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[LDM #DHD-802401]: Two Questions: LDM on Mac OSX 10.5.x and sample/example pqact.conf



Hi Matthew,

re: your comment to Jeff
> Thank you SO much - this is very helpful.

We aim to please ;-)

> Yes, I'm in the McIDAS world....   :-)
> I'll be in touch if I'm stuck....

OK.  I want to remind you of something I have mentioned in the
past:

- Unidata McIDAS containes built-in support for PNG-compressed
  AREA file format imagery; SSEC's distribution of McIDAS does
  not contain this support.

So, an action you may see in an example pqact.conf file that
Jeff forwarded previously might not work if you are using
SSEC's McIDAS distribution.  For example:

These action will file PNG-compressed from the IDD UNIWISC (aka MCIDAS)
datastream using the ldmfile.sh script that I include in Unidata McIDAS-X:

#########################################################################
#
# UNIWISC (Unidata-Wisconsin datastream) section pqact's FILE action
#
# NOTEs:
#        - stop and restart the LDM to activate
#
#########################################################################

# Pattern-action file used for FILEing PNG-compressed UNIWISC and FNEXRAD images

# Vis (0.65 um)
UNIWISC ^pnga2area Q. (U[^ACXY13]) (.*) (.*)_IMG (0.65)um (.*) (........) (....)
        PIPE    -close  util/ldmfile.sh
        /data/ldm/mcidas/images/sat/\3/\5/VIS/VIS_\6_\7

# Short IR (3.9 um)
UNIWISC ^pnga2area Q. (U[^ACXY13]) (.*) (.*)_IMG (3.9)um (.*) (........) (....)
        PIPE    -close  util/ldmfile.sh
        /data/ldm/mcidas/images/sat/\3/\5/\4/\4_\6_\7

# WV (6.[58] um)
UNIWISC ^pnga2area Q. (U[^ACXY13]) (.*) (.*)_IMG (6..)um (.*) (........) (....)
        PIPE    -close  util/ldmfile.sh
        /data/ldm/mcidas/images/sat/\3/\5/WV/WV_\6_\7
 ...

Sites running SSEC McIDAS will need to get hold of the ldm-mcidas package's
'pnga2area' decoder to uncompress the images into uncompressed AREA files.
The same actions above using 'png2area' would look like:

#########################################################################
#
# UNIWISC (Unidata-Wisconsin datastream) section using LDM-McIDAS
#         'pnga2area' decoder
#
# NOTEs:
#        - obtain 'pnga2area' decoder from binary LDM-McIDAS distribution
#          or build from source
#        - copy 'pnga2area' to ~ldm/decoders and make sure that
#          ~ldm/decoders is in the PATH for 'ldm'
#        - copy SATANNOT and SATBAND from the LDM-MCIDAS etc directory
#          to ~ldm/etc
#        - stop and restart the LDM to activate
#
#        UNIWISC product headers look like:
#
#        pnga2area Q0 CF 0015 GOES-10_SND UNKBAND 1km 20000525 2000
#                  ^  ^  ^    ^           ^       ^   ^        ^
#                  |  |  |    |           |       |   |        |
#                  v  v  v    v           v       v   v        v
#                  Qx pd anum SAT         BAND    RES CCYYMMDD HHMM
#                     \1 \2   \3          \4      \5    \6     \7
#
#########################################################################

#
#### PNG compressed Unidata-Wisconsin channel image (AREA) files
#

# Vis (0.65 um)
UNIWISC ^pnga2area Q. (U[^ACXY13]) (.*) (.*)_IMG (0.65)um (.*) (........) (....)
        PIPE    -close
        pnga2area -vl logs/ldm-mcidas.log
        -a etc/SATANNOT
        -b etc/SATBAND
        /data/ldm/mcidas/images/sat/\3/\5/VIS/VIS_\6_\7

# Short IR (3.9 um)
UNIWISC ^pnga2area Q. (U[^ACXY13]) (.*) (.*)_IMG (3.9)um (.*) (........) (....)
        PIPE    -close
        pnga2area -vl logs/ldm-mcidas.log
        -a etc/SATANNOT
        -b etc/SATBAND
        /data/ldm/mcidas/images/sat/\3/\5/\4/\4_\6_\7

# WV (6.[58] um)
UNIWISC ^pnga2area Q. (U[^ACXY13]) (.*) (.*)_IMG (6..)um (.*) (........) (....)
        PIPE    -close
        pnga2area -vl logs/ldm-mcidas.log
        -a etc/SATANNOT
        -b etc/SATBAND
        /data/ldm/mcidas/images/sat/\3/\5/WV/WV_\6_\7

Since AMRC is a member in good standing with the MUG, you are allowed
to access the Unidata distribution of McIDAS.

Cheers,

Tom
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Ticket Details
===================
Ticket ID: DHD-802401
Department: Support IDD
Priority: Normal
Status: Closed


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