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Mastering Geospatial Development with QGIS 3.x

Mastering Geospatial Development with QGIS 3.x

By : Islam, Miles, Kurt Menke, GISP, Smith Jr., GISP, Pirelli, Van Hoesen, GISP
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Mastering Geospatial Development with QGIS 3.x

Mastering Geospatial Development with QGIS 3.x

4 (1)
By: Islam, Miles, Kurt Menke, GISP, Smith Jr., GISP, Pirelli, Van Hoesen, GISP

Overview of this book

QGIS is an open source solution to GIS and widely used by GIS professionals all over the world. It is the leading alternative to proprietary GIS software. Although QGIS is described as intuitive, it is also, by default, complex. Knowing which tools to use and how to apply them is essential to producing valuable deliverables on time. Starting with a refresher on the QGIS basics and getting you acquainted with the latest QGIS 3.6 updates, this book will take you all the way through to teaching you how to create a spatial database and a GeoPackage. Next, you will learn how to style raster and vector data by choosing and managing different colors. The book will then focus on processing raster and vector data. You will be then taught advanced applications, such as creating and editing vector data. Along with that, you will also learn about the newly updated Processing Toolbox, which will help you develop the advanced data visualizations. The book will then explain to you the graphic modeler, how to create QGIS plugins with PyQGIS, and how to integrate Python analysis scripts with QGIS. By the end of the book, you will understand how to work with all aspects of QGIS and will be ready to use it for any type of GIS work.
Table of Contents (17 chapters)
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1
Section 1: Introduction
3
Section 2: Getting Started
8
Section 3: Diving Deeper
11
Section 4: Becoming a Master

Raster color rendering

Raster color rendering modifies the properties of the raster to change the way it displays and interacts with the layer below it in the Layers panel. Color rendering is a part of the raster style properties for all band renderer types and works in the same way, regardless of the selected band renderer. In this section, we will discuss the parameters that are available for change in the Color rendering section of the raster style properties.

When a raster is first loaded, the Color rendering parameters are set to their default values, as shown in the following screenshot. At any time, the default values can be reloaded by clicking on the Reset button:

There are seven parameters that can be set in the Color rendering section, which are as follows:

  • Blending mode: This applies a blending method to the raster that mixes with layers below it in the Layers panel...
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