>From: address@hidden >Organization: GMU >Keywords: 200503110302.j2B32Tv2006037 McIDAS FNEXRAD composite Hi Ying, >Thank you Tom! I can get the GeoTIFF file, but what I get is pure black: no >image at all~~~ > >I tried to use McIDAS to see the straight GINI file, it also shows black when >I use IMGDISP, while at the bottom of the window, it does read the time of >the most recent file. > >So, the problem is on the decoded GINI file? I would guess that this would be the case. >Could you give me any clue? I can offer an example pqact.conf entry for the FNEXRAD composites and what the corresponding entries in LSSERVE.BAT would be: -- pqact.conf entry -- # # png compressed 1km radar GINI format FNEXRAD ^rad/NEXRCOMP/(...)/(...)_(........)_(....) PIPE -close decoders/pngg2gini -vl logs/ldm-mcidas.log data/gempak/images/sat/RADAR/\1/\2/\2_\3_\4 This will store the uncompressed images in subdirectories of ~ldm/data/gempak/images/sat/RADAR. -- LSSERVE.BAT entries -- DSSERVE ADD NEXRCOMP/1KN0R-NAT GINI TYPE=IMAGE DIRFILE=/export/data/ldm/gempak/nport/RADA R/1km/n0r/n0r_* "1 km N0R US Base Reflectivity Composite DSSERVE ADD NEXRCOMP/2KN1P-NAT GINI TYPE=IMAGE DIRFILE=/export/data/ldm/gempak/nport/RADA R/2km/n1p/n1p_* "2 km N1P US 1-hr Precip. Composite DSSERVE ADD NEXRCOMP/4KNTP-NAT GINI TYPE=IMAGE DIRFILE=/export/data/ldm/gempak/nport/RADA R/4km/ntp/ntp_* "4 km NTP US Storm Total Precip. Composite In this case /export/data/ldm is the same as ~ldm/data. I assume that you have already done so since you say that you can see the date/time label in the IMGDISP display, but I feel like I need to remind you that the edited entries in LSSERVE.BAT need to be made active in the 'mcidas' account: <as 'mcidas'> cd ~mcidas/data -- edit LSSERVE.BAT; use the value of DIRFILE= as the target of an 'ls' command and verify that the files can be seen cd ~mcidas/workdata batch.k LSSERVE.BAT Here are a couple of questions to help troubleshoot: - what is the output when you run the following as 'mcidas': cd ~mcidas/workdata imglist.k NEXRCOMP/1KN0R-NAT.-10 - what are the size of the files that are supposedly being decoded. If your ADDE dataset is setup to point at the uncompressed files, you would still get a listing of times, etc. since the file headers are not PNG compressed. The files as broadcast should be on the order of 1 MB each (I'm referring only to the 1 km National base refelectivity composites, not the other ones that are much smaller). The size of the files after uncompression will be on the order of 14 MB. >Thank you so much and sorry for keep bothering you.. No worries. Cheers, Tom -- NOTE: All email exchanges with Unidata User Support are recorded in the Unidata inquiry tracking system and then made publicly available through the web. If you do not want to have your interactions made available in this way, you must let us know in each email you send to us.
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