QGIS 2 Cookbook

Reporting bugs

Hunting for bugs

GRASS Topology tools

The Topology Checker plugin

The PostGIS Topology Editor plugin

Using Geopackages

Opening File Geodatabases with the OpenFileGDB driver

Preparing LiDAR data

Introduction

Chapter 12. Up and Coming

Using external tools

Writing QGIS plugins

Writing Processing algorithms

Using the Python console

Adding plugins with Python dependencies

Using the QspatiaLite plugin

Working offline

Working near the dateline

Defining custom projections

Introduction

Chapter 11. Extending QGIS

Creating a map series using Atlas

Making useful graticules in printed maps

Making pretty graticules in any projection

Creating custom SVG graphics

Configuring data-defined labels

Saving and loading styles

Understanding the feature and layer blending modes

Handling transparencies

Using Rule Based Rendering

Introduction

Chapter 10. Cartography Tips

Managing GeoServer from QGIS

Hooking up web clients

Scale-dependent rendering

Serving web maps with the QGIS server

Using GDAL

Using WCS

Using WMS and WMS Tiles

Searching CSW

Using WFS and WFS-T

Using web services

Introduction

Chapter 9. QGIS and the Web

Performing supervised classification of raster layers

Modifying and reclassifying values in raster layers

Visualizing multispectral layers

Sampling a raster layer

Setting extents with masks

Handling null values

Calculating NDVI

Introduction

Chapter 8. Raster Analysis II

Automating analysis tasks using the graphical modeler

Calculating a topographic index

Analyzing hydrology

Calculating a hillshade layer

Calculating a slope

Preparing elevation data

Using the raster calculator

Introduction

Chapter 7. Raster Analysis I

Getting network data from the OSM

Using the pgRoutingLayer plugin for convenience

Visualizing the pgRouting results in QGIS

Creating a routing network for pgRouting

Matching points to the nearest line

Automating multiple route computation using batch processing

Routing point sequences

Calculating the shortest paths with the QGIS network analysis library

Routing with one-way streets in the Road graph plugin

Calculating the shortest paths using the Road graph plugin

Creating a simple routing network

Introduction

Chapter 6. Network Analysis

Estimating values based on samples

Estimating density heatmaps

Calculating regional statistics

Dasymetric mapping

Selecting optimum sites

Introduction

Chapter 5. Classic Vector Analysis

Viewing geotagged photos

Loading BaseMaps with the OpenLayers plugin

Loading BaseMaps with the QuickMapServices plugin

Designing time-dependent styles

Creating animations using Time Manager

Exploring spatiotemporal vector data using Time Manager

Exploring numeric value distribution in a column

Listing unique values in a column

Introduction

Chapter 4. Data Exploration

Geotagging photos

Building DateTime strings

Converting vectors to rasters

Converting rasters to vectors

Extracting vectors

Clipping vectors

Cropping rasters

Converting points to lines to polygons and back – PostGIS

Converting points to lines to polygons and back – SpatiaLite

Converting points to lines to polygons and back – QGIS

Introduction

Chapter 3. Common Data Preprocessing Steps

Building virtual rasters (catalogs)

Creating raster overviews (pyramids)

Georeferencing vector layers

Georeferencing rasters

Creating spatial indexes

Creating views in PostGIS

Creating views in SpatiaLite

Joining tables in databases

Configuring relations

Cleaning up the attribute table

Joining layer data

Introduction

Chapter 2. Data Management

Loading vector layers into PostGIS

Loading vector layers into SpatiaLite

Batch reprojection

Batch format conversion

Reprojecting a layer

Saving a raster layer

Saving a vector layer

Opening a NetCDF file

Importing DXF/DWG files

Importing KML/KMZ files

Importing data from text files

Describing data sources

Finding geospatial data on your computer

Introduction

Chapter 1. Data Input and Output

Customer support

Reader feedback

Conventions

Sections

Who this book is for

What you need for this book

What this book covers

Preface

eBooks discount offers and more

www.PacktPub.com

About the Reviewers

About the Authors

Credits

QGIS 2 Cookbook

coverpage

coverpage

QGIS 2 Cookbook

Credits

About the Authors

About the Reviewers

www.PacktPub.com

eBooks discount offers and more

Preface

What this book covers

What you need for this book

Who this book is for

Sections

Conventions

Reader feedback

Customer support

Chapter 1. Data Input and Output

Introduction

Finding geospatial data on your computer

Describing data sources

Importing data from text files

Importing KML/KMZ files

Importing DXF/DWG files

Opening a NetCDF file

Saving a vector layer

Saving a raster layer

Reprojecting a layer

Batch format conversion

Batch reprojection

Loading vector layers into SpatiaLite

Loading vector layers into PostGIS

Chapter 2. Data Management

Introduction

Joining layer data

Cleaning up the attribute table

Configuring relations

Joining tables in databases

Creating views in SpatiaLite

Creating views in PostGIS

Creating spatial indexes

Georeferencing rasters

Georeferencing vector layers

Creating raster overviews (pyramids)

Building virtual rasters (catalogs)

Chapter 3. Common Data Preprocessing Steps

Introduction

Converting points to lines to polygons and back – QGIS

Converting points to lines to polygons and back – SpatiaLite

Converting points to lines to polygons and back – PostGIS

Cropping rasters

Clipping vectors

Extracting vectors

Converting rasters to vectors

Converting vectors to rasters

Building DateTime strings

Geotagging photos

Chapter 4. Data Exploration

Introduction

Listing unique values in a column

Exploring numeric value distribution in a column

Exploring spatiotemporal vector data using Time Manager

Creating animations using Time Manager

Designing time-dependent styles

Loading BaseMaps with the QuickMapServices plugin

Loading BaseMaps with the OpenLayers plugin

Viewing geotagged photos

Chapter 5. Classic Vector Analysis

Introduction

Selecting optimum sites

Dasymetric mapping

Calculating regional statistics

Estimating density heatmaps

Estimating values based on samples

Chapter 6. Network Analysis

Introduction

Creating a simple routing network

Calculating the shortest paths using the Road graph plugin

Routing with one-way streets in the Road graph plugin

Calculating the shortest paths with the QGIS network analysis library

Routing point sequences

Automating multiple route computation using batch processing

Matching points to the nearest line

Creating a routing network for pgRouting

Visualizing the pgRouting results in QGIS

Using the pgRoutingLayer plugin for convenience

Getting network data from the OSM

Chapter 7. Raster Analysis I

Introduction

Using the raster calculator

Preparing elevation data

Calculating a slope

Calculating a hillshade layer

Analyzing hydrology

Calculating a topographic index

Automating analysis tasks using the graphical modeler

Chapter 8. Raster Analysis II

Introduction

Calculating NDVI

Handling null values

Setting extents with masks

Sampling a raster layer

Visualizing multispectral layers

Modifying and reclassifying values in raster layers

Performing supervised classification of raster layers

Chapter 9. QGIS and the Web

Introduction

Using web services

Using WFS and WFS-T

Searching CSW

Using WMS and WMS Tiles

Using WCS

Using GDAL

Serving web maps with the QGIS server

Scale-dependent rendering

Hooking up web clients

Managing GeoServer from QGIS

Chapter 10. Cartography Tips

Introduction

Using Rule Based Rendering

Handling transparencies

Understanding the feature and layer blending modes

Saving and loading styles

Configuring data-defined labels

Creating custom SVG graphics

Making pretty graticules in any projection

Making useful graticules in printed maps

Creating a map series using Atlas

Chapter 11. Extending QGIS

Introduction

Defining custom projections

Working near the dateline

Working offline

Using the QspatiaLite plugin

Adding plugins with Python dependencies

Using the Python console

Writing Processing algorithms

Writing QGIS plugins

Using external tools

Chapter 12. Up and Coming

Introduction

Preparing LiDAR data

Opening File Geodatabases with the OpenFileGDB driver

Using Geopackages

The PostGIS Topology Editor plugin

The Topology Checker plugin

GRASS Topology tools

Hunting for bugs

Reporting bugs