VTK/ARB/Meetings/August 2010: Difference between revisions

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== Notes ==
== Notes ==
Modularization
* Reorganize VTK, clean up dependencies
* Clean up build process, use newer CMake functionality
* Copy out some subdirectories into separate repository
* People need to link to a different set of libraries
* Kit boundaries are bound by subclasses
* VTK has a "fat" hierarchy tree
* Within common, there are things that are not too common
** Implicit functions, math, etc.
* Make a graph of dependencies, perhaps do clustering
* What dependencies do the examples have?
* Potentially make XML readers / writers in own kit so people could work with VTK file format without much VTK
* (Berk) Send information about XML C interface
* Look at what ITK does with Rippl this coming year
* Possibly use namespaces?
* (Berk) Ask for help from topic experts on how to organize the classes
* Move some informatics stuff into Titan as part of the reorganization
* Look into "shopping cart" approach for the future where you create custom libraries based on individual class needs
* Remove unnecessary dependencies among kits
* (Berk) Define some variables that make old targets work?
Removing 4.0 compatibility layer
* In VTK 4.0, left interdependencies between data objects and pipeline
* Main incompatibility is people using b->SetInput(a->GetOutput())
* Should we leave the SetInput() function?
** Leaving it will produce a runtime error for the case above. It would also allow existing code to work.
** Changing the name to SetInputDataObject() will produce a compile-time error.
* Make a script that checks for these errors.
* Flagging errors in next release when people are connecting pipelines using SetInput()
* Communicate using "remove legacy" flag to VTK community to test whether their code will work in VTK 6.0.
* Make sure "key" toolkits are ready and notified of upcoming changes
** Slicer
** ITK
** ParaView
** VisTrails
** Titan
** others?


== Action Items ==
== Action Items ==
== Some Other Time ==
* Change to static vtkAlgorithm::Connect(a->GetOutputPort(), b->GetInputPort())?

Revision as of 20:15, 17 August 2010

Agenda

Notes

Modularization

  • Reorganize VTK, clean up dependencies
  • Clean up build process, use newer CMake functionality
  • Copy out some subdirectories into separate repository
  • People need to link to a different set of libraries
  • Kit boundaries are bound by subclasses
  • VTK has a "fat" hierarchy tree
  • Within common, there are things that are not too common
    • Implicit functions, math, etc.
  • Make a graph of dependencies, perhaps do clustering
  • What dependencies do the examples have?
  • Potentially make XML readers / writers in own kit so people could work with VTK file format without much VTK
  • (Berk) Send information about XML C interface
  • Look at what ITK does with Rippl this coming year
  • Possibly use namespaces?
  • (Berk) Ask for help from topic experts on how to organize the classes
  • Move some informatics stuff into Titan as part of the reorganization
  • Look into "shopping cart" approach for the future where you create custom libraries based on individual class needs
  • Remove unnecessary dependencies among kits
  • (Berk) Define some variables that make old targets work?

Removing 4.0 compatibility layer

  • In VTK 4.0, left interdependencies between data objects and pipeline
  • Main incompatibility is people using b->SetInput(a->GetOutput())
  • Should we leave the SetInput() function?
    • Leaving it will produce a runtime error for the case above. It would also allow existing code to work.
    • Changing the name to SetInputDataObject() will produce a compile-time error.
  • Make a script that checks for these errors.
  • Flagging errors in next release when people are connecting pipelines using SetInput()
  • Communicate using "remove legacy" flag to VTK community to test whether their code will work in VTK 6.0.
  • Make sure "key" toolkits are ready and notified of upcoming changes
    • Slicer
    • ITK
    • ParaView
    • VisTrails
    • Titan
    • others?

Action Items

Some Other Time

  • Change to static vtkAlgorithm::Connect(a->GetOutputPort(), b->GetInputPort())?