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pdl::graphics::pgplotoptions(3) [redhat man page]

PGPLOTOptions(3)					User Contributed Perl Documentation					  PGPLOTOptions(3)

NAME

       PDL::Graphics::PGPLOTOptions - Setting PGPLOT options

SYNOPSIS

       use PGPLOTOptions qw('default_options');

DESCRIPTION

       This package contains one function (at present) which returns PDL::Option objects for default settings for plot windows and plot commands.
       This should be complemented by functions that could affect this such as file reading commands etc.

OPTIONS

       The following is a listing of options that are set in this file and what they do and what their default value is

       Window specfic options

       These options modify the appearance of windows and can also modify the default settings for creation of plot axes etc.

       Device
	   The default PGPLOT device to use. The default value is set to the PGPLOT_DEV environment variable if set, otherwise to '?'.

       AxisColour
	   The colour with which to draw axes. Default value=3 (Green)

       HardLW, HardCH, HardFont, HardAxisColour, HardColour
	   The linewidth, character height, font and axis colour to use on hardcopy devices. The default values are HardLW=4, HardCH=1.4, Hard-
	   Font=2 (Roman), HardAxisColour=1 (Black) and HardColour=1 as well. The latter is the default plot colour to use on hardcopy devices.

       Axis
	   The axis style to use. See the PDL::Graphics::PGPLOT::Window documentation for details. It defaults to 'Normal' which is a labelled
	   box. Valid arguments are 'Empty', 'Box', 'Normal', 'Axes', 'Grid', 'LogX', 'LogY', 'LogXY'.

       AspectRatio
	   The aspect ratio of the output device. The default value is device dependent.

       WindowWidth
	   The width of the output window in inches and defaults to as big as possible.

       WindowXSize and WindowYSize
	   These are alternatives to AspectRatio and WindowWidth.

       WindowName
	   The name of the window - can later be retrieved using name(). It defaults to 'Window'+Window ID.

       NXPanel
	   The number of panels in the X-direction - defaults to 1

       NYPanel
	   The number of panels in the Y-direction - defaults to 1

       Justify
	   A boolean value which, if true, causes both axes to drawn to the same scale; see the PGPLOT "pgenv()" command for more information.

       Border
	   Adjust the spacing around the plot. See the documentation in PDL::Graphics::PGPLOT::Window for details.

       CharSize
	   The default charsize for the plot - used when annotating the axes for instance. It defaults to 1.

       PlotPosition
	   The position of the plot in normalised coordinates.

       Erase
	   Explicitly erase the plotting surface, normally required when making new plots with PlotPosition.

       Plot specific options

       For the moment see the "PDL::Graphics::PGPLOT::Window" documentation for these.

       set_pgplot_options

       This function allows the user to set the default PGPLOT options. It is particularly useful in the ".perldlrc" file since one can do

	 use PDL::Graphics::PGPLOTOptions ('set_pgplot_options');
	 set_pgplot_options('Device' => '/xs', 'HardLW' => 3);

       for instance to set the default values. The main drawback is that the routine is rather unflexible with no synonyms or case-insensitivity.

perl v5.8.0							    2002-08-15							  PGPLOTOptions(3)

Check Out this Related Man Page

LUT(3)							User Contributed Perl Documentation						    LUT(3)

NAME

       PDL::Graphics::LUT - 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') );

DESCRIPTION

       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 as FITS files (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.

FUNCTIONS

   lut_names()
       Return, as a list, the names of the available colour tables.

	@tables = lut_names();

   lut_ramps()
       Return, as a list, the names of the available intensity ramps.

	@ramps = lut_ramps();

   lut_data()
       Load in the requested colour table and intensity ramp.

	( $l, $r, $g, $b ) = lut_data( $table, [ $reverse, [ $ramp ] ] );

       Returns the levels and r, g, b components of the colour table $table. If $reverse is 1 (defaults to 0 if not supplied), then the r, g, and
       b components are reversed before being returned.  If not supplied, $ramp defaults to "ramp" (this is a linear intensity ramp).

       The returned values are piddles containing values in the range 0 to 1 inclusive, and are floats.

VARIABLES

   $tabledir
       The directory in which the colour tables (in rgb format) are stored.

   $rampdir
       The directory in which the intensity ramps are stored.

   $suffix
       The suffix for the data files in $tabledir and $rampdir.

FURTHER INFORMATION

       The colour tables were taken from the STARLINK GAIA package, and are provided under the GNU copyleft.  See http://star-www.rl.ac.uk/ and
       http://star-www.dur.ac.uk/~pdraper/ for more details.

AUTHOR

       Doug Burke (djburke@cpan.org), with thanks to Peter Draper/STARLINK for providing the colour-table data, and Christian Soeller and Karl
       Glazebrook for their help.

       All rights reserved. There is no warranty. You are allowed to redistribute this software / documentation under certain conditions. For
       details, see the file COPYING in the PDL distribution. If this file is separated from the PDL distribution, the copyright notice should be
       included in the file.

perl v5.12.1							    2009-10-17								    LUT(3)
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