gmtconvert − Convert between ASCII and binary 1-D tables
gmtconvert [ inputfiles] [ −H[nrec] ] [ −M[flag] ] [ −V ] [ −: ] [ −bi[s]n ] [ −bo[s][n] ]
gmtconvert reads its standard input [or inputfiles] and writes out the information to standard output. Its main purpose is to convert between binary and ASCII data tables. Input (and hence output) may have multiple subheaders if −M is selected.
datafile(s)
ASCII (or binary, see −bi) file(s) holding a number of data columns.
−H |
Input file(s) has Header record(s). Number of header records can be changed by editing your .gmtdefaults file. If used, GMT default is 1 header record. |
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−M |
Multiple segment file(s). Segments are separated by a special record. For ASCII files the first character must be flag [Default is ’>’]. For binary files all fields must be NaN. |
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−V |
Selects verbose mode, which will send progress reports to stderr [Default runs "silently"]. |
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−: |
Toggles between (longitude,latitude) and (latitude,longitude) input/output. [Default is (longitude,latitude)]. Applies to geographic coordinates only. |
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−bi |
Selects binary input. Append s for single precision [Default is double]. Append n for the number of columns in the binary file(s). |
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−bo |
Selects binary output. Append s for single precision [Default is double]. |
To convert the binary file test.b (single precision) with 4 columns to ASCII, try
gmtconvert test.b −bis4 > test.dat
To convert the multiple segment ASCII table test.d to a double precision binary file, try
gmtconvert test.d −M −bo > test.b
gmt(1gmt), minmax(1gmt)