QGIS 3.10 - Geo-analysis Practice

This educational material has been developed by Eng. Lorenzo Amici, Dr. Daniele Oxoli, Prof. Maria A. Brovelli and Prof. Fabio Salice of Politecnico di Milano (Italy) with the mentorship and support of Dr. HaeKyong Kang of the Korea Research Institute for Human Settlements, within the project of collaboration between the OSGEO foundation and the UN Open GIS initiative.

Contents:

• 1. General Info
  • 1.1. Purpose of this documentation
  • 1.2. Target audience
  • 1.3. License
• 2. Preparation
  • 2.1. Install QGIS
  • 2.2. Download the data
  • 2.3. Create a new project
    • 2.3.1. Import vector data
    • 2.3.2. Import raster data
    • 2.3.3. Layers panel
  • 2.4. Manipulate CRS of the project and the data
    • 2.4.1. Reprojecting vector layers
    • 2.4.2. Reprojecting raster layers
  • 2.5. Clip all the data to the study area
    • 2.5.1. Create the working area
    • 2.5.2. Clipping vector layers
    • 2.5.3. Clipping raster layers
• 3. Vector operations
  • 3.1. Buffer operations
    • 3.1.1. Single buffer
    • 3.1.2. Multi-ring buffer
  • 3.2. Merge vector layers
  • 3.3. Overlay operations
    • 3.3.1. Union
    • 3.3.2. Intersection
    • 3.3.3. Dissolve
    • 3.3.4. Difference
    • 3.3.5. Symmetrical difference
    • 3.3.6. Spatial join
  • 3.4. Proximity analysis
    • 3.4.1. Convert geometry type
    • 3.4.2. Average Nearest Neighbor
    • 3.4.3. Distance from point to point
    • 3.4.4. Distance from point to layer
  • 3.5. Network analysis
    • 3.5.1. Shortest path
    • 3.5.2. Generate service area
  • 3.6. Kernel density
  • 3.7. Inverse Distance Weighting
• 4. Raster operations
  • 4.1. Merge raster

Index

• Index