[chimera-dev] additional SimpleSession variable to facilitate session merging

[Eric Pettersen]

For what I imagine are the very few people who have written  
extensions that save their state into sessions and that restore their  
own models from sessions, you should know that I have added a  
variable to the SimpleSession module named "modelOffset".  During a  
normal session restore, modelOffset is zero.  During a session  
restore where pre-existing models haven't been closed (i.e. the  
session is being "merged" with the current models) modelOffset is a  
positive integer that should be added to restored model IDs (not sub- 
IDs) to avoid collision with currently-open models.  This is  
explained in further detail in the Programmer's Guide example for  
sessions:

http://www.cgl.ucsf.edu/chimera/docs/ProgrammersGuide/Examples/ 
Main_SessionSave.html

Let me know if anything is unclear...

--Eric


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


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