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This is the command rasgetpalNCARG that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

PROGRAM:

NAME


rasgetpal - extract the color palette of a rasterfile and write it to standard output

SYNOPSIS


rasgetpal [-Version] srcfile [dstfile]

DESCRIPTION


Given srcfile and no dstfile, rasgetpal will extract the color palette from srcfile and
print it in textual form to standard output. Given srcfile and dstfile, rasgetpal will
extract the color palette from srcfile and save it in file dstfile. If the extension of
dstfile is ".txt", the color palette is saved in textual form. If it is ".pal", the
palette is saved in a binary HDF-compatible format.

Once you have a ".pal" color palette you can use it with NCSA's XImage or any other
application that uses this format of color palette. A textual color palette can be edited
using a standard text editor and then fed back to ctrans, rasview, or rascat in order to
get a modified color palette. It's also useful when you simply want to know what's in your
color palette. See "man ras_palette" for more information on these different formats.

OPTIONS


-help Print help information.

-Version
Print the version number.

EXAMPLE


Let's suppose you have an X Window Dump rasterfile called window.xwd and you'd like to get
a textual copy of the color palette.

% rasgetpal window.xwd window.txt
% vi window.txt /* edit the color table */
% rasview -pal window.txt window.xwd

You could also use the command below to get the same palette file:

% rasgetpal window.xwd >window.txt

Now suppose you'd like to get an HDF-compatible binary palette from "window.xwd":

% rasgetpal window.xwd new.pal

CAVEATS


A color map can be extracted from indexed rasterfiles but not from direct-color
rasterfiles.

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