VTK/ARB/Meetings/August 2010: Difference between revisions
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* Clean up build process, use newer CMake functionality | * Clean up build process, use newer CMake functionality | ||
* Copy out some subdirectories into separate repository | * Copy out some subdirectories into separate repository | ||
* | * Only incompatibility is that people need to link to a different set of libraries | ||
* Kit boundaries are bound by subclasses | * Kit boundaries are bound by subclasses | ||
** This is not much of an issue since VTK has a "fat" hierarchy tree | ** This is not much of an issue since VTK has a "fat" hierarchy tree | ||
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* What dependencies do the examples have? | * 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 | * Potentially make XML readers / writers in own kit so people could work with VTK file format without much VTK | ||
* Look at what ITK does with | * Look at what ITK does with [http://ryppl.org Ryppl] this coming year | ||
* Possibly use namespaces? | * Possibly use namespaces? | ||
* Move some informatics stuff into Titan as part of the reorganization | * Move some informatics stuff into Titan as part of the reorganization | ||
Latest revision as of 20:43, 17 August 2010
Agenda
- http://www.vtk.org/Wiki/VTK/Remove_VTK_4_Compatibility
- http://www.vtk.org/Wiki/VTK/Modularization_Proposal
Notes
Modularization
- Reorganize VTK, clean up dependencies
- Clean up build process, use newer CMake functionality
- Copy out some subdirectories into separate repository
- Only incompatibility is that people need to link to a different set of libraries
- Kit boundaries are bound by subclasses
- This is not much of an issue since 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
- Look at what ITK does with Ryppl this coming year
- Possibly use namespaces?
- 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
- Consensus: This will be a good thing, let's do it.
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()
- Should 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?
- Consensus: Remove compatibility layer, leave SetInput() but change behavior in 6.0.
Action Items
- (Berk) Send information about XML C interface to ARB
- (Berk) Ask for help from topic experts on how to organize the classes, present ideas to VTK community
- (Berk) Look into defining some variables that make old targets work
- (Kitware and VTK community) Do modularization of kits
- (Kitware) Remove 4.0 legacy code
Some Other Time
- Change to static vtkAlgorithm::Connect(a->GetOutputPort(), b->GetInputPort())?
