PDL::Graphics::LUT 2.3.2

PDL::Graphics::LUT is a Perl module that provides access to a number of look-up tables.

SYNOPSIS

use PDL::Graphics::PGPLOT;
use PDL::Graphics::LUT;

# what tables are available
my @tables = lut_names();

# get the reversed colour table smooth,
# with the gamma intensity ramp
my ( $l, $r, $g, $b ) = lut_data( smooth, 1, gamma );

# use the table idl5 in ctab
ctab( lut_data(idl5) );

PDL::Graphics::LUT contains a number of colour look-up tables (in rgb format) and intensity ramps, and provides routines to access this data. The format of the data is suitable for use by "ctab" in PDL::Graphics::PGPLOT.

Unlike the initial release of the package, the data tables are now stored within the PDL distribution (see $tabledir and $rampdir) rather than in the module itself. Changes to these directories will be picked up on the next call to one of the package functions.