cptclip (1) - Linux Manuals

cptclip: extract a sub-table from a GMT colour palette table (cpt).

Command to display cptclip manual in Linux: $ man 1 cptclip

NAME

cptclip - extract a sub-table from a GMT colour palette table (cpt).

SYNOPSIS

cptclip -R min/max [-h] [-o file] [-s] [-v] [-V] [file]

DESCRIPTION

The cptclip utility extracts a sub-table from a cpt format file. The arguments to the mandatory -R option, min/max, are interpreted as the (z) limits of the output unless the -s switch is specified, in which case they are the segment numbers.

The program will read from stdin if a file is not specified as the final argument, and write to stdout if the -o option is not specified.

Note that much of the functionality of this program is included in recent versions of the GMT program makecpt(1).

OPTIONS

-h, --help

: Brief help.

-o, --output file

: Write the output to file, rather than stdout.

-R, --range min/max

: The (z) range of the output, or the segments if the -s switch is also given.

-s, --segments

: The min and max arguments of the -R switch are interpreted as the segment numbers (starting at one).

-v, --verbose

: Verbose operation.

-V, --version

: Version information.

EXAMPLES

Extract the table with z-range from 2.5 to 5:

  cptclip -v -o new.cpt -R 2.5/5 old.cpt

Extract the table with the first 5 segments:

  cptclip -v -s -o new.cpt -R 1/5 old.cpt

AUTHOR

J.J. Green