SasView 4.0.1

All users of 4.0 should upgrade to this version

This point release is specifically to address the problems with P(Q)*S(Q) in v4.0.0 that resulted as side-effects of the model infrastructure redesign.

From the Known Issues in v4.0 :

Critical - will be fixed in a bug release due imminently:

As part of the model structure refactoring a new bug was introduced that makes P * S unusable in this version unless the background is fixed to zero: The background is multiplied by P(q) including all the scaling factors. Release 4.0.1 should be available soon that fixes this.

This behaviour of P(Q)S(Q) is now corrected and non zero backgrounds are possible and the extraneous scaling factors have been removed. The effective radius used for the structure factor is *still calculated (as per the documentation) automatically from the form factor using the radius of a sphere that has the same second viral coefficient as the particle. This is only valid for particles with limited axial ratios.

[This release makes use of sasmodels v0.95]