I
Raster Analysis II
QGIS and the Web
Cartography Tips
Extending QGIS
Up and Coming
Index
Customer Reviews