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Paul Kienzle edited this page Sep 23, 2026 · 31 revisions

sasmodels Wish List Page

  • GUI - Remove Sasmodels shim from SasView
  • refactor for better GPU/CPU performance (Perhaps using pytorch or numba? #616)
    • This will let us drop tccbox from the dependencies
    • Alternatively, supply minimal headers so tccbox can run on mac/linux #500
  • sasmodels changes/upgrades
    • Add Qz correctly (relies on sasdata refactor including that properly) #514
    • Add 1D oriented models (or ability to fit 1D cuts of an anisotropic 2D data set)
    • Multiple scattering #246
    • Built in support for complex numbers in models to facilitate non centrosymmetric models as well as a new way to build models from components using the full complex representation of the amplitudes. See for example "A general core shell model #696
    • Normalize Vol fraction/scale handling #232 #219 #720
    • Support proper MASKing for 1D - note this may affect how resolution is calculated
    • Support for complex numbers in F(Q) (all 3 directions F(Qx,Qy,Qz))
    • Refactor parameters (non-fittable but setable #266, derived parameters, etc)
      • what about the notion of multiplicity or "control" parameters?
      • return intermediate and derived values and vectors from the calculation
    • Better support for model variants #215
      • Models have natural variants such as radius_major-radius_minor vs radius-aspect vs volume-aspect
      • Build the variants into the model?
      • Hackish support via reparameterize --- better GUI support?
    • Refactor integrations to be
      • User-settable number of integration terms #712
      • Plugins chosen by the caller (user)
      • Rewritten to be better parallelizable
    • Add/refactor S(Q)
    • Full support for python models (incl. magnetism, orientational dispersion, including 2D)#247
      • 2D slit resolution (takes 2D and integrates over slit) exits in explore
    • Direct support for composite models #235
      • Parameters for different models separated in the GUI
      • Composition saved in the project file
      • No plugin model needed --- the project file can be shared
    • Other as identified
  • GUI - allow fitting on data operations
  • GUI - plot final SLD profile (or FT amplitude?)
  • GUI - Advertise marketplace in the fitting window
  • GUI - Make plugin model documentation render the same as built in models #761
  • Provide validation tools (particularly since AI is being used more and more) - also important for moving from marketplace to core
    • Help with checking documentation matches code, tests and docs meet specs before moving to core
    • Validating results? How?
  • Marketplace refactor?
    • Integrate documentation properly so it does not get uploaded separately
    • Add version control to models (i.e. for upgrades or bug fixes)
    • Add fields for newer versions of a model, for which versions of sasmodels the models work/no longer work etc.
    • Possibly add new categories such as distribution - kept in a separate section but also version controlled etc.
    • Etc
  • Other as identified
  • The existing issues should be mined for immediate actions (or for removal as obsolete, done, or won’t do)
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