Help for CONVERT_MINI_HEADER

Reads a 64-byte MMM mini-header from the mini_file (at offset mini_offset)
and converts the values into labels in a MINI_HEADER group.  Originally
written for the MSAM project (Mastcam Stereo Analysis and Mosaics, a PDART
task).

The INP file is modified to have the labels added.

The mini_file may be the .dat file delivered by MMM to PDS (in which case the
offset is 0).

ZStack mini-headers are formatted slightly differently.  If this is a
zstack, set the -zstack keyword.

The mini-header is the same between MSL and M2020.  However, M2020 uses zoom,
while MSL does not.  The default -msl thus omits zoom.  Add -m20 to add the
zoom value to the articulation device state.

History

2018-01-23	rgd	Initial version
2019-12-09	rgd	Added -m20 and zoom

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