[Dcmlib] Known bug : VR = UN

[Mathieu Malaterre]

JP,

	Could you open a bug at:

http://itk.org/Bug

	And assign it to me. ITK still uses GDCM 1.2

Thanks
Mathieu

Jean-Pierre Roux wrote:
> Hi, gdcm users.
> 
> Just to keep a track in the ML :
> 
> Till gdcm1.2 (included),  due to a mistake in the writter, gdcm-written 
> images holding a Data Element whose VR is "UN" (that's not so common),  
> are bugged, and cannot be re-read, nowhere
>  :-(
> A quick an dirty solution is to make a temporary version of gdcm, to 
> read those bugged images and rewrite them ( that will be done in a 
> kosker way ).
> 
> ==> in gdcmDocument.cxx, at the very begining of  FindDocEntryLength() 
> method,
> just commenter out the following
> || vr == "UN"
> (see hereafter)
> 
> void Document::FindDocEntryLength( DocEntry *entry )
>   throw ( FormatError )
> {
>   const VRKey &vr  = entry->GetVR();
>   uint16_t length16;       
>   if ( Filetype == ExplicitVR && !entry->IsImplicitVR() )
>   {
>      if ( vr == "OB" || vr == "OW" || vr == "SQ" || vr == "UT"
>                                          /* || vr == "UN" */    )
> 
> Sorry for the trouble;
> 
> Jean-Pierre Roux
> 
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