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20001026: McIDAS SCHEMA regristration; use of TXT2MD (cont.)
- Subject: 20001026: McIDAS SCHEMA regristration; use of TXT2MD (cont.)
- Date: Tue, 31 Oct 2000 07:13:00 -0700
>From: Xu Li <address@hidden>
>Organization: UMD
>Keywords: 200010262140.e9QLe8411152 McIDAS SCHE LSCHE TXT2MD
Xu,
Sorry I couldn't get to this sooner, but I am putting on a McIDAS workshop
at the moment. Also, you are likely to get much faster response to
questions when you send your email to Unidata User Support
(address@hidden). There is more than one person reading the
Support mail box, so questions get answered faster.
>Thanks a lot for your reply to my question on schema registration. It
>helps a lot.
You are welcome.
>Now, the schema registration seems OK from the following:
>============================
>lsche.k CTYP
>
>NAME: CTYP VERSION: 2 DATE: 2000300 TEXTID: "CLOUD MASK AND TYPE
>---- -------
> DEFAULT NUMBER OF ROWS: 72 INTEGER ID: 0
> COLS: 3600 MISSING DATA VALUE:
>-2139062144
> REPEAT GROUP: NUMBER OF REPETITIONS: 1
> STARTING POSITION: 6
> SIZE: 8
> NUMBER OF KEYS IN ROW HEADER: 2
> COL HEADER: 3 STARTING AT POSITION 3
> DATA RECORD: 8 STARTING AT POSITION 6
> ----
> 13 TOTAL
>
> KEY SCALE UNIT KEY SCALE UNIT KEY SCALE UNIT
> ---- ----- ---- ---- ----- ---- ---- ----- ----
> DATE 0 TIME 0 ALON 0
> ALAT 0 IDN 0 SFTP 0
> RD01 0 RD02 0 RD03 0
> RD04 0 RD05 0 MASK 0
> TYPE 0
>lsche.k: DONE
>=========================
This looks good.
>What I did is to copy the file SCHEMA from the directory
>(/usr/mcidas/data for my case)
>where the McIDAS was installed to my ~mcidas/data directory.
>
>Is this resonable?
Yes, this is totally reasonable. Your McIDAS-X sessions should use this
copy of SCHEMA instead of the one in the ~mcidas/data directory if your
Unix MCPATH environment variable has been set so that your mcidas/data
directory comes before /usr/mcidas/data.
>But when I tried to convert a text file to MD file, it failed like this:
>
>(I have added the MD data set by DSSERVE ADD ....)
>=============================
>
>txt2md.k txt.dat 100 CTYP
> TXT2MD -- BEGIN
>txt2md.k: OVERSIZE ROW WITH NC= 6000
>txt2md.k: MAXIMUM ALLOWABLE IS 3500
>================================
This must have come after running for awhile. Your schema list above
shows that you set the maximum number of rows to be 3600. I believe
that there may still be a 3500 column limit in McIDAS MD files, but
I will have to check. The error message you sent appears to say that
your text data file had enough entry for 6000 rows. Is this true?
>My schema CTYP:
>
>=====================
>"CTYP (JSP) 0001 SCHEMA -- Cloud Screening SCHEMA
>" NAME VSN DATE ID "TEXTID
>" ---- --- ----- -- -------
> SCHEMA CTYP 2 00300 0 "CLOUD MASK AND TYPE
>
> ROWS 72 "Number of ROWS
>
> DATE "YEAR AND JULIAN DAY (CCYYDDD)
> TIME "NOMINAL TIME (HH0000)
>
> COLUMNS 3600 "Maximum number of COLUMNS
>
> ALON "RANGE (-180 => +180) POSITIVE WEST
> ALAT "RANGE (-90 => +90) POSITIVE NORTH
> IDN "Satellite ID
>
> DATA
>
> SFTP "Surface type (0=sea, 1=land)
> RD01 " CH-1 reflectance
> RD02 " CH-2 3.9 um Brightness temperature
> RD03 " CH-3 6.7 um Brightness temperature
> RD04 " CH-4 10.7 um Brightness temperature
> RD05 " CH-5 12.0 um Brightness temperature
> MASK " Cloud MASK (0,1,2,3,4)
> TYPE " Cloud TYPE (0,1,2,3,4,5)
>ENDSCHEMA
>
>=================
This matches the LSCHE listing you included above.
>The beginning of txt.dat file:
>
>=================
> DATE TIME ALON ALAT IDN SFTP RD01 RD02 RD03 RD04 RD05 MASK TYPE
>1996093 151514 148.03 54.31 8 0 3.30 250.20 226.40 248.60 247.30 1 1
>1996093 151514 140.56 53.37 8 0 6.20 258.90 227.80 249.40 248.90 1 1
>1996093 151514 136.91 52.93 8 0 5.60 266.80 229.60 263.40 260.20 4 2
>1996093 151514 134.11 52.59 8 0 5.40 270.60 231.50 267.20 264.00 3 5
>1996093 151514 131.76 52.32 8 0 8.70 272.00 231.80 266.00 263.50 0 0
>1996093 151514 129.70 52.08 8 0 12.80 266.00 232.60 256.50 256.10 3 2
>1996093 151514 127.84 51.87 8 1 13.30 265.10 233.70 254.20 253.00 3 3
>1996093 151514 126.13 51.69 8 1 11.90 262.70 234.80 248.20 246.70 3 5
>1996093 151514 124.54 51.52 8 1 14.70 267.20 235.10 258.50 258.40 1 1
>1996093 151514 123.05 51.36 8 1 6.20 267.20 232.90 265.40 264.90 0 0
>1996093 151514 69.51 24.97 8 0 5.20 293.70 0.00 287.30 283.30 4 5
>
>=========================
>
>What's the problem?
How many lines are there in your data file?
>BTW, McIDAS was installed on my workstation. I am using it as a user
>(mcuser) on my DEC workstation.
OK.
>Thanks!
>
>Looking forward to hearing from you?
Again, sorry to have taken so long to reply. Preparations for the workshop
totally consumed me as we were fighting hardware problems right up until
Sunday night at 9 pm.
Tom
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