id summary reporter owner description type status priority milestone component resolution keywords cc workpackage 587 Refactor sum/product model pkienzle "We should be able to define mixture models using something as simple as: from sasmodels.sasview_models import mixture Model = mixture('sphere', 'cylinder') rather than large template that is currently produced by a sum model. This will allow us to evolve the sasview model interface without breaking custom mixture models store in the .sasview/plugin_models. Similarly for product models. See #583 for more info. May also consider making mixture/product models as something generated by the user as needed as part of the fit page rather than having to name every mixture that they are using in their fits. Ideally this would be done as part of the 4.0.0 release so we do not need to support the existing sasview plugin model definitions indefinitely. " enhancement new major SasView Next Release +1 SasView Beta Approximation Project