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Mars Digital Image Map
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Mars Digital Image Map - Disc 2.iso
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indxinfo.txt
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Text File
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1991-09-21
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2KB
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41 lines
CCSD3ZF0000100000001NJPL3IF0PDS200000001 = SFDU_LABEL
RECORD_TYPE = STREAM
PRODUCT_CREATION_TIME = 1991-09-20
OBJECT = TEXT
NOTE = "Notes on using the index table."
END_OBJECT = TEXT
END
NOTES ON USING THE IMAGE INDEX TABLE
The index table contains one row (record) for each image file
on MDIM Volumes 1 through 6. Images in the POLAR subdirectories
on Volumes 1 and 6 are not identified in the index.
The index table is formatted so that it may be read directly
into many data management systems on various host computers. All
fields (columns) are separated by commas, and character fields are
enclosed in quotes. Each record consists of 512 bytes, with a
carriage return/line feed sequence in bytes 511 and 512. This allows
the table to be treated as a fixed length record file on hosts which
support this file type and as a normal text file on other hosts.
The structure and content of the image index table are described in
file VOLINFO.TXT located in the DOCUMENT directory. A label coded in
the Object Description Language (ODL), providing a formal description
of the index table structure, is located in file IMGINDEX.LBL.
For personal computer users a DBASE DBF structure is also provided
in the file IMGINDEX.DBF. This file should be copied to magnetic disk
and can then be used to load the IMGINDEX.TAB file into DBASE III or
IV with the following commands (assuming the MDIM CD-ROM is loaded
in drive L:):
.USE IMGINDEX
.APPEND FROM L:\INDEX\IMGINDEX.TAB DELIMITED
Once the table is loaded into DBASE, it can generally be automatically
loaded into other data managers or spreadsheets which provide search
and retrieval capabilities.