QGIS | Raster data tools
> Objective
The students will learn more about how to work with raster data
The students will learn how to clip raster data
The students will learn how to create attributes tables for raster data
> Index / Table of Contents
Introduction
Tutorial(s)
Raster data
Clip rasters
Attribute tables
QGIS installation
> Summary and Highlights
Introduction
The following tutorials addresses raster data. The first tutorial covers the basics of working with raster data. Then, a tutorial shows how to clip raster data. The last part covers how to add raster data to an attribute table.
Tutorial(s)
Basics
Working with raster data QGIS Training manual: “7.1. Working with Raster Data” Language(s): English Chapters: follow along: loading raster data, follow along: create a virtual raster, transforming raster data, merging rasters, in conclusion, what’s next https://docs.qgis.org/3.10/en/docs/training_manual/rasters/data_manipulation.html
Clip rasters
A part of a raster can be extracted. The following tutorial shows how to clip rasters.
Clip a raster using a mask polygon layer Hans van der Kwast: “Iteratively clip a raster with a polygon layer in QGIS” Language(s): English Time: 4min 52s Chapters: introduction (start-0:28), clip raster by mask layer (0:28-1:24), create a new model (1:24-end) https://www.youtube.com/watch?v=e5iWslQc7sY
Attribute tables
Attribute tables contain information on the features of a given layer. The following tutorial explains how to add one for a raster layer.
Add raster attribute tables Hans van der Kwast: “Adding Raster Attribute Tables to Rasters in QGIS” Language(s): English Time: 4min 32s Chapters: intro (start-0:06), raster attribute table (0:39-4:24), outro (4:24-end) https://www.youtube.com/watch?v=No9I3PHofss
Reclassify thematic rasters with a lookup table Hans van der Kwast: “Reclassify Rasters by Table in QGIS” Language(s): English Time: 2min https://www.youtube.com/watch?v=s7KrIjvcCz0
> QGIS Installation
Do you still need to install QGIS? The QGIS installation and update section explains how to install QGIS on Windows and macOS.
Useful Links
Hans van der Kwast YouTube channel
#QGIS, #Raster data, #Clip, #Attribute table
Hans van der Kwast. (2020, May 5). Iteratively clip a raster with a polygon layer in QGIS [Video]. YouTube.