Documentation/4.0/Developers/Modules

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Slicer supports 3 types of modules. While the developer has to choose between one of the 3 types to implement its module, the end user won't notice a difference as they all share the look&feel. The choice for a given type of module is usually based on the type of inputs/parameters for a given module.

Command Line Interface (CLI)

CLIs are standalone executables with a limited input/output arguments complexity (simple argument types, no user interactions...). They are typically implemented using ITK.

Loadable Modules

Loadable modules are C++ plugins that are built against Slicer. They define custom GUIs for their specific behavior as they have full control over the application.

  • C++ shared library
  • Full control over the GUI (Qt) and Slicer internals (MRML, logics, display managers...)
  • Optimized for heavy computations
  • Links:

Scripted Modules

Scripted modules are written in Python and typically but not necessarily use the high level API of Slicer and toolkits.

  • Python Console
  • Full access to the API: VTK, ITK, MRML, Qt and Slicer are fully wrapped
  • Recommended for fast prototyping
  • Links: