[Chimera-users] suggested feature/model panel

[Eric Pettersen]

On Jan 22, 2009, at 3:15 PM, Eric Pettersen wrote:
> On Jan 21, 2009, at 5:05 PM, Matthew Dougherty wrote:
>
> > 1) ability to create folders in the model panel so models can be
> > grouped
> > 2) ability to have a model in multiple folders
> > 3) ability to show/hide in a folder by a a single checkbox
> > 4) ability to name the folder
>
> These are good suggestions, and we have discussed adding some kind of
> grouping mechanism in Chimera given that there are a lot of situations
> where you want to treat a set of models as a single entity (e.g.
> multiple structures fit into a EM map).
>
> I think #2 and #3 are in conflict though.  Really, I don't think you
> want #2 -- it's too confusing.  Say a model is in two groups:  you
> close one group -- what happens?  You hide one group -- what happens?
> You deactivate one group and move the other -- what happens?  Perhaps
> if you elaborated on the motivation for putting a model in multiple
> groups then some other alternative could be devised that provides what
> you need.
>
> I'll open a change-request in our Trac database for "grouping
> mechanism" and include the above.  I don't really want to promise a
> timeline, but the issue is a concern of ours.
Seems like I never opened that ticket, at least I can't find it  
searching the database.  A year later I did open a very similar ticket  
(#8253) which has now been implemented.  So the Model Panel now  
supports grouping (and ungrouping) models in the current daily build,  
which at least minimally satisfies points 1, 3, and 4 above.  The  
groups can be named as you wish, and changing active/shown/color/etc.  
for a group changes the corresponding attribute of all the models in  
the group.

Right now if multiple models are opened from a single data source they  
are automatically grouped.  This comes into play most often when  
opening NMR ensembles.  If anyone has any strong opinion as to whether  
this is a good default behavior or not, please speak up!

--Eric

                         Eric Pettersen
                         UCSF Computer Graphics Lab
                         http://www.cgl.ucsf.edu


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