The data handler for VR "AT" should provide a way to retrieve the group and the id.

[Paolo Brandoli]

Now the data handler for AT is mapped to a uint32, but when the byte swapping happen then it is not possible to know where the group or the id is.

Example of encoding of an AT value (from the DICOM standard):

Example: A Data Element Tag of (0018,00FF) would be encoded as a series of 4 bytes in a Little-Endian Transfer Syntax as 18H,00H,FFH,00H and in a Big-Endian Transfer Syntax as 00H,18H,00H,FFH.

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[Paolo Brandoli]

Addresses #318. The tag group in an AT value is always on the higher word

→ <<cset 2c166535b086>>

[Paolo Brandoli]

Addresses #318. Disallow conversions from/to uint32 on VR AT

→ <<cset 05d3cc5f0aca>>

[Paolo Brandoli]

Addresses #318. Updated documentation for objective-c

→ <<cset 280325eaaa59>>

[Paolo Brandoli]

Addresses #318. Updated changes log

→ <<cset ac6368472de3>>

[Paolo Brandoli]

Resolves #318 (The data handler for VR "AT" should provide a way to retrieve the group and the id) as per SOP DEVENH/2

→ <<cset 3b1d89a0ac36>>