Hi François You need to use codewords and equations.
In the sites section of the structure, give the occupancy of one element a name (eg al_occ), and then for the other atom on the same site, give it an equation in the codes tab (eg =1-al_occ;) You would then put min/max limits on the first atom of 0/1, and all should work. I'll send you a screen shot off-list, lest I get in trouble for sending attachments. Matthew Rowles On Tue, 19 Feb 2019 at 18:04, François Goutenoire < francois.gouteno...@univ-lemans.fr> wrote: > Dear Rietveld users, > > One more question ! I am unable to find the way to constraint occupancy > factor for mixed sites in Topas in GUI mode. > > Sorry for this basic question, but I did not find any examples in > Archives Mailing List / Topas Wiki / or even in the Topas examples > > Best whishes, François > > -- > > ********************************************************************************************* > Pr. Francois GOUTENOIRE > e-mail: francois.gouteno...@univ-lemans.fr > Tel: 02.43.83.33.54 > FAX: 02.43.83.35.06 > Skype Entreprise visio conférence > Département des Oxydes et Fluorures > Institut des Molécules et des Matériaux du Mans > IMMM - UMR CNRS 6283 > Université du Maine - Avenue Olivier Messiaen > F-72085 Le Mans Cedex 9 > FRANCE > > ********************************************************************************************* > Formation Rietveld CNRS 2019 > https://cnrsformation.cnrs.fr/stage.php?stage=19089 > Formation SAXS et Réflectivités pour couches minces et matériaux > nanostructurés. > https://cnrsformation.cnrs.fr/stage.php?stage=19093 > Bibliographie > > https://scholar.google.fr/citations?hl=fr&user=qC-lmN4AAAAJ&view_op=list_works&authuser=1&sortby=title > https://orcid.org/0000-0001-5339-3002 > > ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > Please do NOT attach files to the whole list <alan.he...@neutronoptics.com > > > Send commands to <lists...@ill.fr> eg: HELP as the subject with no body > text > The Rietveld_L list archive is on > http://www.mail-archive.com/rietveld_l@ill.fr/ > ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > >
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Please do NOT attach files to the whole list <alan.he...@neutronoptics.com> Send commands to <lists...@ill.fr> eg: HELP as the subject with no body text The Rietveld_L list archive is on http://www.mail-archive.com/rietveld_l@ill.fr/ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
