[udf-dlm-develop] Bug fixes: record positioning, start/stop az

[Eduardo S. <es...@la...>]

Folks,

I have checked in two significant changes to the udf-dlm code:

  * Significant rewrite of the "udf_open" and "file_pos" code,
    intended to work around a bug in FilePosRec().  Some of 
    you may have noticed that UDF_OPEN() wasn't positioning
    properly at the start of a record.

    This change only affects instruments with "blocking=1" in 
    the PIDF, viz: ImeS*IMG (EUV), a lot of HENA ones, and the
    IMAGE instruments for LENA / MENA.


  * START_AZ and STOP_AZ are now properly-dimensioned vectors
    instead of scalars.  I foolishly tried to optimize them
    down early on, since in all cases I'd seen the values were
    identical for each record, but Jörg-Micha discovered one
    case for which this isn't true.

These changes have been checked in to the CVS repository at
sourceforge.  You can do "cvs update" to obtain them.  I will
not make a general release until the code is better tested.

Thanks,
^E