• Main links

  • Extensions — 3D Slicer documentation¹
  • Extensions Manager — 3D Slicer documentation²

• slicerrc.py is a thing! sample: 3D-Slicer-Scripts/.slicerrc.py at master · jzeyl/3D-Slicer-Scripts · GitHub

• Slicer custom application deployment to many computers - Development - 3D Slicer Community

  • SlicerQReads.exe --python-code "folder='S:\SlicerQREADS\TestImages'; import os; slicer.util.loadVolume(folder + '/' + os.listdir(folder)[0], {'singleFile': False})"
  • alternatively: Slicer.exe --python-script "/full/path/to/myscript.py" --no-splash --no-main-window³

• Slicer can run in Docker⁴

• Slicer can run in webbrowser⁵

• Slicer can run in jupyter⁵, including partially (e.g. only a single view etc!)

Slicer --help:

  --testing                                     Activate testing mode. It implies --disable-settings and --ignore-slicerrc. (default: false)
  --disable-python                              Disable python support. This is equivalent to build the application with Slicer_USE_PYTHONQT=OFF.
  --python-script                               Python script to execute after slicer loads.
  --python-code                                 Python code to execute after slicer loads.
  -c                                            Python code to execute after slicer loads. By default, no modules are loaded and Slicer exits afterward.
  --ignore-slicerrc                             Do not load the Slicer resource file (~/.slicerrc.py).
  --additional-module-path                      Additional module path to consider when searching for modules to load.
  --additional-module-paths                     List of additional module path to consider when searching for modules to load.

• Slicer modules — todo, CLI things with easy arguments

  • Documentation/Nightly/Developers/Modules - Slicer Wiki

• Slicer extensions/modules creation

  • Developing extension in 3D Slicer - Google Slides presentation
    • 
    • Sharing extensions there: TL;DR use slicer publishing thing to publish to own repo, then PR to slicer main extensions index repo (GitHub - Slicer/ExtensionsIndex: Slicer extensions index)
      • Sample JSON: ExtensionsIndex/SurfaceWrapSolidify.json at main · Slicer/ExtensionsIndex · GitHub
      • Pull requests · Slicer/ExtensionsIndex has code for existing recent extensions that may be useful

• Extension manager

  • Extensions Manager — 3D Slicer documentation ²
  • Can have different extension server URI!
  • Updating:
    • Extensions Manager — 3D Slicer documentation
    • TL;D/R extension manager can do that incl. automatically

• CI/CD exists for extensions published officially

• Misc:

  • Script repository — 3D Slicer documentation has sample uses of slicer CLI!
  • 3D-Slicer-Scripts/.slicerrc.py at master · jzeyl/3D-Slicer-Scripts · GitHub

• Script repository — 3D Slicer documentation has this:

  • This code snippet can be useful for sharing code in development without requiring a restart of Slicer.

  • gist.githubusercontent.com/pieper/a9c0ba57de3833c9f5aea68247bda597/raw/82d73d85340ffd205b01fc339b096a8607cfe02b/InstallSlicerModuleFromGit.py
  • TODO, does this mean updating extensions without restart?
  • EDIT: I can reload the code of the extension as-is

• Fazit:

  • extensions can be built (C++) or not (python)
  • enabling:
    • add to CLI path to “additional module paths” path to place where .py extension is locally
      • git pull etc.?
      • get a .zip from the repo and use the python code to get it from there and update
    • make our own extension manager repo thing and use automatic updating functionality

• Other bits

  • Making Slicer simpler by hiding many things: Simple 3D Slicer based image viewer
  • And hiding a module UI: Slicer/Modules/Scripted/DICOMPlugins/DICOMScalarVolumePlugin.py at 022a4f1a347ebb24509a50f6c8928ae26d3c5955 · Slicer/Slicer