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vtk-m/docs/changelog/data-license.md
Kenneth Moreland f545feba8f Add changelog for documenting data license
2023-03-14 12:25:21 -06:00

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Clarified license of test data

The VTK-m source comes distributed with several data files used for regression testing. Some of these are generated specifically by VTK-m developers and are released as part of the VTK-m license, but some come from external sources. For those that come from external sources, we have clarified the license and attribution of those files. In particular, the following files originate from external sources.

  • internet.egr: Distributed as part of a graph data set paper. The license of this data is compatible with VTK-m's license. The file is placed in the third-party data directory and the information has been updated to clearly document the correct license for this data.
  • example.vtk and example_temp.bov: Distributed as part of the VisIt tutorials. This data is provided under the VisIt license (per Eric Brugger), which is compatible with VTK-m's license. The files are moved to the third-party data directory and the license and attribution is clarified. (These files were previously named "noise" but were changed to match the VisIt tutorial files they came from.)
  • vanc.vtk Data derived from a digital elevation map of Vancouver that comes from GTOPO30. This data is in the public domain, so it is valid for us to use, modify, and redistribute the data under our license.

The fishtank and fusion/magField datasets were removed. These are standard flow testing data sets that are commonly distributed. However, we could not track down the original source and license, so to be cautious these data sets have been removed and replaced with some generated in house.

For some of the other data sets, we have traced down the original author and verified that they propery contribute the data to VTK-m and agree to allow it to be distributed under VTK-m's license. Not counting the most trivial examples, here are the originators of the non-trivial data examples.

  • 5x6_&_MC.ctm* and 8x9test_HierarchicalAugmentedTree.dat*: Hamish Carr
  • warpXfields.vtk and warpXparticles.vtk: Axel Huebl
  • amr_wind_flowfield.vtk: James Kress
  • DoubleGyre.vtk*: James Kress
  • venn250.vtk: Abhishek Yenpure
  • wedge_cells.vtk: Chris Laganella
  • kitchen.vtk: Copyright owned by Kitware, Inc. (who shares the copyright of VTK-m)