[NeXus-code-tickets] [NeXusCode] #183: deletting data from nexus file

NeXus Data Format Library and Applications noreply at nexusformat.org
Thu Jun 4 09:40:07 BST 2009


#183: deletting data from nexus file
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 Reporter:  Cpascual     |       Owner:  Unassigned
     Type:  enhancement  |      Status:  new       
 Priority:  minor        |   Milestone:            
Component:  napi         |     Version:  4.2.0     
 Keywords:               |  
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 It would be nice if Nexus supported deleting of data.
 This ticket is related to the following thread:

 http://lists.nexusformat.org/pipermail/nexus/2009/000332.html

 It seems that hdf5 supports deleting (pointed out by Freddie):

 http://hdfgroup.org/hdf5-quest.html#del

 and that it is possible to implement it for xml as well (pointed out by
 Darren Kelly):

 http://lists.nexusformat.org/pipermail/nexus/2009/000336.html

 None of these solutions recover the space in the file but, at least, they
 allow for restructuring the nexus tree and removing/changing metadata,
 which are my main concerns.
 When saving space is a concern, recreating the file after filtering out
 unwanted content seems the way to go (until hdf5 supports free space
 handling).

-- 
Ticket URL: <http://trac.nexusformat.org/code/ticket/183>
NeXus Data Format Library and Applications <http://www.nexusformat.org/>
NeXus Data Format Library and Applications



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