GDAL new command line interface: introduction and advanced topics

PDF version available here.

• Introduction
  • Target audience
  • Content
  • Copyright and License
• Pre-requisites: GDAL installation and workshop sample dataset download
  • Linux
    • Docker image containing binaries and workshop sample datasets
    • Conda installation
    • GDAL installation in a dedicated conda environment
  • MacOS X
    • Conda installation
    • GDAL installation in a dedicated conda environment
  • Windows
    • Conda installation
    • GDAL installation in a dedicated conda environment
    • Install a Bash shell
    • Create a launcher script
  • Getting datasets used in the workshop
  • Installing jq utility (JSON processing)
  • Strongly recommended: installing QGIS for visualisation
  • Text editor
  • Using GDAL development builds (for advanced / risk-tolerant users)
• Getting information from raster datasets
  • Utilities demonstrated
  • Scanning a folder for GDAL datasets
  • Raster dataset with subdatasets
  • Text information on a raster dataset
  • Hidden feature: symbolic links and subdatasets
  • Short version
  • Getting information as JSON
  • Exercise
  • Invoking Algorithms from Python
  • Getting pixel value
• Getting information from vector datasets
  • Utility
  • Getting vector layer names
  • Getting structure of vector layers
  • Listing features
  • Applying an attribute filter, and limiting the output
  • JSON output / open options
  • Exercise
• General principles of the new GDAL CLI
  • Why a new CLI ?
  • Principles of new CLI
    • git style hierarchical commands
    • Smaller scope programs
    • Program syntax
    • I need help !!!
    • Smart auto-completion
      • Discover sub-programs
      • Discover named arguments
      • Discover values of arguments
      • Discover contextual values of arguments
• Format conversion
  • Raster
  • Exercise
  • Vector
  • Exercise
• Subsetting, resampling, reprojection
  • Raster resampling/resizing
  • Let's do that in Python
  • Clipping
  • Exercise
  • Reprojection
  • Exercise
• Tiling, merging
  • Raster mosaic
  • Raster tiling
  • Doing everything at the same time using a pipeline
  • Exercise
  • Vector partitioning
  • Vector concatenation
• DEM, VSI and nested pipelines
  • Failed attempt at getting a remote DEM
  • Successful attempt
  • Other successful attempt (using /vsis3/)
  • Hypsometric rendering
  • Shaded map
  • Combining hypsometric rendering and hillshade
  • Doing it in one step: nested pipeline !
  • Exercise
• Pixel operations
  • Pixel-wise computations
  • Exercise
  • Focal statistics
  • Zonal statistics
  • Exercise
• GDAL multidimensional tools
  • Downloading and extracting information using GDAL multidimensional API
  • Inspecting
  • Mosaicing / creating a 3D cube
• Survey