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Mastering  QGIS

You're reading from   Mastering QGIS Go beyond the basics and unleash the full power of QGIS with practical, step-by-step examples

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Product type Paperback
Published in Sep 2016
Publisher Packt
ISBN-13 9781786460370
Length 486 pages
Edition 2nd Edition
Tools
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Authors (5):
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John Van Hoesen, GISP John Van Hoesen, GISP
Author Profile Icon John Van Hoesen, GISP
John Van Hoesen, GISP
Kurt Menke, GISP Kurt Menke, GISP
Author Profile Icon Kurt Menke, GISP
Kurt Menke, GISP
Paolo Corti Paolo Corti
Author Profile Icon Paolo Corti
Paolo Corti
Richard Smith Jr., GISP Richard Smith Jr., GISP
Author Profile Icon Richard Smith Jr., GISP
Richard Smith Jr., GISP
Luigi Pirelli Luigi Pirelli
Author Profile Icon Luigi Pirelli
Luigi Pirelli
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Toc

Table of Contents (13) Chapters Close

Preface 1. A Refreshing Look at QGIS FREE CHAPTER 2. Creating Spatial Databases 3. Styling Raster and Vector Data 4. Preparing Vector Data for Processing 5. Preparing Raster Data for Processing 6. Advanced Data Creation and Editing 7. Advanced Data Visualization 8. The Processing Toolbox 9. Automating Workflows with the Graphical Modeler 10. Creating QGIS Plugins with PyQGIS and Problem Solving 11. PyQGIS Scripting Index

Creating spatial indices


Large data layers with hundreds or thousands of features will render much more quickly with a spatial index. A spatial index is a separate file ending with a .qix extension. To create a spatial index, choose the Create Spatial Index tool by navigating to Vector | Data Management Tools. Select the loaded canvas layers or check the Select files from disk option and navigate to a folder and select layers on disk. Click on OK to create the spatial indexes:

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